#04252D#04252D

#04252D is a very dark, muted cyan. Relative luminance 0.015; OKLCH L 24.5% C 0.040 H 217.4°. Best body text is #FFFFFF at 16.06:1 contrast (WCAG AA passes).

Color values

HEX	#04252D
RGB	rgb(4, 37, 45)
HSL	hsl(192, 84%, 10%)
HSV	hsv(192, 91%, 18%)
CMYK	cmyk(91.1%, 17.8%, 0%, 82.4%)
CIE-LAB	lab(12.85, -8.41, -8.70)
CIE-LCH	lch(12.85, 12.10, 225.98°)
OKLab	oklab(24.53% -0.0318 -0.0243)
OKLCH	oklch(24.53% 0.04 217.4)
XYZ	xyz(1.1851, 1.5383, 2.7166)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04252D #2D0C04

analogous

#042D21 #04252D #04112D

triadic

#04252D #2D0425 #252D04

tetradic

#04252D #21042D #2D0C04 #112D04

square

#04252D #21042D #2D0C04 #112D04

split-complementary

#04252D #2D0411 #2D2104

monochromatic

#02171C #02171C #04252D #095365 #0E819D

Accessibility & contrast

On white

16.06

#04252D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#04252D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04252D

16.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04252D	#FFFFFF	#000000	##FFFFFF
##04252D	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)

#20242D

Deuteranopia (green-blind)

#1A1F2D

Tritanopia (blue-blind)

#002828

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #04252d;
/* rgb */ color: rgb(4, 37, 45);
/* oklch */ color: oklch(24.5% 0.040 217.4);

Tailwind

colors: {
  custom: {
    50: '#4b5f65',
    500: '#04252d',
    950: '#000000',
  },
}

SCSS

$custom: #04252d;
$custom-light: #4b5f65;
$custom-dark: #000000;

JSON

{
  "hex": "#04252d",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 45
  },
  "hsl": {
    "h": 191.707,
    "s": 83.673,
    "l": 9.608
  },
  "oklch": {
    "l": 0.24533,
    "c": 0.04,
    "h": 217.4
  },
  "luminance": 0.01538
}

Semantic roles & 50–950 ramp

primary

#04252D

secondary

#702D1D

accent

#562EFA

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010405

muted

#77797A

Preview Lab

Preview with #04252D

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

Preview Lab → · Contrast checker → · Palette generator →