#252C8B#252C8B

#252C8B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.6% C 0.155 H 272.3°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#252C8B
RGB	rgb(37, 44, 139)
HSL	hsl(236, 58%, 35%)
HSV	hsv(236, 73%, 55%)
CMYK	cmyk(73.4%, 68.3%, 0%, 45.5%)
CIE-LAB	lab(23.86, 30.77, -53.53)
CIE-LCH	lch(23.86, 61.74, 299.89°)
OKLab	oklab(35.62% 0.0063 -0.1547)
OKLCH	oklch(35.62% 0.155 272.3)
XYZ	xyz(6.3223, 4.0581, 24.8712)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252C8B #8B8425

analogous

#255F8B #252C8B #51258B

triadic

#252C8B #8B252C #2C8B25

tetradic

#252C8B #8B255F #8B8425 #258B51

square

#252C8B #8B255F #8B8425 #258B51

split-complementary

#252C8B #8B5125 #5F8B25

monochromatic

#0B0D2A #181D5B #252C8B #323BBB #5860D3

Accessibility & contrast

On white

11.59

#252C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#252C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252C8B

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252C8B	#FFFFFF	#000000	##FFFFFF
##252C8B	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004557

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #252c8b;
/* rgb */ color: rgb(37, 44, 139);
/* oklch */ color: oklch(35.6% 0.155 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f65ae',
    500: '#252c8b',
    950: '#000000',
  },
}

SCSS

$custom: #252c8b;
$custom-light: #6f65ae;
$custom-dark: #000000;

JSON

{
  "hex": "#252c8b",
  "rgb": {
    "r": 37,
    "g": 44,
    "b": 139
  },
  "hsl": {
    "h": 235.882,
    "s": 57.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.35619,
    "c": 0.15485,
    "h": 272.3
  },
  "luminance": 0.04059
}

Semantic roles & 50–950 ramp

primary

#252C8B

secondary

#B7B055

accent

#D747E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #252C8B

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

Preview Lab → · Contrast checker → · Palette generator →