#252B99#252B99

#252B99 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.9% C 0.175 H 271.7°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#252B99
RGB	rgb(37, 43, 153)
HSL	hsl(237, 61%, 37%)
HSV	hsv(237, 76%, 60%)
CMYK	cmyk(75.8%, 71.9%, 0%, 40%)
CIE-LAB	lab(25.01, 36.47, -60.28)
CIE-LCH	lch(25.01, 70.46, 301.17°)
OKLab	oklab(36.87% 0.0052 -0.1744)
OKLCH	oklch(36.87% 0.175 271.7)
XYZ	xyz(7.3747, 4.4202, 30.5953)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B99 #999325

analogous

#256599 #252B99 #592599

triadic

#252B99 #99252B #2B9925

tetradic

#252B99 #992565 #999325 #259959

square

#252B99 #992565 #999325 #259959

split-complementary

#252B99 #995925 #659925

monochromatic

#0D0F36 #191D68 #252B99 #3139CA #6066D9

Accessibility & contrast

On white

11.15

#252B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#252B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B99

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B99	#FFFFFF	#000000	##FFFFFF
##252B99	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419C

Deuteranopia (green-blind)

#003697

Tritanopia (blue-blind)

#004A5F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #252b99;
/* rgb */ color: rgb(37, 43, 153);
/* oklch */ color: oklch(36.9% 0.175 271.7);

Tailwind

colors: {
  custom: {
    50: '#7365b8',
    500: '#252b99',
    950: '#000000',
  },
}

SCSS

$custom: #252b99;
$custom-light: #7365b8;
$custom-dark: #000000;

JSON

{
  "hex": "#252b99",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 153
  },
  "hsl": {
    "h": 236.897,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36872,
    "c": 0.17453,
    "h": 271.7
  },
  "luminance": 0.04421
}

Semantic roles & 50–950 ramp

primary

#252B99

secondary

#BEB95C

accent

#DC44E4

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #252B99

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

Preview Lab → · Contrast checker → · Palette generator →