#253C8B#253C8B

#253C8B is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.134 H 267.4°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#253C8B
RGB	rgb(37, 60, 139)
HSL	hsl(226, 58%, 35%)
HSV	hsv(226, 73%, 55%)
CMYK	cmyk(73.4%, 56.8%, 0%, 45.5%)
CIE-LAB	lab(28.08, 19.94, -46.64)
CIE-LCH	lch(28.08, 50.73, 293.15°)
OKLab	oklab(38.74% -0.006 -0.1343)
OKLCH	oklch(38.74% 0.134 267.4)
XYZ	xyz(7.0374, 5.4884, 25.1096)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C8B #8B7425

analogous

#256F8B #253C8B #41258B

triadic

#253C8B #8B253C #3C8B25

tetradic

#253C8B #8B256F #8B7425 #258B41

square

#253C8B #8B256F #8B7425 #258B41

split-complementary

#253C8B #8B4125 #6F8B25

monochromatic

#0B122A #18275B #253C8B #3251BB #5874D3

Accessibility & contrast

On white

10.01

#253C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#253C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C8B

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C8B	#FFFFFF	#000000	##FFFFFF
##253C8B	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478E

Deuteranopia (green-blind)

#003E89

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253c8b;
/* rgb */ color: rgb(37, 60, 139);
/* oklch */ color: oklch(38.7% 0.134 267.4);

Tailwind

colors: {
  custom: {
    50: '#6e71ad',
    500: '#253c8b',
    950: '#000000',
  },
}

SCSS

$custom: #253c8b;
$custom-light: #6e71ad;
$custom-dark: #000000;

JSON

{
  "hex": "#253c8b",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 139
  },
  "hsl": {
    "h": 226.471,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38744,
    "c": 0.13447,
    "h": 267.4
  },
  "luminance": 0.05489
}

Semantic roles & 50–950 ramp

primary

#253C8B

secondary

#B7A155

accent

#BE47E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253C8B

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

Preview Lab → · Contrast checker → · Palette generator →