#04253F#04253F

#04253F is a dark, moderate cyan. Relative luminance 0.017; OKLCH L 25.7% C 0.062 H 246.9°. Best body text is #FFFFFF at 15.65:1 contrast (WCAG AA passes).

Color values

HEX	#04253F
RGB	rgb(4, 37, 63)
HSL	hsl(206, 88%, 13%)
HSV	hsv(206, 94%, 25%)
CMYK	cmyk(93.7%, 41.3%, 0%, 75.3%)
CIE-LAB	lab(13.87, -0.39, -19.86)
CIE-LCH	lch(13.87, 19.86, 268.89°)
OKLab	oklab(25.68% -0.0242 -0.0566)
OKLCH	oklch(25.68% 0.062 246.9)
XYZ	xyz(1.6085, 1.7076, 4.9465)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04253F #3F1E04

analogous

#043F3B #04253F #04073F

triadic

#04253F #3F0425 #253F04

tetradic

#04253F #3B043F #3F1E04 #073F04

square

#04253F #3B043F #3F1E04 #073F04

split-complementary

#04253F #3F0407 #3F3B04

monochromatic

#02111D #02111D #04253F #084779 #0B69B2

Accessibility & contrast

On white

15.65

#04253F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#04253F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04253F

15.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04253F	#FFFFFF	#000000	##FFFFFF
##04253F	1.00	15.65	1.34	15.65
#FFFFFF	15.65	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192640

Deuteranopia (green-blind)

#10213F

Tritanopia (blue-blind)

#002B2F

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #04253f;
/* rgb */ color: rgb(4, 37, 63);
/* oklch */ color: oklch(25.7% 0.062 246.9);

Tailwind

colors: {
  custom: {
    50: '#505f74',
    500: '#04253f',
    950: '#000000',
  },
}

SCSS

$custom: #04253f;
$custom-light: #505f74;
$custom-dark: #000000;

JSON

{
  "hex": "#04253f",
  "rgb": {
    "r": 4,
    "g": 37,
    "b": 63
  },
  "hsl": {
    "h": 206.441,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.25682,
    "c": 0.06158,
    "h": 246.9
  },
  "luminance": 0.01708
}

Semantic roles & 50–950 ramp

primary

#04253F

secondary

#804A1E

accent

#872AFE

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020408

muted

#78797B

Preview Lab

Preview with #04253F

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

Preview Lab → · Contrast checker → · Palette generator →