#253E8A#253E8A

#253E8A is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.1% C 0.130 H 266.6°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#253E8A
RGB	rgb(37, 62, 138)
HSL	hsl(225, 58%, 34%)
HSV	hsv(225, 73%, 54%)
CMYK	cmyk(73.2%, 55.1%, 0%, 45.9%)
CIE-LAB	lab(28.57, 18.17, -45.23)
CIE-LCH	lch(28.57, 48.75, 291.89°)
OKLab	oklab(39.09% -0.0078 -0.1302)
OKLCH	oklch(39.09% 0.13 266.6)
XYZ	xyz(7.0714, 5.6728, 24.7621)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E8A #8A7125

analogous

#25708A #253E8A #3F258A

triadic

#253E8A #8A253E #3E8A25

tetradic

#253E8A #8A2570 #8A7125 #258A3F

square

#253E8A #8A2570 #8A7125 #258A3F

split-complementary

#253E8A #8A3F25 #708A25

monochromatic

#0B1329 #18285A #253E8A #3254BA #5776D2

Accessibility & contrast

On white

9.84

#253E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#253E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E8A

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E8A	#FFFFFF	#000000	##FFFFFF
##253E8A	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05488D

Deuteranopia (green-blind)

#003F88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253e8a;
/* rgb */ color: rgb(37, 62, 138);
/* oklch */ color: oklch(39.1% 0.130 266.6);

Tailwind

colors: {
  custom: {
    50: '#6e72ad',
    500: '#253e8a',
    950: '#000000',
  },
}

SCSS

$custom: #253e8a;
$custom-light: #6e72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#253e8a",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 138
  },
  "hsl": {
    "h": 225.149,
    "s": 57.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39088,
    "c": 0.13039,
    "h": 266.6
  },
  "luminance": 0.05674
}

Semantic roles & 50–950 ramp

primary

#253E8A

secondary

#B79E54

accent

#BB47E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #253E8A

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

Preview Lab → · Contrast checker → · Palette generator →