#042240#042240

#042240 is a very dark, moderate cyan. Relative luminance 0.015; OKLCH L 24.9% C 0.067 H 251.8°. Best body text is #FFFFFF at 16.06:1 contrast (WCAG AA passes).

Color values

HEX	#042240
RGB	rgb(4, 34, 64)
HSL	hsl(210, 88%, 13%)
HSV	hsv(210, 94%, 25%)
CMYK	cmyk(93.8%, 46.9%, 0%, 74.9%)
CIE-LAB	lab(12.86, 2.33, -22.17)
CIE-LCH	lch(12.86, 22.29, 275.99°)
OKLab	oklab(24.91% -0.0209 -0.0635)
OKLCH	oklch(24.91% 0.067 251.8)
XYZ	xyz(1.5472, 1.5398, 5.0652)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#042240 #402204

analogous

#044040 #042240 #040440

triadic

#042240 #400422 #224004

tetradic

#042240 #400440 #402204 #044004

square

#042240 #400440 #402204 #044004

split-complementary

#042240 #400404 #404004

monochromatic

#020F1D #020F1D #042240 #08417A #0B5FB3

Accessibility & contrast

On white

16.06

#042240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#042240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #042240

16.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##042240	#FFFFFF	#000000	##FFFFFF
##042240	1.00	16.06	1.31	16.06
#FFFFFF	16.06	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#132441

Deuteranopia (green-blind)

#081F3F

Tritanopia (blue-blind)

#00292D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #042240;
/* rgb */ color: rgb(4, 34, 64);
/* oklch */ color: oklch(24.9% 0.067 251.8);

Tailwind

colors: {
  custom: {
    50: '#505c75',
    500: '#042240',
    950: '#000000',
  },
}

SCSS

$custom: #042240;
$custom-light: #505c75;
$custom-dark: #000000;

JSON

{
  "hex": "#042240",
  "rgb": {
    "r": 4,
    "g": 34,
    "b": 64
  },
  "hsl": {
    "h": 210,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2491,
    "c": 0.06683,
    "h": 251.8
  },
  "luminance": 0.0154
}

Semantic roles & 50–950 ramp

primary

#042240

secondary

#81501F

accent

#9429FE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020408

muted

#78797B

Preview Lab

Preview with #042240

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

Preview Lab → · Contrast checker → · Palette generator →