#253C8C#253C8C

#253C8C is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.136 H 267.5°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#253C8C
RGB	rgb(37, 60, 140)
HSL	hsl(227, 58%, 35%)
HSV	hsv(227, 74%, 55%)
CMYK	cmyk(73.6%, 57.1%, 0%, 45.1%)
CIE-LAB	lab(28.16, 20.33, -47.13)
CIE-LCH	lch(28.16, 51.33, 293.33°)
OKLab	oklab(38.83% -0.006 -0.1358)
OKLCH	oklch(38.83% 0.136 267.5)
XYZ	xyz(7.1108, 5.5177, 25.4961)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C8C #8C7525

analogous

#25708C #253C8C #42258C

triadic

#253C8C #8C253C #3C8C25

tetradic

#253C8C #8C2570 #8C7525 #258C42

square

#253C8C #8C2570 #8C7525 #258C42

split-complementary

#253C8C #8C4225 #708C25

monochromatic

#0B132B #18275C #253C8C #3251BC #5874D3

Accessibility & contrast

On white

9.98

#253C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#253C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C8C

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C8C	#FFFFFF	#000000	##FFFFFF
##253C8C	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478F

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253c8c;
/* rgb */ color: rgb(37, 60, 140);
/* oklch */ color: oklch(38.8% 0.136 267.5);

Tailwind

colors: {
  custom: {
    50: '#6e71ae',
    500: '#253c8c',
    950: '#000000',
  },
}

SCSS

$custom: #253c8c;
$custom-light: #6e71ae;
$custom-dark: #000000;

JSON

{
  "hex": "#253c8c",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 140
  },
  "hsl": {
    "h": 226.602,
    "s": 58.192,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38828,
    "c": 0.13592,
    "h": 267.5
  },
  "luminance": 0.05518
}

Semantic roles & 50–950 ramp

primary

#253C8C

secondary

#B8A255

accent

#BF46E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253C8C

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

Preview Lab → · Contrast checker → · Palette generator →