#253EAF#253EAF

#253EAF is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.181 H 267.8°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#253EAF
RGB	rgb(37, 62, 175)
HSL	hsl(229, 65%, 42%)
HSV	hsv(229, 79%, 69%)
CMYK	cmyk(78.9%, 64.6%, 0%, 31.4%)
CIE-LAB	lab(31.65, 32.37, -62.67)
CIE-LCH	lch(31.65, 70.54, 297.31°)
OKLab	oklab(42.34% -0.0071 -0.1813)
OKLCH	oklch(42.34% 0.181 267.8)
XYZ	xyz(10.2207, 6.9325, 41.3486)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253EAF #AF9625

analogous

#2583AF #253EAF #5125AF

triadic

#253EAF #AF253E #3EAF25

tetradic

#253EAF #AF2583 #AF9625 #25AF51

square

#253EAF #AF2583 #AF9625 #25AF51

split-complementary

#253EAF #AF5125 #83AF25

monochromatic

#101A4A #1A2C7C #253EAF #3C57D6 #6E83E0

Accessibility & contrast

On white

8.80

#253EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#253EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253EAF

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253EAF	#FFFFFF	#000000	##FFFFFF
##253EAF	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #253eaf;
/* rgb */ color: rgb(37, 62, 175);
/* oklch */ color: oklch(42.3% 0.181 267.8);

Tailwind

colors: {
  custom: {
    50: '#7773c8',
    500: '#253eaf',
    950: '#000000',
  },
}

SCSS

$custom: #253eaf;
$custom-light: #7773c8;
$custom-dark: #000000;

JSON

{
  "hex": "#253eaf",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 175
  },
  "hsl": {
    "h": 229.13,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42344,
    "c": 0.18149,
    "h": 267.8
  },
  "luminance": 0.06934
}

Semantic roles & 50–950 ramp

primary

#253EAF

secondary

#C7B669

accent

#CA40E8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #253EAF

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

Preview Lab → · Contrast checker → · Palette generator →