#253F9E#253F9E

#253F9E is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.157 H 267.2°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#253F9E
RGB	rgb(37, 63, 158)
HSL	hsl(227, 62%, 38%)
HSV	hsv(227, 77%, 62%)
CMYK	cmyk(76.6%, 60.1%, 0%, 38%)
CIE-LAB	lab(30.44, 25.25, -54.44)
CIE-LCH	lch(30.44, 60.01, 294.89°)
OKLab	oklab(40.99% -0.0076 -0.1572)
OKLCH	oklch(40.99% 0.157 267.2)
XYZ	xyz(8.7099, 6.4160, 33.1205)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F9E #9E8425

analogous

#257B9E #253F9E #47259E

triadic

#253F9E #9E253F #3F9E25

tetradic

#253F9E #9E257B #9E8425 #259E47

square

#253F9E #9E257B #9E8425 #259E47

split-complementary

#253F9E #9E4725 #7B9E25

monochromatic

#0E173B #192B6C #253F9E #3153CF #637DDA

Accessibility & contrast

On white

9.20

#253F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#253F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F9E

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F9E	#FFFFFF	#000000	##FFFFFF
##253F9E	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA1

Deuteranopia (green-blind)

#00429C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #253f9e;
/* rgb */ color: rgb(37, 63, 158);
/* oklch */ color: oklch(41.0% 0.157 267.2);

Tailwind

colors: {
  custom: {
    50: '#7273bb',
    500: '#253f9e',
    950: '#000000',
  },
}

SCSS

$custom: #253f9e;
$custom-light: #7273bb;
$custom-dark: #000000;

JSON

{
  "hex": "#253f9e",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 158
  },
  "hsl": {
    "h": 227.107,
    "s": 62.051,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40989,
    "c": 0.15739,
    "h": 267.2
  },
  "luminance": 0.06417
}

Semantic roles & 50–950 ramp

primary

#253F9E

secondary

#C0AB5F

accent

#C243E5

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253F9E

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

Preview Lab → · Contrast checker → · Palette generator →