#252D99#252D99

#252D99 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.2% C 0.172 H 271.4°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#252D99
RGB	rgb(37, 45, 153)
HSL	hsl(236, 61%, 37%)
HSV	hsv(236, 76%, 60%)
CMYK	cmyk(75.8%, 70.6%, 0%, 40%)
CIE-LAB	lab(25.47, 35.22, -59.53)
CIE-LCH	lch(25.47, 69.17, 300.61°)
OKLab	oklab(37.2% 0.0041 -0.1723)
OKLCH	oklch(37.2% 0.172 271.4)
XYZ	xyz(7.4492, 4.5692, 30.6202)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252D99 #999125

analogous

#256799 #252D99 #572599

triadic

#252D99 #99252D #2D9925

tetradic

#252D99 #992567 #999125 #259957

square

#252D99 #992567 #999125 #259957

split-complementary

#252D99 #995725 #679925

monochromatic

#0D1036 #191F68 #252D99 #313BCA #6068D9

Accessibility & contrast

On white

10.97

#252D99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#252D99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252D99

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252D99	#FFFFFF	#000000	##FFFFFF
##252D99	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429C

Deuteranopia (green-blind)

#003797

Tritanopia (blue-blind)

#004B5F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #252d99;
/* rgb */ color: rgb(37, 45, 153);
/* oklch */ color: oklch(37.2% 0.172 271.4);

Tailwind

colors: {
  custom: {
    50: '#7366b8',
    500: '#252d99',
    950: '#000000',
  },
}

SCSS

$custom: #252d99;
$custom-light: #7366b8;
$custom-dark: #000000;

JSON

{
  "hex": "#252d99",
  "rgb": {
    "r": 37,
    "g": 45,
    "b": 153
  },
  "hsl": {
    "h": 235.862,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37201,
    "c": 0.17231,
    "h": 271.4
  },
  "luminance": 0.0457
}

Semantic roles & 50–950 ramp

primary

#252D99

secondary

#BEB75C

accent

#D944E4

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #252D99

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

Preview Lab → · Contrast checker → · Palette generator →