#042A37#042A37

#042A37 is a dark, muted cyan. Relative luminance 0.020; OKLCH L 26.6% C 0.047 H 225.9°. Best body text is #FFFFFF at 15.09:1 contrast (WCAG AA passes).

Color values

HEX	#042A37
RGB	rgb(4, 42, 55)
HSL	hsl(195, 86%, 12%)
HSV	hsv(195, 93%, 22%)
CMYK	cmyk(92.7%, 23.6%, 0%, 78.4%)
CIE-LAB	lab(15.26, -7.49, -12.08)
CIE-LCH	lch(15.26, 14.21, 238.21°)
OKLab	oklab(26.64% -0.0329 -0.0339)
OKLCH	oklch(26.64% 0.047 225.9)
XYZ	xyz(1.5673, 1.9574, 3.9089)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042A37 #371104

analogous

#04372B #042A37 #041137

triadic

#042A37 #37042A #2A3704

tetradic

#042A37 #2B0437 #371104 #113704

square

#042A37 #2B0437 #371104 #113704

split-complementary

#042A37 #370411 #372B04

monochromatic

#02161D #02161D #042A37 #085670 #0C81A9

Accessibility & contrast

On white

15.09

#042A37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#042A37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042A37

15.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042A37	#FFFFFF	#000000	##FFFFFF
##042A37	1.00	15.09	1.39	15.09
#FFFFFF	15.09	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#232938

Deuteranopia (green-blind)

#1C2437

Tritanopia (blue-blind)

#002E2E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #042a37;
/* rgb */ color: rgb(4, 42, 55);
/* oklch */ color: oklch(26.6% 0.047 225.9);

Tailwind

colors: {
  custom: {
    50: '#4e636d',
    500: '#042a37',
    950: '#000000',
  },
}

SCSS

$custom: #042a37;
$custom-light: #4e636d;
$custom-dark: #000000;

JSON

{
  "hex": "#042a37",
  "rgb": {
    "r": 4,
    "g": 42,
    "b": 55
  },
  "hsl": {
    "h": 195.294,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.26635,
    "c": 0.04726,
    "h": 225.9
  },
  "luminance": 0.01958
}

Semantic roles & 50–950 ramp

primary

#042A37

secondary

#79351E

accent

#612BFD

background

#F4F5F6

surface

#E7EAEB

border

#C3C6C6

text

#020507

muted

#78797A

Preview Lab

Preview with #042A37

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

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