#25479B#25479B

#25479B is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.4% C 0.143 H 264.4°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#25479B
RGB	rgb(37, 71, 155)
HSL	hsl(223, 61%, 38%)
HSV	hsv(223, 76%, 61%)
CMYK	cmyk(76.1%, 54.2%, 0%, 39.2%)
CIE-LAB	lab(32.40, 18.67, -49.43)
CIE-LCH	lch(32.40, 52.84, 290.69°)
OKLab	oklab(42.39% -0.0138 -0.1424)
OKLCH	oklch(42.39% 0.143 264.4)
XYZ	xyz(8.9305, 7.2654, 31.9357)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25479B #9B7925

analogous

#25829B #25479B #3E259B

triadic

#25479B #9B2547 #479B25

tetradic

#25479B #9B2582 #9B7925 #259B3E

square

#25479B #9B2582 #9B7925 #259B3E

split-complementary

#25479B #9B3E25 #829B25

monochromatic

#0D1A38 #19306A #25479B #315ECC #6184D9

Accessibility & contrast

On white

8.56

#25479B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#25479B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25479B

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25479B	#FFFFFF	#000000	##FFFFFF
##25479B	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07529E

Deuteranopia (green-blind)

#004799

Tritanopia (blue-blind)

#005B6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #25479b;
/* rgb */ color: rgb(37, 71, 155);
/* oklch */ color: oklch(42.4% 0.143 264.4);

Tailwind

colors: {
  custom: {
    50: '#7179b9',
    500: '#25479b',
    950: '#000000',
  },
}

SCSS

$custom: #25479b;
$custom-light: #7179b9;
$custom-dark: #000000;

JSON

{
  "hex": "#25479b",
  "rgb": {
    "r": 37,
    "g": 71,
    "b": 155
  },
  "hsl": {
    "h": 222.712,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.42392,
    "c": 0.14303,
    "h": 264.4
  },
  "luminance": 0.07266
}

Semantic roles & 50–950 ramp

primary

#25479B

secondary

#BFA35D

accent

#B643E5

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #25479B

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

Preview Lab → · Contrast checker → · Palette generator →