We're live on Product Hunt!Support us
ColorArchive

A curated color library with 5,000+ algorithmically generated colors. Browse, search, save favorites, and export palette tokens — no account required.

CollectionsFamiliesNotesGuidesFree ResourcesConvertColorblindAboutSupportUpdates
Ready for static export
Privacy·Terms·Refunds·Cookies·Commerce Disclosure
colorarchive.org · © 2026 ColorArchive
Skip to content
ColorArchive
ProLog in
ArchiveAll ColorsCollections
Color detail

Cool Gray Dusk

Blue · Hue 210
Hex
#51575C
RGB
rgb(81, 87, 92)
HSL
hsl(210, 6%, 34%)
CMYK
cmyk(12%, 5%, 0%, 64%)
Metrics
S 6% · L 34%
Contrast (WCAG)
on white
7.3:1AA
on black
2.9:1Fail
Sign in to saveStart palette from thisRecent trail

About this color

Cool Gray Dusk (#51575C) belongs to the blue family — hue 210°, 6% saturation, 34% 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-cool-gray-dusk: #51575C;
  --colorarchive-cool-gray-dusk-hsl: hsl(210, 6%, 34%);
  --colorarchive-cool-gray-dusk-rgb: rgb(81, 87, 92);
}

AI Color Names

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

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
Cool Gray Velvet
#656B72 · hsl(210, 6%, 42%)
Darker companion
Cool Gray Shadow
#43474C · hsl(210, 6%, 28%)
Complementary counterpoint
Warm Gray Dusk
#5C5751 · hsl(30, 6%, 34%)
Analogous lead
Indigo Dusk Faint
#4E515F · hsl(230, 10%, 34%)
Analogous echo
Cerulean Dusk Faint
#4E5C5F · hsl(190, 10%, 34%)
Triadic +120°
Blush Dusk Faint
#5F4E57 · hsl(330, 10%, 34%)
Triadic +240°
Lime Dusk Faint
#575F4E · hsl(90, 10%, 34%)
Split-comp +150°
Crimson Dusk Faint
#5F4E4E · hsl(0, 10%, 34%)
Split-comp +210°
Citrine Dusk Faint
#5F5F4E · hsl(60, 10%, 34%)
Export preview
Base: Cool Gray Dusk #51575C
Lighter companion: Cool Gray Velvet #656B72
Darker companion: Cool Gray Shadow #43474C
Complementary counterpoint: Warm Gray Dusk #5C5751
Analogous lead: Indigo Dusk Faint #4E515F
Analogous echo: Cerulean Dusk Faint #4E5C5F
Triadic +120°: Blush Dusk Faint #5F4E57
Triadic +240°: Lime Dusk Faint #575F4E
Split-comp +150°: Crimson Dusk Faint #5F4E4E
Split-comp +210°: Citrine Dusk Faint #5F5F4E

Nearest neighbors

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

Search by hex
Nearby match
Sapphire Dusk Faint
#4E575F · hsl(210, 10%, 34%)
Nearby match
Cool Gray Shadow
#43474C · hsl(210, 6%, 28%)
Nearby match
Sapphire Dusk Muted
#475766 · hsl(210, 18%, 34%)
Nearby match
Cool Gray Velvet
#656B72 · hsl(210, 6%, 42%)
Nearby match
Sapphire Shadow Faint
#40474F · hsl(210, 10%, 28%)
Nearby match
Steel Dusk Faint
#4E585F · hsl(205, 10%, 34%)

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
Coral Veil Faint
#FAFAF9
AAA7:1
Coral Veil Muted
#FBFAF9
AAA7:1
Coral Veil Dust
#FBFAF9
AAA7:1
Coral Veil Soft
#FCFAF8
AAA7:1
Coral Veil Clear
#FDFAF7
AAA7.1:1
Coral Veil Vivid
#FEFAF6

Color Vision Simulation

How this color appears with different color vision deficiencies.

Full simulator
Deuteranopia
#53535B
Protanopia
#54545B
Tritanopia
#515A5A
Ready to build

Turn these colors into design tokens

ColorArchive Pro includes CSS variables, Figma tokens, Tailwind config, and Procreate swatches — ready to drop into any project.

Upgrade to ProFree downloadView collections

Related colors

More from Blue

Search
Cerulean Ink Faint#202627 · hsl(190, 10%, 14%)Cerulean Nocturne Faint#2E3638 · hsl(190, 10%, 20%)Cerulean Shadow Faint#404C4F · hsl(190, 10%, 28%)Cerulean Dusk Faint#4E5C5F · hsl(190, 10%, 34%)Cerulean Velvet Faint#607276 · hsl(190, 10%, 42%)Cerulean Core Faint#6E8387 · hsl(190, 10%, 48%)Cerulean Radiant Faint#7E9295 · hsl(190, 10%, 54%)Cerulean Tone Faint#8FA0A3 · hsl(190, 10%, 60%)
Appears in collections
Parisian Salon