#25288D#25288D

#25288D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.1% C 0.162 H 273.0°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#25288D
RGB	rgb(37, 40, 141)
HSL	hsl(238, 58%, 35%)
HSV	hsv(238, 74%, 55%)
CMYK	cmyk(73.8%, 71.6%, 0%, 44.7%)
CIE-LAB	lab(23.11, 34.06, -56.01)
CIE-LCH	lch(23.11, 65.55, 301.30°)
OKLab	oklab(35.14% 0.0086 -0.162)
OKLCH	oklch(35.14% 0.162 273)
XYZ	xyz(6.3278, 3.8334, 25.6006)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25288D #8D8A25

analogous

#255C8D #25288D #56258D

triadic

#25288D #8D2528 #288D25

tetradic

#25288D #8D255C #8D8A25 #258D56

square

#25288D #8D255C #8D8A25 #258D56

split-complementary

#25288D #8D5625 #5C8D25

monochromatic

#0C0C2C #181A5D #25288D #3236BD #595DD3

Accessibility & contrast

On white

11.89

#25288D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#25288D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25288D

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25288D	#FFFFFF	#000000	##FFFFFF
##25288D	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00328B

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #25288d;
/* rgb */ color: rgb(37, 40, 141);
/* oklch */ color: oklch(35.1% 0.162 273.0);

Tailwind

colors: {
  custom: {
    50: '#7063af',
    500: '#25288d',
    950: '#000000',
  },
}

SCSS

$custom: #25288d;
$custom-light: #7063af;
$custom-dark: #000000;

JSON

{
  "hex": "#25288d",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 141
  },
  "hsl": {
    "h": 238.269,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35137,
    "c": 0.1622,
    "h": 273
  },
  "luminance": 0.03834
}

Semantic roles & 50–950 ramp

primary

#25288D

secondary

#B8B556

accent

#DD46E2

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #25288D

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

Preview Lab → · Contrast checker → · Palette generator →