#253D79#253D79

#253D79 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.107 H 265.2°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#253D79
RGB	rgb(37, 61, 121)
HSL	hsl(223, 53%, 31%)
HSV	hsv(223, 69%, 47%)
CMYK	cmyk(69.4%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(27.05, 12.22, -37.07)
CIE-LCH	lch(27.05, 39.03, 288.24°)
OKLab	oklab(37.54% -0.0088 -0.1062)
OKLCH	oklch(37.54% 0.107 265.2)
XYZ	xyz(5.8817, 5.1107, 18.7620)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D79 #796125

analogous

#256779 #253D79 #372579

triadic

#253D79 #79253D #3D7925

tetradic

#253D79 #792567 #796125 #257937

square

#253D79 #792567 #796125 #257937

split-complementary

#253D79 #793725 #677925

monochromatic

#080E1B #17254A #253D79 #3355A8 #4F72C9

Accessibility & contrast

On white

10.38

#253D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#253D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D79

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D79	#FFFFFF	#000000	##FFFFFF
##253D79	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E447B

Deuteranopia (green-blind)

#0B3C78

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253d79;
/* rgb */ color: rgb(37, 61, 121);
/* oklch */ color: oklch(37.5% 0.107 265.2);

Tailwind

colors: {
  custom: {
    50: '#6a72a0',
    500: '#253d79',
    950: '#000000',
  },
}

SCSS

$custom: #253d79;
$custom-light: #6a72a0;
$custom-dark: #000000;

JSON

{
  "hex": "#253d79",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 222.857,
    "s": 53.165,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37537,
    "c": 0.10655,
    "h": 265.2
  },
  "luminance": 0.05111
}

Semantic roles & 50–950 ramp

primary

#253D79

secondary

#AB914E

accent

#B34BDD

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #253D79

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

Preview Lab → · Contrast checker → · Palette generator →