#252B58#252B58

#252B58 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.9% C 0.080 H 275.0°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#252B58
RGB	rgb(37, 43, 88)
HSL	hsl(233, 41%, 25%)
HSV	hsv(233, 58%, 35%)
CMYK	cmyk(58%, 51.1%, 0%, 65.5%)
CIE-LAB	lab(19.33, 12.26, -28.09)
CIE-LCH	lch(19.33, 30.65, 293.58°)
OKLab	oklab(30.92% 0.007 -0.08)
OKLCH	oklch(30.92% 0.08 275)
XYZ	xyz(3.3877, 2.8254, 9.5975)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#252B58 #585225

analogous

#254558 #252B58 #392558

triadic

#252B58 #58252B #2B5825

tetradic

#252B58 #582545 #585225 #255839

square

#252B58 #582545 #585225 #255839

split-complementary

#252B58 #583925 #455825

monochromatic

#090B16 #13162D #252B58 #374083 #4955AE

Accessibility & contrast

On white

13.42

#252B58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#252B58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #252B58

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##252B58	#FFFFFF	#000000	##FFFFFF
##252B58	1.00	13.42	1.57	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16315A

Deuteranopia (green-blind)

#102D57

Tritanopia (blue-blind)

#0D353D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #252b58;
/* rgb */ color: rgb(37, 43, 88);
/* oklch */ color: oklch(30.9% 0.080 275.0);

Tailwind

colors: {
  custom: {
    50: '#646487',
    500: '#252b58',
    950: '#000000',
  },
}

SCSS

$custom: #252b58;
$custom-light: #646487;
$custom-dark: #000000;

JSON

{
  "hex": "#252b58",
  "rgb": {
    "r": 37,
    "g": 43,
    "b": 88
  },
  "hsl": {
    "h": 232.941,
    "s": 40.8,
    "l": 24.51
  },
  "oklch": {
    "l": 0.30924,
    "c": 0.08032,
    "h": 275
  },
  "luminance": 0.02826
}

Semantic roles & 50–950 ramp

primary

#252B58

secondary

#8B844D

accent

#C257D1

background

#F6F5F8

surface

#EBEAEF

border

#C6C6CA

text

#06050B

muted

#7A797C

Preview Lab

Preview with #252B58

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

Preview Lab → · Contrast checker → · Palette generator →