#252DB1#252DB1

#252DB1 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.7% C 0.203 H 270.2°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#252DB1
RGB	rgb(37, 45, 177)
HSL	hsl(237, 65%, 42%)
HSV	hsv(237, 79%, 69%)
CMYK	cmyk(79.1%, 74.6%, 0%, 30.6%)
CIE-LAB	lab(27.96, 43.64, -69.94)
CIE-LCH	lch(27.96, 82.44, 301.96°)
OKLab	oklab(39.73% 0.0008 -0.2026)
OKLCH	oklch(39.73% 0.203 270.2)
XYZ	xyz(9.6344, 5.4433, 42.1293)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252DB1 #B1A925

analogous

#2573B1 #252DB1 #6325B1

triadic

#252DB1 #B1252D #2DB125

tetradic

#252DB1 #B12573 #B1A925 #25B163

square

#252DB1 #B12573 #B1A925 #25B163

split-complementary

#252DB1 #B16325 #73B125

monochromatic

#10134C #1A207E #252DB1 #3D46D6 #6F76E1

Accessibility & contrast

On white

10.05

#252DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#252DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252DB1

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252DB1	#FFFFFF	#000000	##FFFFFF
##252DB1	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B5

Deuteranopia (green-blind)

#003BAF

Tritanopia (blue-blind)

#00546D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #252db1;
/* rgb */ color: rgb(37, 45, 177);
/* oklch */ color: oklch(39.7% 0.203 270.2);

Tailwind

colors: {
  custom: {
    50: '#7967ca',
    500: '#252db1',
    950: '#000000',
  },
}

SCSS

$custom: #252db1;
$custom-light: #7967ca;
$custom-dark: #000000;

JSON

{
  "hex": "#252db1",
  "rgb": {
    "r": 37,
    "g": 45,
    "b": 177
  },
  "hsl": {
    "h": 236.571,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.3973,
    "c": 0.20257,
    "h": 270.2
  },
  "luminance": 0.05444
}

Semantic roles & 50–950 ramp

primary

#252DB1

secondary

#C8C26A

accent

#DF3FE8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #252DB1

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

Preview Lab → · Contrast checker → · Palette generator →