#04313F#04313F

#04313F is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.2% C 0.052 H 224.4°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#04313F
RGB	rgb(4, 49, 63)
HSL	hsl(194, 88%, 13%)
HSV	hsv(194, 94%, 25%)
CMYK	cmyk(93.7%, 22.2%, 0%, 75.3%)
CIE-LAB	lab(18.28, -8.69, -12.95)
CIE-LCH	lch(18.28, 15.60, 236.13°)
OKLab	oklab(29.19% -0.0372 -0.0364)
OKLCH	oklch(29.19% 0.052 224.4)
XYZ	xyz(2.0452, 2.5811, 5.0921)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04313F #3F1204

analogous

#043F2F #04313F #04133F

triadic

#04313F #3F0431 #313F04

tetradic

#04313F #2F043F #3F1204 #133F04

square

#04313F #2F043F #3F1204 #133F04

split-complementary

#04313F #3F0413 #3F2F04

monochromatic

#02161D #02161D #04313F #085E79 #0B8BB2

Accessibility & contrast

On white

13.85

#04313F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#04313F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04313F

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04313F	#FFFFFF	#000000	##FFFFFF
##04313F	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293040

Deuteranopia (green-blind)

#212A3F

Tritanopia (blue-blind)

#003536

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #04313f;
/* rgb */ color: rgb(4, 49, 63);
/* oklch */ color: oklch(29.2% 0.052 224.4);

Tailwind

colors: {
  custom: {
    50: '#516974',
    500: '#04313f',
    950: '#000000',
  },
}

SCSS

$custom: #04313f;
$custom-light: #516974;
$custom-dark: #000000;

JSON

{
  "hex": "#04313f",
  "rgb": {
    "r": 4,
    "g": 49,
    "b": 63
  },
  "hsl": {
    "h": 194.237,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.2919,
    "c": 0.05203,
    "h": 224.4
  },
  "luminance": 0.02581
}

Semantic roles & 50–950 ramp

primary

#04313F

secondary

#80361E

accent

#5C2AFE

background

#F4F6F7

surface

#E7EBED

border

#C3C6C8

text

#020608

muted

#787A7B

Preview Lab

Preview with #04313F

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

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