#253AAF#253AAF

#253AAF is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.186 H 268.5°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#253AAF
RGB	rgb(37, 58, 175)
HSL	hsl(231, 65%, 42%)
HSV	hsv(231, 79%, 69%)
CMYK	cmyk(78.9%, 66.9%, 0%, 31.4%)
CIE-LAB	lab(30.67, 34.96, -64.28)
CIE-LCH	lch(30.67, 73.17, 298.54°)
OKLab	oklab(41.63% -0.0049 -0.1861)
OKLCH	oklch(41.63% 0.186 268.5)
XYZ	xyz(10.0112, 6.5134, 41.2787)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253AAF #AF9A25

analogous

#257FAF #253AAF #5525AF

triadic

#253AAF #AF253A #3AAF25

tetradic

#253AAF #AF257F #AF9A25 #25AF55

square

#253AAF #AF257F #AF9A25 #25AF55

split-complementary

#253AAF #AF5525 #7FAF25

monochromatic

#10194A #1A297C #253AAF #3C53D6 #6E7FE0

Accessibility & contrast

On white

9.12

#253AAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#253AAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253AAF

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253AAF	#FFFFFF	#000000	##FFFFFF
##253AAF	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB3

Deuteranopia (green-blind)

#0042AD

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #253aaf;
/* rgb */ color: rgb(37, 58, 175);
/* oklch */ color: oklch(41.6% 0.186 268.5);

Tailwind

colors: {
  custom: {
    50: '#7770c8',
    500: '#253aaf',
    950: '#000000',
  },
}

SCSS

$custom: #253aaf;
$custom-light: #7770c8;
$custom-dark: #000000;

JSON

{
  "hex": "#253aaf",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 175
  },
  "hsl": {
    "h": 230.87,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41625,
    "c": 0.18616,
    "h": 268.5
  },
  "luminance": 0.06515
}

Semantic roles & 50–950 ramp

primary

#253AAF

secondary

#C7B969

accent

#CE40E8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #253AAF

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

Preview Lab → · Contrast checker → · Palette generator →