#252BB1#252BB1

#252BB1 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.4% C 0.205 H 270.4°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#252BB1
RGB	rgb(37, 43, 177)
HSL	hsl(237, 65%, 42%)
HSV	hsv(237, 79%, 69%)
CMYK	cmyk(79.1%, 75.7%, 0%, 30.6%)
CIE-LAB	lab(27.56, 44.78, -70.61)
CIE-LCH	lch(27.56, 83.61, 302.38°)
OKLab	oklab(39.44% 0.0015 -0.2045)
OKLCH	oklch(39.44% 0.205 270.4)
XYZ	xyz(9.5599, 5.2943, 42.1045)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252BB1 #B1AB25

analogous

#2571B1 #252BB1 #6525B1

triadic

#252BB1 #B1252B #2BB125

tetradic

#252BB1 #B12571 #B1AB25 #25B165

square

#252BB1 #B12571 #B1AB25 #25B165

split-complementary

#252BB1 #B16525 #71B125

monochromatic

#10124C #1A1F7E #252BB1 #3D43D6 #6F74E1

Accessibility & contrast

On white

10.20

#252BB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#252BB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252BB1

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252BB1	#FFFFFF	#000000	##FFFFFF
##252BB1	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B5

Deuteranopia (green-blind)

#003AAF

Tritanopia (blue-blind)

#00536C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #252bb1;
/* rgb */ color: rgb(37, 43, 177);
/* oklch */ color: oklch(39.4% 0.205 270.4);

Tailwind

colors: {
  custom: {
    50: '#7966ca',
    500: '#252bb1',
    950: '#000000',
  },
}

SCSS

$custom: #252bb1;
$custom-light: #7966ca;
$custom-dark: #000000;

JSON

{
  "hex": "#252bb1",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 177
  },
  "hsl": {
    "h": 237.429,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39443,
    "c": 0.20451,
    "h": 270.4
  },
  "luminance": 0.05295
}

Semantic roles & 50–950 ramp

primary

#252BB1

secondary

#C8C46A

accent

#E13FE8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #252BB1

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

Preview Lab → · Contrast checker → · Palette generator →