#252B63#252B63

#252B63 is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.8% C 0.098 H 274.8°. Best body text is #FFFFFF at 13.09:1 contrast (WCAG AA passes).

Color values

HEX	#252B63
RGB	rgb(37, 43, 99)
HSL	hsl(234, 46%, 27%)
HSV	hsv(234, 63%, 39%)
CMYK	cmyk(62.6%, 56.6%, 0%, 61.2%)
CIE-LAB	lab(20.13, 16.40, -34.08)
CIE-LCH	lch(20.13, 37.82, 295.70°)
OKLab	oklab(31.78% 0.0082 -0.0976)
OKLCH	oklch(31.78% 0.098 274.8)
XYZ	xyz(3.8782, 3.0216, 12.1808)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B63 #635D25

analogous

#254A63 #252B63 #3E2563

triadic

#252B63 #63252B #2B6325

tetradic

#252B63 #63254A #635D25 #25633E

square

#252B63 #63254A #635D25 #25633E

split-complementary

#252B63 #633E25 #4A6325

monochromatic

#080A16 #141836 #252B63 #363E90 #4853BB

Accessibility & contrast

On white

13.09

#252B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#252B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B63

13.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B63	#FFFFFF	#000000	##FFFFFF
##252B63	1.00	13.09	1.60	13.09
#FFFFFF	13.09	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#093365

Deuteranopia (green-blind)

#002E62

Tritanopia (blue-blind)

#003842

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #252b63;
/* rgb */ color: rgb(37, 43, 99);
/* oklch */ color: oklch(31.8% 0.098 274.8);

Tailwind

colors: {
  custom: {
    50: '#666490',
    500: '#252b63',
    950: '#000000',
  },
}

SCSS

$custom: #252b63;
$custom-light: #666490;
$custom-dark: #000000;

JSON

{
  "hex": "#252b63",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 99
  },
  "hsl": {
    "h": 234.194,
    "s": 45.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.31784,
    "c": 0.09795,
    "h": 274.8
  },
  "luminance": 0.03022
}

Semantic roles & 50–950 ramp

primary

#252B63

secondary

#968F4E

accent

#C953D5

background

#F6F5F8

surface

#EBEAF0

border

#C6C6CB

text

#06050C

muted

#7A797D

Preview Lab

Preview with #252B63

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

Preview Lab → · Contrast checker → · Palette generator →