#25318B#25318B

#25318B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.149 H 271.0°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#25318B
RGB	rgb(37, 49, 139)
HSL	hsl(233, 58%, 35%)
HSV	hsv(233, 73%, 55%)
CMYK	cmyk(73.4%, 64.7%, 0%, 45.5%)
CIE-LAB	lab(25.12, 27.45, -51.47)
CIE-LCH	lch(25.12, 58.34, 298.07°)
OKLab	oklab(36.54% 0.0027 -0.1487)
OKLCH	oklch(36.54% 0.149 271)
XYZ	xyz(6.5199, 4.4534, 24.9371)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25318B #8B7F25

analogous

#25648B #25318B #4C258B

triadic

#25318B #8B2531 #318B25

tetradic

#25318B #8B2564 #8B7F25 #258B4C

square

#25318B #8B2564 #8B7F25 #258B4C

split-complementary

#25318B #8B4C25 #648B25

monochromatic

#0B0F2A #18205B #25318B #3242BB #5866D3

Accessibility & contrast

On white

11.11

#25318B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#25318B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25318B

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25318B	#FFFFFF	#000000	##FFFFFF
##25318B	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#003789

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #25318b;
/* rgb */ color: rgb(37, 49, 139);
/* oklch */ color: oklch(36.5% 0.149 271.0);

Tailwind

colors: {
  custom: {
    50: '#6f69ae',
    500: '#25318b',
    950: '#000000',
  },
}

SCSS

$custom: #25318b;
$custom-light: #6f69ae;
$custom-dark: #000000;

JSON

{
  "hex": "#25318b",
  "rgb": {
    "r": 37,
    "g": 49,
    "b": 139
  },
  "hsl": {
    "h": 232.941,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.36537,
    "c": 0.1487,
    "h": 271
  },
  "luminance": 0.04454
}

Semantic roles & 50–950 ramp

primary

#25318B

secondary

#B7AB55

accent

#CF47E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #25318B

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

Preview Lab → · Contrast checker → · Palette generator →