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.

CollectionsFamiliesPacksNotesGuidesFree PackConvertColorblindWhich pack is right for me?AboutSupportUpdates
Ready for static export
Privacy·Terms·Commerce Disclosure
colorarchive.me · © 2026 ColorArchive
Skip to content
ColorArchive
ProLog in
ArchiveAll ColorsCollections
Color detail

Cobalt Shadow Bright

Blue · Hue 220
Hex
#0B3383
RGB
rgb(11, 51, 131)
HSL
hsl(220, 84%, 28%)
CMYK
cmyk(92%, 61%, 0%, 49%)
Metrics
S 84% · L 28%
Contrast (WCAG)
on white
11.6:1AA
on black
1.8:1Fail
Sign in to saveStart palette from thisRecent trail

About this color

Cobalt Shadow Bright (#0B3383) belongs to the blue family — hue 220°, 84% saturation, 28% 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-cobalt-shadow-bright: #0B3383;
  --colorarchive-cobalt-shadow-bright-hsl: hsl(220, 84%, 28%);
  --colorarchive-cobalt-shadow-bright-rgb: rgb(11, 51, 131);
}

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
Cobalt Dusk Bright
#0E3EA0 · hsl(220, 84%, 34%)
Darker companion
Cobalt Nocturne Bright
#08255E · hsl(220, 84%, 20%)
Complementary counterpoint
Apricot Shadow Bright
#835B0B · hsl(40, 84%, 28%)
Analogous lead
Amethyst Shadow Bright
#150B83 · hsl(245, 84%, 28%)
Analogous echo
Azure Shadow Bright
#0B5B83 · hsl(200, 84%, 28%)
Triadic +120°
Garnet Shadow Bright
#830B33 · hsl(340, 84%, 28%)
Triadic +240°
Moss Shadow Bright
#33830B · hsl(100, 84%, 28%)
Split-comp +150°
Ruby Shadow Bright
#831F0B · hsl(10, 84%, 28%)
Split-comp +210°
Honey Shadow Bright
#6F830B · hsl(70, 84%, 28%)
Export preview
Base: Cobalt Shadow Bright #0B3383
Lighter companion: Cobalt Dusk Bright #0E3EA0
Darker companion: Cobalt Nocturne Bright #08255E
Complementary counterpoint: Apricot Shadow Bright #835B0B
Analogous lead: Amethyst Shadow Bright #150B83
Analogous echo: Azure Shadow Bright #0B5B83
Triadic +120°: Garnet Shadow Bright #830B33
Triadic +240°: Moss Shadow Bright #33830B
Split-comp +150°: Ruby Shadow Bright #831F0B
Split-comp +210°: Honey Shadow Bright #6F830B

Nearest neighbors

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

Search by hex
Nearby match
Cobalt Shadow Pure
#063289 · hsl(220, 92%, 28%)
Nearby match
Cobalt Dusk Bright
#0E3EA0 · hsl(220, 84%, 34%)
Nearby match
Cobalt Shadow Vivid
#13367C · hsl(220, 74%, 28%)
Nearby match
Cobalt Nocturne Bright
#08255E · hsl(220, 84%, 20%)
Nearby match
Cobalt Dusk Pure
#073CA6 · hsl(220, 92%, 34%)
Nearby match
Cobalt Dusk Vivid
#174197 · hsl(220, 74%, 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
AAA11.1:1
Apricot Veil Faint
#FAFAF9
AAA11.1:1
Apricot Veil Muted
#FBFAF9
AAA11.1:1
Apricot Veil Dust
#FBFAF9
AAA11.1:1
Apricot Veil Soft
#FCFAF8
AAA11.2:1
Apricot Veil Clear
#FDFBF7
AAA11.2:1
Apricot Veil Vivid
#FEFBF6

Color Vision Simulation

How this color appears with different color vision deficiencies.

Full simulator
Deuteranopia
#201D72
Protanopia
#222376
Tritanopia
#0F6A67
Ready to build

Turn these colors into design tokens

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

Browse packsFree 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%)