#252B9F#252B9F

#252B9F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.5% C 0.182 H 271.4°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#252B9F
RGB	rgb(37, 43, 159)
HSL	hsl(237, 62%, 38%)
HSV	hsv(237, 77%, 62%)
CMYK	cmyk(76.7%, 73%, 0%, 37.6%)
CIE-LAB	lab(25.63, 38.59, -62.93)
CIE-LCH	lch(25.63, 73.82, 301.52°)
OKLab	oklab(37.5% 0.0043 -0.1822)
OKLCH	oklch(37.5% 0.182 271.4)
XYZ	xyz(7.8827, 4.6234, 33.2711)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B9F #9F9925

analogous

#25689F #252B9F #5C259F

triadic

#252B9F #9F252B #2B9F25

tetradic

#252B9F #9F2568 #9F9925 #259F5C

square

#252B9F #9F2568 #9F9925 #259F5C

split-complementary

#252B9F #9F5C25 #689F25

monochromatic

#0E103C #191E6D #252B9F #323ACF #6469DB

Accessibility & contrast

On white

10.91

#252B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#252B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B9F

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B9F	#FFFFFF	#000000	##FFFFFF
##252B9F	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A2

Deuteranopia (green-blind)

#00379D

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #252b9f;
/* rgb */ color: rgb(37, 43, 159);
/* oklch */ color: oklch(37.5% 0.182 271.4);

Tailwind

colors: {
  custom: {
    50: '#7465bd',
    500: '#252b9f',
    950: '#000000',
  },
}

SCSS

$custom: #252b9f;
$custom-light: #7465bd;
$custom-dark: #000000;

JSON

{
  "hex": "#252b9f",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 159
  },
  "hsl": {
    "h": 237.049,
    "s": 62.245,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37502,
    "c": 0.18221,
    "h": 271.4
  },
  "luminance": 0.04624
}

Semantic roles & 50–950 ramp

primary

#252B9F

secondary

#C0BC5F

accent

#DD42E5

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #252B9F

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

Preview Lab → · Contrast checker → · Palette generator →