#25308B#25308B

#25308B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.3% C 0.150 H 271.3°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#25308B
RGB	rgb(37, 48, 139)
HSL	hsl(234, 58%, 35%)
HSV	hsv(234, 73%, 55%)
CMYK	cmyk(73.4%, 65.5%, 0%, 45.5%)
CIE-LAB	lab(24.86, 28.12, -51.89)
CIE-LCH	lch(24.86, 59.02, 298.45°)
OKLab	oklab(36.35% 0.0035 -0.1499)
OKLCH	oklch(36.35% 0.15 271.3)
XYZ	xyz(6.4785, 4.3706, 24.9233)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25308B #8B8025

analogous

#25638B #25308B #4D258B

triadic

#25308B #8B2530 #308B25

tetradic

#25308B #8B2563 #8B8025 #258B4D

square

#25308B #8B2563 #8B8025 #258B4D

split-complementary

#25308B #8B4D25 #638B25

monochromatic

#0B0F2A #181F5B #25308B #3241BB #5865D3

Accessibility & contrast

On white

11.20

#25308B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#25308B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25308B

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25308B	#FFFFFF	#000000	##FFFFFF
##25308B	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#003689

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #25308b;
/* rgb */ color: rgb(37, 48, 139);
/* oklch */ color: oklch(36.3% 0.150 271.3);

Tailwind

colors: {
  custom: {
    50: '#6f68ae',
    500: '#25308b',
    950: '#000000',
  },
}

SCSS

$custom: #25308b;
$custom-light: #6f68ae;
$custom-dark: #000000;

JSON

{
  "hex": "#25308b",
  "rgb": {
    "r": 37,
    "g": 48,
    "b": 139
  },
  "hsl": {
    "h": 233.529,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.36349,
    "c": 0.14995,
    "h": 271.3
  },
  "luminance": 0.04371
}

Semantic roles & 50–950 ramp

primary

#25308B

secondary

#B7AC55

accent

#D147E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #25308B

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

Preview Lab → · Contrast checker → · Palette generator →