#253C8A#253C8A

#253C8A is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.133 H 267.4°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#253C8A
RGB	rgb(37, 60, 138)
HSL	hsl(226, 58%, 34%)
HSV	hsv(226, 73%, 54%)
CMYK	cmyk(73.2%, 56.5%, 0%, 45.9%)
CIE-LAB	lab(28.01, 19.55, -46.15)
CIE-LCH	lch(28.01, 50.12, 292.96°)
OKLab	oklab(38.66% -0.0061 -0.1329)
OKLCH	oklch(38.66% 0.133 267.4)
XYZ	xyz(6.9647, 5.4593, 24.7265)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C8A #8A7325

analogous

#256F8A #253C8A #41258A

triadic

#253C8A #8A253C #3C8A25

tetradic

#253C8A #8A256F #8A7325 #258A41

square

#253C8A #8A256F #8A7325 #258A41

split-complementary

#253C8A #8A4125 #6F8A25

monochromatic

#0B1229 #18275A #253C8A #3251BA #5773D2

Accessibility & contrast

On white

10.04

#253C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#253C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C8A

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C8A	#FFFFFF	#000000	##FFFFFF
##253C8A	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253c8a;
/* rgb */ color: rgb(37, 60, 138);
/* oklch */ color: oklch(38.7% 0.133 267.4);

Tailwind

colors: {
  custom: {
    50: '#6e71ad',
    500: '#253c8a',
    950: '#000000',
  },
}

SCSS

$custom: #253c8a;
$custom-light: #6e71ad;
$custom-dark: #000000;

JSON

{
  "hex": "#253c8a",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 138
  },
  "hsl": {
    "h": 226.337,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38661,
    "c": 0.13304,
    "h": 267.4
  },
  "luminance": 0.0546
}

Semantic roles & 50–950 ramp

primary

#253C8A

secondary

#B7A054

accent

#BE47E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253C8A

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

Preview Lab → · Contrast checker → · Palette generator →