#253D99#253D99

#253D99 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.153 H 267.7°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#253D99
RGB	rgb(37, 61, 153)
HSL	hsl(228, 61%, 37%)
HSV	hsv(228, 76%, 60%)
CMYK	cmyk(75.8%, 60.1%, 0%, 40%)
CIE-LAB	lab(29.49, 24.68, -52.95)
CIE-LCH	lch(29.49, 58.42, 294.99°)
OKLab	oklab(40.15% -0.0062 -0.1529)
OKLCH	oklch(40.15% 0.153 267.7)
XYZ	xyz(8.1795, 6.0298, 30.8636)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D99 #998125

analogous

#257799 #253D99 #472599

triadic

#253D99 #99253D #3D9925

tetradic

#253D99 #992577 #998125 #259947

square

#253D99 #992577 #998125 #259947

split-complementary

#253D99 #994725 #779925

monochromatic

#0D1636 #192968 #253D99 #3151CA #6079D9

Accessibility & contrast

On white

9.52

#253D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#253D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D99

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D99	#FFFFFF	#000000	##FFFFFF
##253D99	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253d99;
/* rgb */ color: rgb(37, 61, 153);
/* oklch */ color: oklch(40.2% 0.153 267.7);

Tailwind

colors: {
  custom: {
    50: '#7172b8',
    500: '#253d99',
    950: '#000000',
  },
}

SCSS

$custom: #253d99;
$custom-light: #7172b8;
$custom-dark: #000000;

JSON

{
  "hex": "#253d99",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 153
  },
  "hsl": {
    "h": 227.586,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.4015,
    "c": 0.153,
    "h": 267.7
  },
  "luminance": 0.06031
}

Semantic roles & 50–950 ramp

primary

#253D99

secondary

#BEA95C

accent

#C344E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #253D99

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

Preview Lab → · Contrast checker → · Palette generator →