#04252F#04252F

#04252F is a very dark, muted cyan. Relative luminance 0.016; OKLCH L 24.6% C 0.042 H 222.3°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#04252F
RGB	rgb(4, 37, 47)
HSL	hsl(194, 84%, 10%)
HSV	hsv(194, 91%, 18%)
CMYK	cmyk(91.5%, 21.3%, 0%, 81.6%)
CIE-LAB	lab(12.95, -7.56, -9.98)
CIE-LCH	lch(12.95, 12.52, 232.87°)
OKLab	oklab(24.64% -0.0308 -0.028)
OKLCH	oklch(24.64% 0.042 222.3)
XYZ	xyz(1.2245, 1.5540, 2.9242)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04252F #2F0E04

analogous

#042F23 #04252F #04102F

triadic

#04252F #2F0425 #252F04

tetradic

#04252F #23042F #2F0E04 #102F04

square

#04252F #23042F #2F0E04 #102F04

split-complementary

#04252F #2F0410 #2F2304

monochromatic

#02161C #02161C #04252F #095167 #0E7EA0

Accessibility & contrast

On white

16.02

#04252F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#04252F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04252F

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04252F	#FFFFFF	#000000	##FFFFFF
##04252F	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F2430

Deuteranopia (green-blind)

#19202F

Tritanopia (blue-blind)

#002828

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #04252f;
/* rgb */ color: rgb(4, 37, 47);
/* oklch */ color: oklch(24.6% 0.042 222.3);

Tailwind

colors: {
  custom: {
    50: '#4c5f67',
    500: '#04252f',
    950: '#000000',
  },
}

SCSS

$custom: #04252f;
$custom-light: #4c5f67;
$custom-dark: #000000;

JSON

{
  "hex": "#04252f",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 47
  },
  "hsl": {
    "h": 193.953,
    "s": 84.314,
    "l": 10
  },
  "oklch": {
    "l": 0.24644,
    "c": 0.04158,
    "h": 222.3
  },
  "luminance": 0.01554
}

Semantic roles & 50–950 ramp

primary

#04252F

secondary

#72311D

accent

#5D2DFB

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#010406

muted

#77797A

Preview Lab

Preview with #04252F

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

Preview Lab → · Contrast checker → · Palette generator →