#252FB1#252FB1

#252FB1 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.0% C 0.201 H 270.0°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#252FB1
RGB	rgb(37, 47, 177)
HSL	hsl(236, 65%, 42%)
HSV	hsv(236, 79%, 69%)
CMYK	cmyk(79.1%, 73.4%, 0%, 30.6%)
CIE-LAB	lab(28.38, 42.47, -69.25)
CIE-LCH	lch(28.38, 81.24, 301.52°)
OKLab	oklab(40.03% 0 -0.2006)
OKLCH	oklch(40.03% 0.201 270)
XYZ	xyz(9.7126, 5.5996, 42.1554)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252FB1 #B1A725

analogous

#2575B1 #252FB1 #6125B1

triadic

#252FB1 #B1252F #2FB125

tetradic

#252FB1 #B12575 #B1A725 #25B161

square

#252FB1 #B12575 #B1A725 #25B161

split-complementary

#252FB1 #B16125 #75B125

monochromatic

#10144C #1A227E #252FB1 #3D48D6 #6F78E1

Accessibility & contrast

On white

9.90

#252FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#252FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252FB1

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252FB1	#FFFFFF	#000000	##FFFFFF
##252FB1	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB5

Deuteranopia (green-blind)

#003CAF

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #252fb1;
/* rgb */ color: rgb(37, 47, 177);
/* oklch */ color: oklch(40.0% 0.201 270.0);

Tailwind

colors: {
  custom: {
    50: '#7969ca',
    500: '#252fb1',
    950: '#000000',
  },
}

SCSS

$custom: #252fb1;
$custom-light: #7969ca;
$custom-dark: #000000;

JSON

{
  "hex": "#252fb1",
  "rgb": {
    "r": 37,
    "g": 47,
    "b": 177
  },
  "hsl": {
    "h": 235.714,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40027,
    "c": 0.20058,
    "h": 270
  },
  "luminance": 0.05601
}

Semantic roles & 50–950 ramp

primary

#252FB1

secondary

#C8C16A

accent

#DC3FE8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #252FB1

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

Preview Lab → · Contrast checker → · Palette generator →