#253A9B#253A9B

#253A9B is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.160 H 268.5°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#253A9B
RGB	rgb(37, 58, 155)
HSL	hsl(229, 61%, 38%)
HSV	hsv(229, 76%, 61%)
CMYK	cmyk(76.1%, 62.6%, 0%, 39.2%)
CIE-LAB	lab(28.86, 27.47, -55.19)
CIE-LCH	lch(28.86, 61.65, 296.46°)
OKLab	oklab(39.74% -0.0041 -0.1595)
OKLCH	oklch(39.74% 0.16 268.5)
XYZ	xyz(8.1904, 5.7851, 31.6890)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253A9B #9B8625

analogous

#25759B #253A9B #4B259B

triadic

#253A9B #9B253A #3A9B25

tetradic

#253A9B #9B2575 #9B8625 #259B4B

square

#253A9B #9B2575 #9B8625 #259B4B

split-complementary

#253A9B #9B4B25 #759B25

monochromatic

#0D1538 #19286A #253A9B #314CCC #6176D9

Accessibility & contrast

On white

9.73

#253A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#253A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253A9B

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253A9B	#FFFFFF	#000000	##FFFFFF
##253A9B	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9E

Deuteranopia (green-blind)

#003F99

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #253a9b;
/* rgb */ color: rgb(37, 58, 155);
/* oklch */ color: oklch(39.7% 0.160 268.5);

Tailwind

colors: {
  custom: {
    50: '#7270b9',
    500: '#253a9b',
    950: '#000000',
  },
}

SCSS

$custom: #253a9b;
$custom-light: #7270b9;
$custom-dark: #000000;

JSON

{
  "hex": "#253a9b",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 155
  },
  "hsl": {
    "h": 229.322,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.3974,
    "c": 0.15953,
    "h": 268.5
  },
  "luminance": 0.05786
}

Semantic roles & 50–950 ramp

primary

#253A9B

secondary

#BFAD5D

accent

#C843E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #253A9B

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

Preview Lab → · Contrast checker → · Palette generator →