#252B91#252B91

#252B91 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.0% C 0.164 H 272.2°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#252B91
RGB	rgb(37, 43, 145)
HSL	hsl(237, 59%, 36%)
HSV	hsv(237, 74%, 57%)
CMYK	cmyk(74.5%, 70.3%, 0%, 43.1%)
CIE-LAB	lab(24.21, 33.60, -56.68)
CIE-LCH	lch(24.21, 65.89, 300.66°)
OKLab	oklab(36.05% 0.0062 -0.164)
OKLCH	oklch(36.05% 0.164 272.2)
XYZ	xyz(6.7359, 4.1647, 27.2314)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B91 #918B25

analogous

#256191 #252B91 #552591

triadic

#252B91 #91252B #2B9125

tetradic

#252B91 #912561 #918B25 #259155

square

#252B91 #912561 #918B25 #259155

split-complementary

#252B91 #915525 #619125

monochromatic

#0C0E2F #191D60 #252B91 #3139C2 #5B62D5

Accessibility & contrast

On white

11.46

#252B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#252B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B91

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B91	#FFFFFF	#000000	##FFFFFF
##252B91	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F94

Deuteranopia (green-blind)

#00348F

Tritanopia (blue-blind)

#00475A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #252b91;
/* rgb */ color: rgb(37, 43, 145);
/* oklch */ color: oklch(36.0% 0.164 272.2);

Tailwind

colors: {
  custom: {
    50: '#7165b2',
    500: '#252b91',
    950: '#000000',
  },
}

SCSS

$custom: #252b91;
$custom-light: #7165b2;
$custom-dark: #000000;

JSON

{
  "hex": "#252b91",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 145
  },
  "hsl": {
    "h": 236.667,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36048,
    "c": 0.16407,
    "h": 272.2
  },
  "luminance": 0.04165
}

Semantic roles & 50–950 ramp

primary

#252B91

secondary

#BAB558

accent

#DA45E3

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #252B91

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

Preview Lab → · Contrast checker → · Palette generator →