#253E99#253E99

#253E99 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.4% C 0.152 H 267.4°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#253E99
RGB	rgb(37, 62, 153)
HSL	hsl(227, 61%, 37%)
HSV	hsv(227, 76%, 60%)
CMYK	cmyk(75.8%, 59.5%, 0%, 40%)
CIE-LAB	lab(29.76, 24.00, -52.51)
CIE-LCH	lch(29.76, 57.74, 294.57°)
OKLab	oklab(40.35% -0.007 -0.1516)
OKLCH	oklch(40.35% 0.152 267.4)
XYZ	xyz(8.2333, 6.1376, 30.8816)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E99 #998025

analogous

#257899 #253E99 #462599

triadic

#253E99 #99253E #3E9925

tetradic

#253E99 #992578 #998025 #259946

square

#253E99 #992578 #998025 #259946

split-complementary

#253E99 #994625 #789925

monochromatic

#0D1636 #192A68 #253E99 #3152CA #607AD9

Accessibility & contrast

On white

9.43

#253E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#253E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E99

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E99	#FFFFFF	#000000	##FFFFFF
##253E99	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9C

Deuteranopia (green-blind)

#004197

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253e99;
/* rgb */ color: rgb(37, 62, 153);
/* oklch */ color: oklch(40.4% 0.152 267.4);

Tailwind

colors: {
  custom: {
    50: '#7172b8',
    500: '#253e99',
    950: '#000000',
  },
}

SCSS

$custom: #253e99;
$custom-light: #7172b8;
$custom-dark: #000000;

JSON

{
  "hex": "#253e99",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 153
  },
  "hsl": {
    "h": 227.069,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40351,
    "c": 0.15173,
    "h": 267.4
  },
  "luminance": 0.06138
}

Semantic roles & 50–950 ramp

primary

#253E99

secondary

#BEA95C

accent

#C244E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #253E99

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

Preview Lab → · Contrast checker → · Palette generator →