#253C79#253C79

#253C79 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.108 H 265.8°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#253C79
RGB	rgb(37, 60, 121)
HSL	hsl(224, 53%, 31%)
HSV	hsv(224, 69%, 47%)
CMYK	cmyk(69.4%, 50.4%, 0%, 52.5%)
CIE-LAB	lab(26.75, 12.91, -37.55)
CIE-LCH	lch(26.75, 39.71, 288.98°)
OKLab	oklab(37.31% -0.0078 -0.1076)
OKLCH	oklch(37.31% 0.108 265.8)
XYZ	xyz(5.8288, 5.0049, 18.7443)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C79 #796225

analogous

#256679 #253C79 #382579

triadic

#253C79 #79253C #3C7925

tetradic

#253C79 #792566 #796225 #257938

square

#253C79 #792566 #796225 #257938

split-complementary

#253C79 #793825 #667925

monochromatic

#080E1B #17254A #253C79 #3353A8 #4F71C9

Accessibility & contrast

On white

10.49

#253C79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#253C79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C79

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C79	#FFFFFF	#000000	##FFFFFF
##253C79	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B437B

Deuteranopia (green-blind)

#073C78

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253c79;
/* rgb */ color: rgb(37, 60, 121);
/* oklch */ color: oklch(37.3% 0.108 265.8);

Tailwind

colors: {
  custom: {
    50: '#6a71a0',
    500: '#253c79',
    950: '#000000',
  },
}

SCSS

$custom: #253c79;
$custom-light: #6a71a0;
$custom-dark: #000000;

JSON

{
  "hex": "#253c79",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 121
  },
  "hsl": {
    "h": 223.571,
    "s": 53.165,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37309,
    "c": 0.10789,
    "h": 265.8
  },
  "luminance": 0.05006
}

Semantic roles & 50–950 ramp

primary

#253C79

secondary

#AB924E

accent

#B54BDD

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #253C79

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

Preview Lab → · Contrast checker → · Palette generator →