#253C78#253C78

#253C78 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.106 H 265.7°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#253C78
RGB	rgb(37, 60, 120)
HSL	hsl(223, 53%, 31%)
HSV	hsv(223, 69%, 47%)
CMYK	cmyk(69.2%, 50%, 0%, 52.9%)
CIE-LAB	lab(26.68, 12.52, -37.03)
CIE-LCH	lch(26.68, 39.09, 288.68°)
OKLab	oklab(37.23% -0.008 -0.1061)
OKLCH	oklch(37.23% 0.106 265.7)
XYZ	xyz(5.7678, 4.9805, 18.4230)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C78 #786125

analogous

#256578 #253C78 #372578

triadic

#253C78 #78253C #3C7825

tetradic

#253C78 #782565 #786125 #257837

square

#253C78 #782565 #786125 #257837

split-complementary

#253C78 #783725 #657825

monochromatic

#080D1A #172549 #253C78 #3353A7 #4F71C9

Accessibility & contrast

On white

10.52

#253C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#253C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C78

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C78	#FFFFFF	#000000	##FFFFFF
##253C78	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C437A

Deuteranopia (green-blind)

#093C77

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253c78;
/* rgb */ color: rgb(37, 60, 120);
/* oklch */ color: oklch(37.2% 0.106 265.7);

Tailwind

colors: {
  custom: {
    50: '#6a719f',
    500: '#253c78',
    950: '#000000',
  },
}

SCSS

$custom: #253c78;
$custom-light: #6a719f;
$custom-dark: #000000;

JSON

{
  "hex": "#253c78",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 120
  },
  "hsl": {
    "h": 223.373,
    "s": 52.866,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37233,
    "c": 0.10638,
    "h": 265.7
  },
  "luminance": 0.04981
}

Semantic roles & 50–950 ramp

primary

#253C78

secondary

#AA914E

accent

#B44CDC

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #253C78

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

Preview Lab → · Contrast checker → · Palette generator →