#25288B#25288B

#25288B is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.9% C 0.160 H 273.2°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#25288B
RGB	rgb(37, 40, 139)
HSL	hsl(238, 58%, 35%)
HSV	hsv(238, 73%, 55%)
CMYK	cmyk(73.4%, 71.2%, 0%, 45.5%)
CIE-LAB	lab(22.91, 33.34, -55.09)
CIE-LCH	lch(22.91, 64.40, 301.18°)
OKLab	oklab(34.93% 0.0089 -0.1593)
OKLCH	oklch(34.93% 0.16 273.2)
XYZ	xyz(6.1804, 3.7744, 24.8239)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25288B #8B8825

analogous

#255B8B #25288B #55258B

triadic

#25288B #8B2528 #288B25

tetradic

#25288B #8B255B #8B8825 #258B55

square

#25288B #8B255B #8B8825 #258B55

split-complementary

#25288B #8B5525 #5B8B25

monochromatic

#0B0C2A #181A5B #25288B #3236BB #585BD3

Accessibility & contrast

On white

11.97

#25288B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#25288B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25288B

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25288B	#FFFFFF	#000000	##FFFFFF
##25288B	1.00	11.97	1.76	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8E

Deuteranopia (green-blind)

#003289

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #25288b;
/* rgb */ color: rgb(37, 40, 139);
/* oklch */ color: oklch(34.9% 0.160 273.2);

Tailwind

colors: {
  custom: {
    50: '#7062ae',
    500: '#25288b',
    950: '#000000',
  },
}

SCSS

$custom: #25288b;
$custom-light: #7062ae;
$custom-dark: #000000;

JSON

{
  "hex": "#25288b",
  "rgb": {
    "r": 37,
    "g": 40,
    "b": 139
  },
  "hsl": {
    "h": 238.235,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34931,
    "c": 0.15955,
    "h": 273.2
  },
  "luminance": 0.03775
}

Semantic roles & 50–950 ramp

primary

#25288B

secondary

#B7B455

accent

#DD47E1

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #25288B

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

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