#252D8F#252D8F

#252D8F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.159 H 271.9°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#252D8F
RGB	rgb(37, 45, 143)
HSL	hsl(235, 59%, 35%)
HSV	hsv(235, 74%, 56%)
CMYK	cmyk(74.1%, 68.5%, 0%, 43.9%)
CIE-LAB	lab(24.49, 31.58, -54.98)
CIE-LCH	lch(24.49, 63.41, 299.87°)
OKLab	oklab(36.19% 0.0052 -0.159)
OKLCH	oklch(36.19% 0.159 271.9)
XYZ	xyz(6.6576, 4.2526, 26.4512)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252D8F #8F8725

analogous

#25628F #252D8F #52258F

triadic

#252D8F #8F252D #2D8F25

tetradic

#252D8F #8F2562 #8F8725 #258F52

square

#252D8F #8F2562 #8F8725 #258F52

split-complementary

#252D8F #8F5225 #628F25

monochromatic

#0C0E2E #181E5E #252D8F #323CC0 #5A63D4

Accessibility & contrast

On white

11.35

#252D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#252D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252D8F

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252D8F	#FFFFFF	#000000	##FFFFFF
##252D8F	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00358D

Tritanopia (blue-blind)

#00475A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #252d8f;
/* rgb */ color: rgb(37, 45, 143);
/* oklch */ color: oklch(36.2% 0.159 271.9);

Tailwind

colors: {
  custom: {
    50: '#7066b1',
    500: '#252d8f',
    950: '#000000',
  },
}

SCSS

$custom: #252d8f;
$custom-light: #7066b1;
$custom-dark: #000000;

JSON

{
  "hex": "#252d8f",
  "rgb": {
    "r": 37,
    "g": 45,
    "b": 143
  },
  "hsl": {
    "h": 235.472,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.36192,
    "c": 0.15907,
    "h": 271.9
  },
  "luminance": 0.04253
}

Semantic roles & 50–950 ramp

primary

#252D8F

secondary

#B9B257

accent

#D646E2

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #252D8F

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

Preview Lab → · Contrast checker → · Palette generator →