#252B59#252B59

#252B59 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.0% C 0.082 H 275.0°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#252B59
RGB	rgb(37, 43, 89)
HSL	hsl(233, 41%, 25%)
HSV	hsv(233, 58%, 35%)
CMYK	cmyk(58.4%, 51.7%, 0%, 65.1%)
CIE-LAB	lab(19.40, 12.63, -28.65)
CIE-LCH	lch(19.40, 31.31, 293.80°)
OKLab	oklab(31% 0.0071 -0.0816)
OKLCH	oklch(31% 0.082 275)
XYZ	xyz(3.4294, 2.8421, 9.8171)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B59 #595325

analogous

#254559 #252B59 #392559

triadic

#252B59 #59252B #2B5925

tetradic

#252B59 #592545 #595325 #255939

square

#252B59 #592545 #595325 #255939

split-complementary

#252B59 #593925 #455925

monochromatic

#090A16 #13162E #252B59 #374084 #4955AF

Accessibility & contrast

On white

13.39

#252B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#252B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B59

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B59	#FFFFFF	#000000	##FFFFFF
##252B59	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16315B

Deuteranopia (green-blind)

#0F2D58

Tritanopia (blue-blind)

#0C353D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #252b59;
/* rgb */ color: rgb(37, 43, 89);
/* oklch */ color: oklch(31.0% 0.082 275.0);

Tailwind

colors: {
  custom: {
    50: '#646488',
    500: '#252b59',
    950: '#000000',
  },
}

SCSS

$custom: #252b59;
$custom-light: #646488;
$custom-dark: #000000;

JSON

{
  "hex": "#252b59",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 89
  },
  "hsl": {
    "h": 233.077,
    "s": 41.27,
    "l": 24.706
  },
  "oklch": {
    "l": 0.30999,
    "c": 0.08196,
    "h": 275
  },
  "luminance": 0.02842
}

Semantic roles & 50–950 ramp

primary

#252B59

secondary

#8C854D

accent

#C357D1

background

#F6F5F8

surface

#EBEAF0

border

#C6C6CB

text

#06050B

muted

#7A797C

Preview Lab

Preview with #252B59

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

Preview Lab → · Contrast checker → · Palette generator →