#253EA4#253EA4

#253EA4 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.167 H 267.6°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#253EA4
RGB	rgb(37, 62, 164)
HSL	hsl(228, 63%, 39%)
HSV	hsv(228, 77%, 64%)
CMYK	cmyk(77.4%, 62.2%, 0%, 35.7%)
CIE-LAB	lab(30.68, 28.22, -57.67)
CIE-LCH	lch(30.68, 64.20, 296.08°)
OKLab	oklab(41.33% -0.0069 -0.1667)
OKLCH	oklch(41.33% 0.167 267.6)
XYZ	xyz(9.1841, 6.5179, 35.8888)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253EA4 #A48B25

analogous

#257EA4 #253EA4 #4C25A4

triadic

#253EA4 #A4253E #3EA425

tetradic

#253EA4 #A4257E #A48B25 #25A44C

square

#253EA4 #A4257E #A48B25 #25A44C

split-complementary

#253EA4 #A44C25 #7EA425

monochromatic

#0E1840 #1A2B72 #253EA4 #3554D1 #677EDD

Accessibility & contrast

On white

9.12

#253EA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#253EA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253EA4

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253EA4	#FFFFFF	#000000	##FFFFFF
##253EA4	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA7

Deuteranopia (green-blind)

#0042A2

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #253ea4;
/* rgb */ color: rgb(37, 62, 164);
/* oklch */ color: oklch(41.3% 0.167 267.6);

Tailwind

colors: {
  custom: {
    50: '#7473c0',
    500: '#253ea4',
    950: '#000000',
  },
}

SCSS

$custom: #253ea4;
$custom-light: #7473c0;
$custom-dark: #000000;

JSON

{
  "hex": "#253ea4",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 164
  },
  "hsl": {
    "h": 228.189,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41329,
    "c": 0.16683,
    "h": 267.6
  },
  "luminance": 0.06519
}

Semantic roles & 50–950 ramp

primary

#253EA4

secondary

#C2B062

accent

#C642E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #253EA4

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

Preview Lab → · Contrast checker → · Palette generator →