#04242F#04242F

#04242F is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.3% C 0.042 H 225.1°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#04242F
RGB	rgb(4, 36, 47)
HSL	hsl(195, 84%, 10%)
HSV	hsv(195, 91%, 18%)
CMYK	cmyk(91.5%, 23.4%, 0%, 81.6%)
CIE-LAB	lab(12.56, -6.88, -10.58)
CIE-LCH	lch(12.56, 12.62, 236.95°)
OKLab	oklab(24.33% -0.0295 -0.0297)
OKLCH	oklch(24.33% 0.042 225.1)
XYZ	xyz(1.1938, 1.4927, 2.9140)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04242F #2F0F04

analogous

#042F25 #04242F #040E2F

triadic

#04242F #2F0424 #242F04

tetradic

#04242F #25042F #2F0F04 #0E2F04

square

#04242F #25042F #2F0F04 #0E2F04

split-complementary

#04242F #2F040E #2F2504

monochromatic

#02161C #02161C #04242F #094F67 #0E7AA0

Accessibility & contrast

On white

16.17

#04242F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#04242F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04242F

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04242F	#FFFFFF	#000000	##FFFFFF
##04242F	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E2330

Deuteranopia (green-blind)

#181F2F

Tritanopia (blue-blind)

#002728

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #04242f;
/* rgb */ color: rgb(4, 36, 47);
/* oklch */ color: oklch(24.3% 0.042 225.1);

Tailwind

colors: {
  custom: {
    50: '#4c5e67',
    500: '#04242f',
    950: '#000000',
  },
}

SCSS

$custom: #04242f;
$custom-light: #4c5e67;
$custom-dark: #000000;

JSON

{
  "hex": "#04242f",
  "rgb": {
    "r": 4,
    "g": 36,
    "b": 47
  },
  "hsl": {
    "h": 195.349,
    "s": 84.314,
    "l": 10
  },
  "oklch": {
    "l": 0.24334,
    "c": 0.04189,
    "h": 225.1
  },
  "luminance": 0.01493
}

Semantic roles & 50–950 ramp

primary

#04242F

secondary

#72331D

accent

#622DFB

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010406

muted

#77797A

Preview Lab

Preview with #04242F

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

Preview Lab → · Contrast checker → · Palette generator →