#252F99#252F99

#252F99 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.5% C 0.170 H 271.0°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#252F99
RGB	rgb(37, 47, 153)
HSL	hsl(235, 61%, 37%)
HSV	hsv(235, 76%, 60%)
CMYK	cmyk(75.8%, 69.3%, 0%, 40%)
CIE-LAB	lab(25.94, 33.95, -58.76)
CIE-LCH	lch(25.94, 67.87, 300.02°)
OKLab	oklab(37.54% 0.003 -0.17)
OKLCH	oklch(37.54% 0.17 271)
XYZ	xyz(7.5273, 4.7255, 30.6462)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252F99 #998F25

analogous

#256999 #252F99 #552599

triadic

#252F99 #99252F #2F9925

tetradic

#252F99 #992569 #998F25 #259955

square

#252F99 #992569 #998F25 #259955

split-complementary

#252F99 #995525 #699925

monochromatic

#0D1136 #192068 #252F99 #313ECA #606AD9

Accessibility & contrast

On white

10.80

#252F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#252F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252F99

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252F99	#FFFFFF	#000000	##FFFFFF
##252F99	1.00	10.80	1.95	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439C

Deuteranopia (green-blind)

#003897

Tritanopia (blue-blind)

#004C60

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #252f99;
/* rgb */ color: rgb(37, 47, 153);
/* oklch */ color: oklch(37.5% 0.170 271.0);

Tailwind

colors: {
  custom: {
    50: '#7368b8',
    500: '#252f99',
    950: '#000000',
  },
}

SCSS

$custom: #252f99;
$custom-light: #7368b8;
$custom-dark: #000000;

JSON

{
  "hex": "#252f99",
  "rgb": {
    "r": 37,
    "g": 47,
    "b": 153
  },
  "hsl": {
    "h": 234.828,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37539,
    "c": 0.17005,
    "h": 271
  },
  "luminance": 0.04726
}

Semantic roles & 50–950 ramp

primary

#252F99

secondary

#BEB55C

accent

#D644E4

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #252F99

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

Preview Lab → · Contrast checker → · Palette generator →