#253E9F#253E9F

#253E9F is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.9% C 0.160 H 267.5°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#253E9F
RGB	rgb(37, 62, 159)
HSL	hsl(228, 62%, 38%)
HSV	hsv(228, 77%, 62%)
CMYK	cmyk(76.7%, 61%, 0%, 37.6%)
CIE-LAB	lab(30.26, 26.31, -55.34)
CIE-LCH	lch(30.26, 61.28, 295.43°)
OKLab	oklab(40.88% -0.0069 -0.1599)
OKLCH	oklch(40.88% 0.16 267.5)
XYZ	xyz(8.7414, 6.3408, 33.5574)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E9F #9F8625

analogous

#257B9F #253E9F #49259F

triadic

#253E9F #9F253E #3E9F25

tetradic

#253E9F #9F257B #9F8625 #259F49

square

#253E9F #9F257B #9F8625 #259F49

split-complementary

#253E9F #9F4925 #7B9F25

monochromatic

#0E173C #192B6D #253E9F #3252CF #647CDB

Accessibility & contrast

On white

9.26

#253E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#253E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E9F

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E9F	#FFFFFF	#000000	##FFFFFF
##253E9F	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #253e9f;
/* rgb */ color: rgb(37, 62, 159);
/* oklch */ color: oklch(40.9% 0.160 267.5);

Tailwind

colors: {
  custom: {
    50: '#7373bc',
    500: '#253e9f',
    950: '#000000',
  },
}

SCSS

$custom: #253e9f;
$custom-light: #7373bc;
$custom-dark: #000000;

JSON

{
  "hex": "#253e9f",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 227.705,
    "s": 62.245,
    "l": 38.431
  },
  "oklch": {
    "l": 0.4088,
    "c": 0.16003,
    "h": 267.5
  },
  "luminance": 0.06342
}

Semantic roles & 50–950 ramp

primary

#253E9F

secondary

#C0AC5F

accent

#C442E5

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253E9F

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

Preview Lab → · Contrast checker → · Palette generator →