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Cerulean Radiant Bright
Color detail

Cerulean Radiant Bright

Blue · Hue 190
Metrics
S 84% · L 54%
Contrast (WCAG)
on white1.9:1Failon black10.8:1AA
Save to journalSign in to saveStart palette from thisRecent trail

About this color

Cerulean Radiant Bright (#27CBEC) belongs to the blue family — hue 190°, 84% saturation, 54% lightness. Copy the hex, RGB, or HSL value above, or paste the CSS custom property below into your stylesheet to reference this color directly.

CSS
:root {
  --colorarchive-cerulean-radiant-bright: #27CBEC;
  --colorarchive-cerulean-radiant-bright-hsl: hsl(190, 84%, 54%);
  --colorarchive-cerulean-radiant-bright-rgb: rgb(39, 203, 236);
}

AI Color Names

Let AI suggest alternative poetic names for this color in English and Chinese.

Design Context

ProfessionalReliableFocused
Common in

Banking · Insurance · Enterprise Software

Pairs well with

White for clean authority, light orange for warm contrast, dark navy for depth

Design tip

The backbone of business interfaces. Use for primary actions and navigation. Blue links are the web's universal convention.

Cultural context ▶

Blue is the world's most popular color. It represents trust, competence, and stability across virtually all cultures.

Color Origins

Blue family

The most-loved color on the planet, and the most overused.

Heritage

Blue is one of the hardest colors for nature to make with pigment — and, historically, one of the most expensive to paint with. Ultramarine, ground from lapis lazuli mined in Afghanistan, could cost as much as gold in Renaissance Europe; Vermeer used it lavishly. Egyptian blue (the first synthetic pigment, ~3000 BCE) was lost for centuries and rediscovered in the 19th. Prussian blue (1704) quickly gave painters a cheap alternative to ultramarine; Yves Klein's IKB (1960) re-aristocratized blue.

Across cultures

In ancient Egypt blue was the color of the Nile and the heavens — sacred, protective. In China blue-and-white porcelain (qinghua) defined export ceramics for centuries. In Mediterranean traditions blue wards off the evil eye. In America, IBM's blue logo helped earn it the nickname 'Big Blue'; in Japan, indigo (ai) is the centuries-old workwear dye that became the ground tone of an entire textile tradition. Across the world blue is consistently rated the most-liked color — in one ten-country survey it led every other color by 8 to 18 points.

In the wild

Mark Zuckerberg has said Facebook is blue because he is red-green colorblind. Levi's blue is the natural color of indigo on cotton. Twitter Blue (#1DA1F2) defined social-media blue for years before the 2023 rebrand to X scrapped it. The blue checkmark, the blue link, the blue 'send' button — blue has become the default color of digital trust, to the point of being a UX cliché.

How it reads

Blue tends to recede — the eye focuses blue light slightly in front of the retina, which can make blue elements feel deep or distant. It reads as trustworthy, calm, corporate, and (at the cool end) cold. Light blues read airy and clinical; mid blues are the default for tech and finance; deep blues read as luxurious or naval. The omnipresence of blue in software is real: most enterprise UIs reach for it because it offends the fewest stakeholders, which is also the reason it can feel like the absence of a real choice.

This particular tone

A vivid mid-tone — distinctive enough to anchor an identity, saturated enough to demand a quiet supporting palette.

Lightness band: At mid-lightness the hue carries its full character. This is the band where many identity colors live: bright enough to be distinctive at small sizes, deep enough to sit cleanly on a white canvas.

Saturation band: At this saturation the color is doing work. It reads as a brand statement, a sport accessory, or a UI signal. It should be used in small, deliberate doses against quieter neighbors; large fields at this saturation will exhaust the eye.

Brands using a similar color

Within the public brand-guidelines reference catalog, these are the closest matches to #27CBEC.

  • Slackaccent
    Slack Blue · #36C5F0
    →
  • Figmaprimary
    Figma Blue · #1ABCFE
    →
  • Canvaprimary
    Canva Cyan · #00C4CC
    →

Cultures using a similar color

From the cultural-palette catalog, these regions feature a color close to #27CBEC.

  • AustraliaReef Turquoise
    #3FBFB9 · Whitsunday lagoons
    →
  • Turkey (Istanbul)Bosphorus Turquoise
    #4DA8AC · Marmara strait water
    →
  • IcelandGlacial Cyan
    #75BBC1 · Vatnajökull ice cave light
    →

Color guides

Go deeper on using blue and color in design.

