#25378F#25378F

#25378F is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.1% C 0.147 H 269.3°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#25378F
RGB	rgb(37, 55, 143)
HSL	hsl(230, 59%, 35%)
HSV	hsv(230, 74%, 56%)
CMYK	cmyk(74.1%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(27.04, 24.91, -50.81)
CIE-LCH	lch(27.04, 56.59, 296.12°)
OKLab	oklab(38.07% -0.0019 -0.1467)
OKLCH	oklch(38.07% 0.147 269.3)
XYZ	xyz(7.0854, 5.1081, 26.5938)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25378F #8F7D25

analogous

#256C8F #25378F #48258F

triadic

#25378F #8F2537 #378F25

tetradic

#25378F #8F256C #8F7D25 #258F48

square

#25378F #8F256C #8F7D25 #258F48

split-complementary

#25378F #8F4825 #6C8F25

monochromatic

#0C122E #18245E #25378F #324AC0 #5A6FD4

Accessibility & contrast

On white

10.39

#25378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#25378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25378F

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25378F	#FFFFFF	#000000	##FFFFFF
##25378F	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003B8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #25378f;
/* rgb */ color: rgb(37, 55, 143);
/* oklch */ color: oklch(38.1% 0.147 269.3);

Tailwind

colors: {
  custom: {
    50: '#6f6db1',
    500: '#25378f',
    950: '#000000',
  },
}

SCSS

$custom: #25378f;
$custom-light: #6f6db1;
$custom-dark: #000000;

JSON

{
  "hex": "#25378f",
  "rgb": {
    "r": 37,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 229.811,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38067,
    "c": 0.14667,
    "h": 269.3
  },
  "luminance": 0.05109
}

Semantic roles & 50–950 ramp

primary

#25378F

secondary

#B9A857

accent

#C846E2

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #25378F

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

Preview Lab → · Contrast checker → · Palette generator →