#25278B#25278B

#25278B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.8% C 0.161 H 273.4°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#25278B
RGB	rgb(37, 39, 139)
HSL	hsl(239, 58%, 35%)
HSV	hsv(239, 73%, 55%)
CMYK	cmyk(73.4%, 71.9%, 0%, 45.5%)
CIE-LAB	lab(22.68, 33.97, -55.47)
CIE-LCH	lch(22.68, 65.05, 301.48°)
OKLab	oklab(34.77% 0.0095 -0.1604)
OKLCH	oklch(34.77% 0.161 273.4)
XYZ	xyz(6.1471, 3.7078, 24.8128)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25278B #8B8925

analogous

#255A8B #25278B #56258B

triadic

#25278B #8B2527 #278B25

tetradic

#25278B #8B255A #8B8925 #258B56

square

#25278B #8B255A #8B8925 #258B56

split-complementary

#25278B #8B5625 #5A8B25

monochromatic

#0B0C2A #18195B #25278B #3235BB #585AD3

Accessibility & contrast

On white

12.06

#25278B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#25278B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25278B

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25278B	#FFFFFF	#000000	##FFFFFF
##25278B	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #25278b;
/* rgb */ color: rgb(37, 39, 139);
/* oklch */ color: oklch(34.8% 0.161 273.4);

Tailwind

colors: {
  custom: {
    50: '#7062ae',
    500: '#25278b',
    950: '#000000',
  },
}

SCSS

$custom: #25278b;
$custom-light: #7062ae;
$custom-dark: #000000;

JSON

{
  "hex": "#25278b",
  "rgb": {
    "r": 37,
    "g": 39,
    "b": 139
  },
  "hsl": {
    "h": 238.824,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34765,
    "c": 0.16069,
    "h": 273.4
  },
  "luminance": 0.03708
}

Semantic roles & 50–950 ramp

primary

#25278B

secondary

#B7B555

accent

#DE47E1

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #25278B

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

Preview Lab → · Contrast checker → · Palette generator →