#253D8E#253D8E

#253D8E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.137 H 267.2°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#253D8E
RGB	rgb(37, 61, 142)
HSL	hsl(226, 59%, 35%)
HSV	hsv(226, 74%, 56%)
CMYK	cmyk(73.9%, 57%, 0%, 44.3%)
CIE-LAB	lab(28.60, 20.42, -47.66)
CIE-LCH	lch(28.60, 51.85, 293.20°)
OKLab	oklab(39.21% -0.0067 -0.1373)
OKLCH	oklch(39.21% 0.137 267.2)
XYZ	xyz(7.3125, 5.6830, 26.2975)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D8E #8E7625

analogous

#25718E #253D8E #42258E

triadic

#253D8E #8E253D #3D8E25

tetradic

#253D8E #8E2571 #8E7625 #258E42

square

#253D8E #8E2571 #8E7625 #258E42

split-complementary

#253D8E #8E4225 #718E25

monochromatic

#0C132D #18285D #253D8E #3252BF #5A75D4

Accessibility & contrast

On white

9.83

#253D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#253D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D8E

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D8E	#FFFFFF	#000000	##FFFFFF
##253D8E	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004891

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253d8e;
/* rgb */ color: rgb(37, 61, 142);
/* oklch */ color: oklch(39.2% 0.137 267.2);

Tailwind

colors: {
  custom: {
    50: '#6f72b0',
    500: '#253d8e',
    950: '#000000',
  },
}

SCSS

$custom: #253d8e;
$custom-light: #6f72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#253d8e",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 142
  },
  "hsl": {
    "h": 226.286,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39206,
    "c": 0.13748,
    "h": 267.2
  },
  "luminance": 0.05684
}

Semantic roles & 50–950 ramp

primary

#253D8E

secondary

#B9A256

accent

#BE46E2

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253D8E

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

Preview Lab → · Contrast checker → · Palette generator →