#04313A#04313A

#04313A is a dark, muted cyan. Relative luminance 0.025; OKLCH L 28.9% C 0.048 H 214.9°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#04313A
RGB	rgb(4, 49, 58)
HSL	hsl(190, 87%, 12%)
HSV	hsv(190, 93%, 23%)
CMYK	cmyk(93.1%, 15.5%, 0%, 77.3%)
CIE-LAB	lab(18.04, -10.76, -9.88)
CIE-LCH	lch(18.04, 14.61, 222.56°)
OKLab	oklab(28.92% -0.0396 -0.0276)
OKLCH	oklch(28.92% 0.048 214.9)
XYZ	xyz(1.9118, 2.5277, 4.3893)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04313A #3A0D04

analogous

#043A28 #04313A #04163A

triadic

#04313A #3A0431 #313A04

tetradic

#04313A #28043A #3A0D04 #163A04

square

#04313A #28043A #3A0D04 #163A04

split-complementary

#04313A #3A0416 #3A2804

monochromatic

#02181D #02181D #04313A #086173 #0C92AD

Accessibility & contrast

On white

13.95

#04313A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#04313A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04313A

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04313A	#FFFFFF	#000000	##FFFFFF
##04313A	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2F3B

Deuteranopia (green-blind)

#242A3A

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #04313a;
/* rgb */ color: rgb(4, 49, 58);
/* oklch */ color: oklch(28.9% 0.048 214.9);

Tailwind

colors: {
  custom: {
    50: '#506970',
    500: '#04313a',
    950: '#000000',
  },
}

SCSS

$custom: #04313a;
$custom-light: #506970;
$custom-dark: #000000;

JSON

{
  "hex": "#04313a",
  "rgb": {
    "r": 4,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 190,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.28919,
    "c": 0.04827,
    "h": 214.9
  },
  "luminance": 0.02528
}

Semantic roles & 50–950 ramp

primary

#04313A

secondary

#7C2E1E

accent

#4E2BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #04313A

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

Preview Lab → · Contrast checker → · Palette generator →