#12303E#12303E

#12303E is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.3% C 0.044 H 231.1°. Best body text is #FFFFFF at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#12303E
RGB	rgb(18, 48, 62)
HSL	hsl(199, 55%, 16%)
HSV	hsv(199, 71%, 24%)
CMYK	cmyk(71%, 22.6%, 0%, 75.7%)
CIE-LAB	lab(18.32, -5.97, -12.17)
CIE-LCH	lch(18.32, 13.55, 243.86°)
OKLab	oklab(29.34% -0.0275 -0.034)
OKLCH	oklch(29.34% 0.044 231.1)
XYZ	xyz(2.1756, 2.5901, 4.9418)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12303E #3E2012

analogous

#123E36 #12303E #121A3E

triadic

#12303E #3E1230 #303E12

tetradic

#12303E #36123E #3E2012 #1A3E12

square

#12303E #36123E #3E2012 #1A3E12

split-complementary

#12303E #3E121A #3E3612

monochromatic

#071218 #071218 #12303E #20556D #2E799D

Accessibility & contrast

On white

13.83

#12303E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#12303E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12303E

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12303E	#FFFFFF	#000000	##FFFFFF
##12303E	1.00	13.83	1.52	13.83
#FFFFFF	13.83	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292F3F

Deuteranopia (green-blind)

#232B3E

Tritanopia (blue-blind)

#003435

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #12303e;
/* rgb */ color: rgb(18, 48, 62);
/* oklch */ color: oklch(29.3% 0.044 231.1);

Tailwind

colors: {
  custom: {
    50: '#556873',
    500: '#12303e',
    950: '#000000',
  },
}

SCSS

$custom: #12303e;
$custom-light: #556873;
$custom-dark: #000000;

JSON

{
  "hex": "#12303e",
  "rgb": {
    "r": 18,
    "g": 48,
    "b": 62
  },
  "hsl": {
    "h": 199.091,
    "s": 55,
    "l": 15.686
  },
  "oklch": {
    "l": 0.29335,
    "c": 0.04372,
    "h": 231.1
  },
  "luminance": 0.0259
}

Semantic roles & 50–950 ramp

primary

#12303E

secondary

#774A35

accent

#7949DE

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030608

muted

#787A7B

Preview Lab

Preview with #12303E

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

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