#25378D#25378D

#25378D is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.9% C 0.144 H 269.3°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#25378D
RGB	rgb(37, 55, 141)
HSL	hsl(230, 58%, 35%)
HSV	hsv(230, 74%, 55%)
CMYK	cmyk(73.8%, 61%, 0%, 44.7%)
CIE-LAB	lab(26.87, 24.14, -49.85)
CIE-LCH	lch(26.87, 55.39, 295.84°)
OKLab	oklab(37.89% -0.0019 -0.1438)
OKLCH	oklch(37.89% 0.144 269.3)
XYZ	xyz(6.9352, 5.0481, 25.8030)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25378D #8D7B25

analogous

#256B8D #25378D #47258D

triadic

#25378D #8D2537 #378D25

tetradic

#25378D #8D256B #8D7B25 #258D47

square

#25378D #8D256B #8D7B25 #258D47

split-complementary

#25378D #8D4725 #6B8D25

monochromatic

#0C112C #18245D #25378D #324ABD #596ED3

Accessibility & contrast

On white

10.45

#25378D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#25378D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25378D

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25378D	#FFFFFF	#000000	##FFFFFF
##25378D	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004490

Deuteranopia (green-blind)

#003B8B

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #25378d;
/* rgb */ color: rgb(37, 55, 141);
/* oklch */ color: oklch(37.9% 0.144 269.3);

Tailwind

colors: {
  custom: {
    50: '#6f6daf',
    500: '#25378d',
    950: '#000000',
  },
}

SCSS

$custom: #25378d;
$custom-light: #6f6daf;
$custom-dark: #000000;

JSON

{
  "hex": "#25378d",
  "rgb": {
    "r": 37,
    "g": 55,
    "b": 141
  },
  "hsl": {
    "h": 229.615,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37889,
    "c": 0.14385,
    "h": 269.3
  },
  "luminance": 0.05049
}

Semantic roles & 50–950 ramp

primary

#25378D

secondary

#B8A756

accent

#C746E2

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #25378D

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

Preview Lab → · Contrast checker → · Palette generator →