Brand & MarketingTechnology Brand Color Design: Trust, Intelligence, and the Blue ProblemColor PsychologyBlue Color Psychology in Branding: Why Every Bank and Tech Giant Chooses BlueBrand & MarketingWebsite Color Palette Ideas for Landing Pages That Still Convert

Tonal strip

All lightness levels at this hue and saturation. Click any to navigate.

Palette moves

Instead of stopping at one swatch, use nearby, opposite, and tonal neighbors to branch into a broader palette.

Lighter companion
Cerulean Tone Bright
#43D2EF · hsl(190, 84%, 60%)
Darker companion
Cerulean Core Bright
#14BFE1 · hsl(190, 84%, 48%)
Complementary counterpoint
Ruby Radiant Bright
#EC4827 · hsl(10, 84%, 54%)
Analogous lead
Sapphire Radiant Bright
#278AEC · hsl(210, 84%, 54%)
Analogous echo
Lagoon Radiant Bright
#27ECCB · hsl(170, 84%, 54%)
Triadic +120°
Peony Radiant Bright
#EC27CB · hsl(310, 84%, 54%)
Triadic +240°
Honey Radiant Bright
#CBEC27 · hsl(70, 84%, 54%)
Split-comp +150°
Garnet Radiant Bright
#EC2769 · hsl(340, 84%, 54%)
Split-comp +210°
Apricot Radiant Bright
#ECAB27 · hsl(40, 84%, 54%)
Export preview
Base: Cerulean Radiant Bright #27CBEC
Lighter companion: Cerulean Tone Bright #43D2EF
Darker companion: Cerulean Core Bright #14BFE1
Complementary counterpoint: Ruby Radiant Bright #EC4827
Analogous lead: Sapphire Radiant Bright #278AEC
Analogous echo: Lagoon Radiant Bright #27ECCB
Triadic +120°: Peony Radiant Bright #EC27CB
Triadic +240°: Honey Radiant Bright #CBEC27
Split-comp +150°: Garnet Radiant Bright #EC2769
Split-comp +210°: Apricot Radiant Bright #ECAB27

Compare

See how Cerulean Radiant Bright compares side by side with related colors.

vsCerulean Tone BrightvsCerulean Core BrightvsRuby Radiant BrightvsSapphire Radiant BrightvsLagoon Radiant BrightvsPeony Radiant Bright

Nearest neighbors

The closest archive matches by hue, saturation, and lightness.

Search by hex
Nearby match
Cerulean Radiant Pure
#1ED2F6 · hsl(190, 92%, 54%)
Nearby match
Cerulean Core Bright
#14BFE1 · hsl(190, 84%, 48%)
Nearby match
Cerulean Tone Bright
#43D2EF · hsl(190, 84%, 60%)
Nearby match
Cerulean Radiant Vivid
#33C4E1 · hsl(190, 74%, 54%)
Nearby match
Cerulean Core Pure
#0AC5EB · hsl(190, 92%, 48%)
Nearby match
Cerulean Tone Pure
#3BD8F7 · hsl(190, 92%, 60%)

Accessible pairings

Archive colors that meet WCAG contrast standards when paired with this color. Use as text-on-background or background-on-text.

Contrast checker
AAA7:1
Ruby Nocturne Soft
#442722
AAA8.2:1
Ruby Ink Faint
#272120
AAA8.3:1
Ruby Ink Muted
#2A1F1D
AAA8.3:1
Ruby Ink Dust
#2D1E1A
AAA8.3:1
Ruby Ink Soft
#301C18
AAA8.4:1
Ruby Ink Clear
#371710

Color Vision Simulation

How this color appears with different color vision deficiencies.

Full simulator
Deuteranopia
#867AE3
Protanopia
#8E8FE5
Tritanopia
#3FDEDD
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Saturation ladder

Same hue and lightness, from gray to pure

Search
Cerulean Radiant Faint#7E9295 · hsl(190, 10%, 54%)Cerulean Radiant Muted#75989F · hsl(190, 18%, 54%)Cerulean Radiant Dust#6B9EA8 · hsl(190, 26%, 54%)Cerulean Radiant Soft#62A4B2 · hsl(190, 34%, 54%)Cerulean Radiant Clear#4AB4C9 · hsl(190, 54%, 54%)Cerulean Radiant Vivid#33C4E1 · hsl(190, 74%, 54%)Cerulean Radiant Bright#27CBEC · hsl(190, 84%, 54%)Cerulean Radiant Pure#1ED2F6 · hsl(190, 92%, 54%)
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