#042637#042637

#042637 is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.4% C 0.050 H 235.2°. Best body text is #FFFFFF at 15.70:1 contrast (WCAG AA passes).

Color values

HEX	#042637
RGB	rgb(4, 38, 55)
HSL	hsl(200, 86%, 12%)
HSV	hsv(200, 93%, 22%)
CMYK	cmyk(92.7%, 30.9%, 0%, 78.4%)
CIE-LAB	lab(13.75, -4.75, -14.42)
CIE-LCH	lch(13.75, 15.18, 251.78°)
OKLab	oklab(25.43% -0.0283 -0.0407)
OKLCH	oklch(25.43% 0.05 235.2)
XYZ	xyz(1.4325, 1.6877, 3.8639)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042637 #371504

analogous

#04372F #042637 #040D37

triadic

#042637 #370426 #263704

tetradic

#042637 #2F0437 #371504 #0D3704

square

#042637 #2F0437 #371504 #0D3704

split-complementary

#042637 #37040D #372F04

monochromatic

#02141D #02141D #042637 #084D70 #0C75A9

Accessibility & contrast

On white

15.70

#042637 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#042637 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042637

15.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042637	#FFFFFF	#000000	##FFFFFF
##042637	1.00	15.70	1.34	15.70
#FFFFFF	15.70	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E2638

Deuteranopia (green-blind)

#172137

Tritanopia (blue-blind)

#002A2C

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #042637;
/* rgb */ color: rgb(4, 38, 55);
/* oklch */ color: oklch(25.4% 0.050 235.2);

Tailwind

colors: {
  custom: {
    50: '#4e606e',
    500: '#042637',
    950: '#000000',
  },
}

SCSS

$custom: #042637;
$custom-light: #4e606e;
$custom-dark: #000000;

JSON

{
  "hex": "#042637",
  "rgb": {
    "r": 4,
    "g": 38,
    "b": 55
  },
  "hsl": {
    "h": 200,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.2543,
    "c": 0.04961,
    "h": 235.2
  },
  "luminance": 0.01688
}

Semantic roles & 50–950 ramp

primary

#042637

secondary

#793C1E

accent

#712BFD

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020407

muted

#78797A

Preview Lab

Preview with #042637

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

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