#04252B#04252B

#04252B is a very dark, muted teal. Relative luminance 0.015; OKLCH L 24.4% C 0.039 H 212.2°. Best body text is #FFFFFF at 16.10:1 contrast (WCAG AA passes).

Color values

HEX	#04252B
RGB	rgb(4, 37, 43)
HSL	hsl(189, 83%, 9%)
HSV	hsv(189, 91%, 17%)
CMYK	cmyk(90.7%, 14%, 0%, 83.1%)
CIE-LAB	lab(12.75, -9.24, -7.41)
CIE-LCH	lch(12.75, 11.84, 218.72°)
OKLab	oklab(24.43% -0.0328 -0.0207)
OKLCH	oklch(24.43% 0.039 212.2)
XYZ	xyz(1.1475, 1.5232, 2.5186)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04252B #2B0A04

analogous

#042B1E #04252B #04122B

triadic

#04252B #2B0425 #252B04

tetradic

#04252B #1E042B #2B0A04 #122B04

square

#04252B #1E042B #2B0A04 #122B04

split-complementary

#04252B #2B0412 #2B1E04

monochromatic

#03181C #03181C #04252B #095563 #0E859B

Accessibility & contrast

On white

16.10

#04252B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#04252B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04252B

16.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04252B	#FFFFFF	#000000	##FFFFFF
##04252B	1.00	16.10	1.30	16.10
#FFFFFF	16.10	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20232B

Deuteranopia (green-blind)

#1B1F2B

Tritanopia (blue-blind)

#002727

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #04252b;
/* rgb */ color: rgb(4, 37, 43);
/* oklch */ color: oklch(24.4% 0.039 212.2);

Tailwind

colors: {
  custom: {
    50: '#4b5f64',
    500: '#04252b',
    950: '#000000',
  },
}

SCSS

$custom: #04252b;
$custom-light: #4b5f64;
$custom-dark: #000000;

JSON

{
  "hex": "#04252b",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 43
  },
  "hsl": {
    "h": 189.231,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.24425,
    "c": 0.03877,
    "h": 212.2
  },
  "luminance": 0.01523
}

Semantic roles & 50–950 ramp

primary

#04252B

secondary

#6E291D

accent

#4E2EF9

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#010405

muted

#777979

Preview Lab

Preview with #04252B

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

Preview Lab → · Contrast checker → · Palette generator →