#253181#253181

#253181 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.135 H 271.3°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#253181
RGB	rgb(37, 49, 129)
HSL	hsl(232, 55%, 33%)
HSV	hsv(232, 71%, 51%)
CMYK	cmyk(71.3%, 62%, 0%, 49.4%)
CIE-LAB	lab(24.24, 23.65, -46.66)
CIE-LCH	lch(24.24, 52.31, 296.89°)
OKLab	oklab(35.62% 0.003 -0.1345)
OKLCH	oklch(35.62% 0.135 271.3)
XYZ	xyz(5.8224, 4.1744, 21.2635)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253181 #817525

analogous

#255F81 #253181 #472581

triadic

#253181 #812531 #318125

tetradic

#253181 #81255F #817525 #258147

square

#253181 #81255F #817525 #258147

split-complementary

#253181 #814725 #5F8125

monochromatic

#0A0D22 #171F51 #253181 #3343B1 #5363CE

Accessibility & contrast

On white

11.44

#253181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#253181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253181

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253181	#FFFFFF	#000000	##FFFFFF
##253181	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E84

Deuteranopia (green-blind)

#00367F

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #253181;
/* rgb */ color: rgb(37, 49, 129);
/* oklch */ color: oklch(35.6% 0.135 271.3);

Tailwind

colors: {
  custom: {
    50: '#6c69a6',
    500: '#253181',
    950: '#000000',
  },
}

SCSS

$custom: #253181;
$custom-light: #6c69a6;
$custom-dark: #000000;

JSON

{
  "hex": "#253181",
  "rgb": {
    "r": 37,
    "g": 49,
    "b": 129
  },
  "hsl": {
    "h": 232.174,
    "s": 55.422,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35617,
    "c": 0.13457,
    "h": 271.3
  },
  "luminance": 0.04175
}

Semantic roles & 50–950 ramp

primary

#253181

secondary

#B2A550

accent

#CB49DF

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #253181

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

Preview Lab → · Contrast checker → · Palette generator →