#252B88#252B88

#252B88 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.1% C 0.152 H 272.7°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#252B88
RGB	rgb(37, 43, 136)
HSL	hsl(236, 57%, 34%)
HSV	hsv(236, 73%, 53%)
CMYK	cmyk(72.8%, 68.4%, 0%, 46.7%)
CIE-LAB	lab(23.33, 30.32, -52.53)
CIE-LCH	lch(23.33, 60.65, 299.99°)
OKLab	oklab(35.14% 0.0072 -0.1518)
OKLCH	oklch(35.14% 0.152 272.7)
XYZ	xyz(6.0693, 3.8980, 23.7203)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B88 #888225

analogous

#255D88 #252B88 #512588

triadic

#252B88 #88252B #2B8825

tetradic

#252B88 #88255D #888225 #258851

square

#252B88 #88255D #888225 #258851

split-complementary

#252B88 #885125 #5D8825

monochromatic

#0B0D28 #181C58 #252B88 #323AB8 #565ED1

Accessibility & contrast

On white

11.80

#252B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#252B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B88

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B88	#FFFFFF	#000000	##FFFFFF
##252B88	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8B

Deuteranopia (green-blind)

#003386

Tritanopia (blue-blind)

#004455

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #252b88;
/* rgb */ color: rgb(37, 43, 136);
/* oklch */ color: oklch(35.1% 0.152 272.7);

Tailwind

colors: {
  custom: {
    50: '#6f64ac',
    500: '#252b88',
    950: '#000000',
  },
}

SCSS

$custom: #252b88;
$custom-light: #6f64ac;
$custom-dark: #000000;

JSON

{
  "hex": "#252b88",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 136
  },
  "hsl": {
    "h": 236.364,
    "s": 57.225,
    "l": 33.922
  },
  "oklch": {
    "l": 0.35145,
    "c": 0.15197,
    "h": 272.7
  },
  "luminance": 0.03899
}

Semantic roles & 50–950 ramp

primary

#252B88

secondary

#B6B053

accent

#D747E0

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #252B88

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

Preview Lab → · Contrast checker → · Palette generator →