#252F7B#252F7B

#252F7B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.7% C 0.129 H 272.1°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#252F7B
RGB	rgb(37, 47, 123)
HSL	hsl(233, 54%, 31%)
HSV	hsv(233, 70%, 48%)
CMYK	cmyk(69.9%, 61.8%, 0%, 51.8%)
CIE-LAB	lab(23.19, 22.74, -44.58)
CIE-LCH	lch(23.19, 50.05, 297.03°)
OKLab	oklab(34.68% 0.0048 -0.1285)
OKLCH	oklch(34.68% 0.129 272.1)
XYZ	xyz(5.3534, 3.8559, 19.1972)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252F7B #7B7125

analogous

#255A7B #252F7B #46257B

triadic

#252F7B #7B252F #2F7B25

tetradic

#252F7B #7B255A #7B7125 #257B46

square

#252F7B #7B255A #7B7125 #257B46

split-complementary

#252F7B #7B4625 #5A7B25

monochromatic

#090B1D #171D4C #252F7B #3341AA #505ECA

Accessibility & contrast

On white

11.86

#252F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#252F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252F7B

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252F7B	#FFFFFF	#000000	##FFFFFF
##252F7B	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7E

Deuteranopia (green-blind)

#00337A

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #252f7b;
/* rgb */ color: rgb(37, 47, 123);
/* oklch */ color: oklch(34.7% 0.129 272.1);

Tailwind

colors: {
  custom: {
    50: '#6b67a2',
    500: '#252f7b',
    950: '#000000',
  },
}

SCSS

$custom: #252f7b;
$custom-light: #6b67a2;
$custom-dark: #000000;

JSON

{
  "hex": "#252f7b",
  "rgb": {
    "r": 37,
    "g": 47,
    "b": 123
  },
  "hsl": {
    "h": 233.023,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34678,
    "c": 0.12855,
    "h": 272.1
  },
  "luminance": 0.03856
}

Semantic roles & 50–950 ramp

primary

#252F7B

secondary

#ADA24F

accent

#CC4BDD

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #252F7B

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

Preview Lab → · Contrast checker → · Palette generator →