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Indigo Core Dust
Color detail

Indigo Core Dust

Blue · Hue 230
Metrics
S 26% · L 48%
Contrast (WCAG)
on white5.6:1AAon black3.8:1AA Large
Save to journalSign in to saveStart palette from thisRecent trail

About this color

Indigo Core Dust (#5B659A) belongs to the blue family — hue 230°, 26% saturation, 48% 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-indigo-core-dust: #5B659A;
  --colorarchive-indigo-core-dust-hsl: hsl(230, 26%, 48%);
  --colorarchive-indigo-core-dust-rgb: rgb(91, 101, 154);
}

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 grounded mid-tone — sober, considered, well-suited to body text accents, editorial layouts, or any context where restraint reads as quality.

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: The low saturation pulls this color toward earthen, vintage, or editorial palettes. It reads as confident and grown-up rather than playful, and it tolerates being used in large blocks without becoming visually noisy.

Brands using a similar color

Within the public brand-guidelines reference catalog, these are the closest matches to #5B659A.

  • Linearprimary
    Linear Indigo · #5E6AD2
    →
  • Microsoftneutral
    Slate Gray · #737373
    →
  • Instagramprimary
    Sunset Indigo · #515BD4
    →

Cultures using a similar color

From the cultural-palette catalog, these regions feature a color close to #5B659A.

  • IrelandAtlantic Slate
    #5A6770 · Cliff face + winter sea
    →
  • France (Paris)Zinc Roof Grey
    #5E6566 · Oxidized zinc roof tiles, central Paris
    →
  • England (London)Plane Tree Green
    #5C7A5A · Platanus × hispanica, London street tree
    →

Color guides

Go deeper on using blue and color in design.

Color PsychologyBlue Color Psychology in Branding: Why Every Bank and Tech Giant Chooses BlueHistoryIndigo: The Color That Built Trade Routes and Made Blue CheapUI DesignDark Mode Color Design: Beyond Inverting Your Palette

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
Indigo Radiant Dust
#6B75A8 · hsl(230, 26%, 54%)
Darker companion
Indigo Velvet Dust
#4F5987 · hsl(230, 26%, 42%)
Complementary counterpoint
Amber Core Dust
#9A905B · hsl(50, 26%, 48%)
Analogous lead
Violet Core Dust
#655B9A · hsl(250, 26%, 48%)
Analogous echo
Steel Core Dust
#5B809A · hsl(205, 26%, 48%)
Triadic +120°
Merlot Core Dust
#9A5B65 · hsl(350, 26%, 48%)
Triadic +240°
Leaf Core Dust
#659A5B · hsl(110, 26%, 48%)
Split-comp +150°
Ember Core Dust
#9A705B · hsl(20, 26%, 48%)
Split-comp +210°
Olive Core Dust
#859A5B · hsl(80, 26%, 48%)
Export preview
Base: Indigo Core Dust #5B659A
Lighter companion: Indigo Radiant Dust #6B75A8
Darker companion: Indigo Velvet Dust #4F5987
Complementary counterpoint: Amber Core Dust #9A905B
Analogous lead: Violet Core Dust #655B9A
Analogous echo: Steel Core Dust #5B809A
Triadic +120°: Merlot Core Dust #9A5B65
Triadic +240°: Leaf Core Dust #659A5B
Split-comp +150°: Ember Core Dust #9A705B
Split-comp +210°: Olive Core Dust #859A5B

Compare

See how Indigo Core Dust compares side by side with related colors.

vsIndigo Radiant DustvsIndigo Velvet DustvsAmber Core DustvsViolet Core DustvsSteel Core DustvsMerlot Core Dust

Nearest neighbors

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

Search by hex
Nearby match
Indigo Core Muted
#646C90 · hsl(230, 18%, 48%)
Nearby match
Indigo Core Soft
#515FA4 · hsl(230, 34%, 48%)
Nearby match
Indigo Velvet Dust
#4F5987 · hsl(230, 26%, 42%)
Nearby match
Indigo Radiant Dust
#6B75A8 · hsl(230, 26%, 54%)
Nearby match
Indigo Core Faint
#6E7287 · hsl(230, 10%, 48%)
Nearby match
Indigo Velvet Muted
#585E7E · hsl(230, 18%, 42%)

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
AA5.3:1
Amber Veil Faint
#FAFAF9
AA5.4:1
Amber Veil Muted
#FBFBF9
AA5.4:1
Amber Veil Dust
#FBFBF9
AA5.4:1
Amber Veil Soft
#FCFBF8
AA5.4:1
Amber Veil Clear
#FDFCF7
AA5.4:1
Amber Veil Vivid
#FEFCF6

Color Vision Simulation

How this color appears with different color vision deficiencies.

Full simulator
Deuteranopia
#5F5E8D
Protanopia
#5F608F
Tritanopia
#5C8684
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Saturation ladder

Same hue and lightness, from gray to pure

Search
Indigo Core Faint#6E7287 · hsl(230, 10%, 48%)Indigo Core Muted#646C90 · hsl(230, 18%, 48%)Indigo Core Dust#5B659A · hsl(230, 26%, 48%)Indigo Core Soft#515FA4 · hsl(230, 34%, 48%)Indigo Core Clear#384EBC · hsl(230, 54%, 48%)Indigo Core Vivid#203ED5 · hsl(230, 74%, 48%)Indigo Core Bright#1436E1 · hsl(230, 84%, 48%)Indigo Core Pure#0A2FEB · hsl(230, 92%, 48%)
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