#042A33#042A33

#042A33 is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.4% C 0.044 H 217.5°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#042A33
RGB	rgb(4, 42, 51)
HSL	hsl(191, 85%, 11%)
HSV	hsv(191, 92%, 20%)
CMYK	cmyk(92.2%, 17.6%, 0%, 80%)
CIE-LAB	lab(15.06, -9.18, -9.57)
CIE-LCH	lch(15.06, 13.26, 226.20°)
OKLab	oklab(26.41% -0.0348 -0.0268)
OKLCH	oklch(26.41% 0.044 217.5)
XYZ	xyz(1.4753, 1.9206, 3.4243)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042A33 #330D04

analogous

#043324 #042A33 #041233

triadic

#042A33 #33042A #2A3304

tetradic

#042A33 #240433 #330D04 #123304

square

#042A33 #240433 #330D04 #123304

split-complementary

#042A33 #330412 #332404

monochromatic

#02171C #02171C #042A33 #08596C #0D87A4

Accessibility & contrast

On white

15.17

#042A33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#042A33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042A33

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042A33	#FFFFFF	#000000	##FFFFFF
##042A33	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242833

Deuteranopia (green-blind)

#1E2433

Tritanopia (blue-blind)

#002D2D

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #042a33;
/* rgb */ color: rgb(4, 42, 51);
/* oklch */ color: oklch(26.4% 0.044 217.5);

Tailwind

colors: {
  custom: {
    50: '#4d636a',
    500: '#042a33',
    950: '#000000',
  },
}

SCSS

$custom: #042a33;
$custom-light: #4d636a;
$custom-dark: #000000;

JSON

{
  "hex": "#042a33",
  "rgb": {
    "r": 4,
    "g": 42,
    "b": 51
  },
  "hsl": {
    "h": 191.489,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.26411,
    "c": 0.04393,
    "h": 217.5
  },
  "luminance": 0.01921
}

Semantic roles & 50–950 ramp

primary

#042A33

secondary

#752E1D

accent

#542CFC

background

#F4F5F6

surface

#E7EAEB

border

#C3C6C6

text

#020506

muted

#78797A

Preview Lab

Preview with #042A33

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

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