#042140#042140

#042140 is a very dark, moderate cyan. Relative luminance 0.015; OKLCH L 24.6% C 0.068 H 253.0°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#042140
RGB	rgb(4, 33, 64)
HSL	hsl(211, 88%, 13%)
HSV	hsv(211, 94%, 25%)
CMYK	cmyk(93.8%, 48.4%, 0%, 74.9%)
CIE-LAB	lab(12.50, 3.09, -22.74)
CIE-LCH	lch(12.50, 22.95, 277.73°)
OKLab	oklab(24.63% -0.0199 -0.0652)
OKLCH	oklch(24.63% 0.068 253)
XYZ	xyz(1.5190, 1.4835, 5.0558)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042140 #402304

analogous

#043F40 #042140 #050440

triadic

#042140 #400421 #214004

tetradic

#042140 #40043F #402304 #044005

square

#042140 #40043F #402304 #044005

split-complementary

#042140 #400504 #3F4004

monochromatic

#020F1D #020F1D #042140 #083F7A #0B5CB3

Accessibility & contrast

On white

16.19

#042140 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#042140 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042140

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042140	#FFFFFF	#000000	##FFFFFF
##042140	1.00	16.19	1.30	16.19
#FFFFFF	16.19	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112341

Deuteranopia (green-blind)

#061E3F

Tritanopia (blue-blind)

#00282D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #042140;
/* rgb */ color: rgb(4, 33, 64);
/* oklch */ color: oklch(24.6% 0.068 253.0);

Tailwind

colors: {
  custom: {
    50: '#505b75',
    500: '#042140',
    950: '#000000',
  },
}

SCSS

$custom: #042140;
$custom-light: #505b75;
$custom-dark: #000000;

JSON

{
  "hex": "#042140",
  "rgb": {
    "r": 4,
    "g": 33,
    "b": 64
  },
  "hsl": {
    "h": 211,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24633,
    "c": 0.06815,
    "h": 253
  },
  "luminance": 0.01484
}

Semantic roles & 50–950 ramp

primary

#042140

secondary

#81521F

accent

#9729FE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020408

muted

#78797B

Preview Lab

Preview with #042140

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

Preview Lab → · Contrast checker → · Palette generator →