#04172D#04172D

#04172D is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.3% C 0.051 H 253.0°. Best body text is #FFFFFF at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#04172D
RGB	rgb(4, 23, 45)
HSL	hsl(212, 84%, 10%)
HSV	hsv(212, 91%, 18%)
CMYK	cmyk(91.1%, 48.9%, 0%, 82.4%)
CIE-LAB	lab(7.48, 1.76, -17.10)
CIE-LCH	lch(7.48, 17.19, 275.87°)
OKLab	oklab(20.26% -0.015 -0.0489)
OKLCH	oklch(20.26% 0.051 253)
XYZ	xyz(0.8299, 0.8280, 2.5982)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04172D #2D1A04

analogous

#042C2D #04172D #06042D

triadic

#04172D #2D0417 #172D04

tetradic

#04172D #2D042C #2D1A04 #042D06

square

#04172D #2D042C #2D1A04 #042D06

split-complementary

#04172D #2D0604 #2C2D04

monochromatic

#020E1C #020E1C #04172D #093465 #0E509D

Accessibility & contrast

On white

18.02

#04172D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#04172D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04172D

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04172D	#FFFFFF	#000000	##FFFFFF
##04172D	1.00	18.02	1.17	18.02
#FFFFFF	18.02	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C192E

Deuteranopia (green-blind)

#06152D

Tritanopia (blue-blind)

#001C1F

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #04172d;
/* rgb */ color: rgb(4, 23, 45);
/* oklch */ color: oklch(20.3% 0.051 253.0);

Tailwind

colors: {
  custom: {
    50: '#4a5366',
    500: '#04172d',
    950: '#000000',
  },
}

SCSS

$custom: #04172d;
$custom-light: #4a5366;
$custom-dark: #000000;

JSON

{
  "hex": "#04172d",
  "rgb": {
    "r": 4,
    "g": 23,
    "b": 45
  },
  "hsl": {
    "h": 212.195,
    "s": 83.673,
    "l": 9.608
  },
  "oklch": {
    "l": 0.20259,
    "c": 0.05114,
    "h": 253
  },
  "luminance": 0.00828
}

Semantic roles & 50–950 ramp

primary

#04172D

secondary

#70491D

accent

#9B2EFA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #04172D

Body copy rendered with the generated semantic roles for this colour.

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