#252BA6#252BA6

#252BA6 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.2% C 0.191 H 271.0°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#252BA6
RGB	rgb(37, 43, 166)
HSL	hsl(237, 64%, 40%)
HSV	hsv(237, 78%, 65%)
CMYK	cmyk(77.7%, 74.1%, 0%, 34.9%)
CIE-LAB	lab(26.37, 41.03, -65.96)
CIE-LCH	lch(26.37, 77.68, 301.88°)
OKLab	oklab(38.25% 0.0033 -0.191)
OKLCH	oklch(38.25% 0.191 271)
XYZ	xyz(8.5074, 4.8733, 36.5613)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252BA6 #A6A025

analogous

#256CA6 #252BA6 #5F25A6

triadic

#252BA6 #A6252B #2BA625

tetradic

#252BA6 #A6256C #A6A025 #25A65F

square

#252BA6 #A6256C #A6A025 #25A65F

split-complementary

#252BA6 #A65F25 #6CA625

monochromatic

#0F1142 #1A1E74 #252BA6 #363DD2 #686EDD

Accessibility & contrast

On white

10.63

#252BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#252BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252BA6

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252BA6	#FFFFFF	#000000	##FFFFFF
##252BA6	1.00	10.63	1.97	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AA

Deuteranopia (green-blind)

#0038A4

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #252ba6;
/* rgb */ color: rgb(37, 43, 166);
/* oklch */ color: oklch(38.2% 0.191 271.0);

Tailwind

colors: {
  custom: {
    50: '#7666c2',
    500: '#252ba6',
    950: '#000000',
  },
}

SCSS

$custom: #252ba6;
$custom-light: #7666c2;
$custom-dark: #000000;

JSON

{
  "hex": "#252ba6",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 166
  },
  "hsl": {
    "h": 237.209,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38248,
    "c": 0.19101,
    "h": 271
  },
  "luminance": 0.04874
}

Semantic roles & 50–950 ramp

primary

#252BA6

secondary

#C3BF64

accent

#DF41E7

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #252BA6

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

Preview Lab → · Contrast checker → · Palette generator →