#253C8E#253C8E

#253C8E is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.139 H 267.6°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#253C8E
RGB	rgb(37, 60, 142)
HSL	hsl(227, 59%, 35%)
HSV	hsv(227, 74%, 56%)
CMYK	cmyk(73.9%, 57.7%, 0%, 44.3%)
CIE-LAB	lab(28.32, 21.11, -48.11)
CIE-LCH	lch(28.32, 52.54, 293.69°)
OKLab	oklab(39% -0.0058 -0.1387)
OKLCH	oklch(39% 0.139 267.6)
XYZ	xyz(7.2596, 5.5773, 26.2799)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C8E #8E7725

analogous

#25718E #253C8E #42258E

triadic

#253C8E #8E253C #3C8E25

tetradic

#253C8E #8E2571 #8E7725 #258E42

square

#253C8E #8E2571 #8E7725 #258E42

split-complementary

#253C8E #8E4225 #718E25

monochromatic

#0C132D #18275D #253C8E #3251BF #5A74D4

Accessibility & contrast

On white

9.93

#253C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#253C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C8E

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C8E	#FFFFFF	#000000	##FFFFFF
##253C8E	1.00	9.93	2.12	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004891

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253c8e;
/* rgb */ color: rgb(37, 60, 142);
/* oklch */ color: oklch(39.0% 0.139 267.6);

Tailwind

colors: {
  custom: {
    50: '#6f71b0',
    500: '#253c8e',
    950: '#000000',
  },
}

SCSS

$custom: #253c8e;
$custom-light: #6f71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#253c8e",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 142
  },
  "hsl": {
    "h": 226.857,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38996,
    "c": 0.13878,
    "h": 267.6
  },
  "luminance": 0.05578
}

Semantic roles & 50–950 ramp

primary

#253C8E

secondary

#B9A356

accent

#C046E2

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253C8E

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

Preview Lab → · Contrast checker → · Palette generator →