#252F9B#252F9B

#252F9B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.7% C 0.173 H 270.9°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#252F9B
RGB	rgb(37, 47, 155)
HSL	hsl(235, 61%, 38%)
HSV	hsv(235, 76%, 61%)
CMYK	cmyk(76.1%, 69.7%, 0%, 39.2%)
CIE-LAB	lab(26.13, 34.68, -59.66)
CIE-LCH	lch(26.13, 69.01, 300.17°)
OKLab	oklab(37.74% 0.0028 -0.1726)
OKLCH	oklch(37.74% 0.173 270.9)
XYZ	xyz(7.6938, 4.7921, 31.5235)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252F9B #9B9125

analogous

#256A9B #252F9B #56259B

triadic

#252F9B #9B252F #2F9B25

tetradic

#252F9B #9B256A #9B9125 #259B56

square

#252F9B #9B256A #9B9125 #259B56

split-complementary

#252F9B #9B5625 #6A9B25

monochromatic

#0D1138 #19206A #252F9B #313ECC #616BD9

Accessibility & contrast

On white

10.72

#252F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#252F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252F9B

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252F9B	#FFFFFF	#000000	##FFFFFF
##252F9B	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#003899

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #252f9b;
/* rgb */ color: rgb(37, 47, 155);
/* oklch */ color: oklch(37.7% 0.173 270.9);

Tailwind

colors: {
  custom: {
    50: '#7368ba',
    500: '#252f9b',
    950: '#000000',
  },
}

SCSS

$custom: #252f9b;
$custom-light: #7368ba;
$custom-dark: #000000;

JSON

{
  "hex": "#252f9b",
  "rgb": {
    "r": 37,
    "g": 47,
    "b": 155
  },
  "hsl": {
    "h": 234.915,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.3774,
    "c": 0.17267,
    "h": 270.9
  },
  "luminance": 0.04793
}

Semantic roles & 50–950 ramp

primary

#252F9B

secondary

#BFB65D

accent

#D743E5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #252F9B

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

Preview Lab → · Contrast checker → · Palette generator →