#252B9B#252B9B

#252B9B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.1% C 0.177 H 271.6°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#252B9B
RGB	rgb(37, 43, 155)
HSL	hsl(237, 61%, 38%)
HSV	hsv(237, 76%, 61%)
CMYK	cmyk(76.1%, 72.3%, 0%, 39.2%)
CIE-LAB	lab(25.22, 37.18, -61.17)
CIE-LCH	lch(25.22, 71.58, 301.29°)
OKLab	oklab(37.08% 0.0049 -0.177)
OKLCH	oklch(37.08% 0.177 271.6)
XYZ	xyz(7.5412, 4.4868, 31.4726)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B9B #9B9525

analogous

#25669B #252B9B #5A259B

triadic

#252B9B #9B252B #2B9B25

tetradic

#252B9B #9B2566 #9B9525 #259B5A

square

#252B9B #9B2566 #9B9525 #259B5A

split-complementary

#252B9B #9B5A25 #669B25

monochromatic

#0D1038 #191D6A #252B9B #3139CC #6167D9

Accessibility & contrast

On white

11.07

#252B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#252B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B9B

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B9B	#FFFFFF	#000000	##FFFFFF
##252B9B	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419E

Deuteranopia (green-blind)

#003699

Tritanopia (blue-blind)

#004B60

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #252b9b;
/* rgb */ color: rgb(37, 43, 155);
/* oklch */ color: oklch(37.1% 0.177 271.6);

Tailwind

colors: {
  custom: {
    50: '#7365ba',
    500: '#252b9b',
    950: '#000000',
  },
}

SCSS

$custom: #252b9b;
$custom-light: #7365ba;
$custom-dark: #000000;

JSON

{
  "hex": "#252b9b",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 155
  },
  "hsl": {
    "h": 236.949,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.37081,
    "c": 0.17711,
    "h": 271.6
  },
  "luminance": 0.04488
}

Semantic roles & 50–950 ramp

primary

#252B9B

secondary

#BFBA5D

accent

#DC43E5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #252B9B

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

Preview Lab → · Contrast checker → · Palette generator →