#253FAE#253FAE

#253FAE is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.179 H 267.5°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#253FAE
RGB	rgb(37, 63, 174)
HSL	hsl(229, 65%, 41%)
HSV	hsv(229, 79%, 68%)
CMYK	cmyk(78.7%, 63.8%, 0%, 31.8%)
CIE-LAB	lab(31.81, 31.34, -61.81)
CIE-LCH	lch(31.81, 69.30, 296.88°)
OKLab	oklab(42.44% -0.0077 -0.1788)
OKLCH	oklch(42.44% 0.179 267.5)
XYZ	xyz(10.1778, 7.0032, 40.8515)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253FAE #AE9425

analogous

#2584AE #253FAE #5025AE

triadic

#253FAE #AE253F #3FAE25

tetradic

#253FAE #AE2584 #AE9425 #25AE50

square

#253FAE #AE2584 #AE9425 #25AE50

split-complementary

#253FAE #AE5025 #84AE25

monochromatic

#101A49 #1A2D7C #253FAE #3B58D5 #6D83E0

Accessibility & contrast

On white

8.75

#253FAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#253FAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253FAE

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253FAE	#FFFFFF	#000000	##FFFFFF
##253FAE	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B2

Deuteranopia (green-blind)

#0045AC

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #253fae;
/* rgb */ color: rgb(37, 63, 174);
/* oklch */ color: oklch(42.4% 0.179 267.5);

Tailwind

colors: {
  custom: {
    50: '#7673c7',
    500: '#253fae',
    950: '#000000',
  },
}

SCSS

$custom: #253fae;
$custom-light: #7673c7;
$custom-dark: #000000;

JSON

{
  "hex": "#253fae",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 174
  },
  "hsl": {
    "h": 228.613,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42435,
    "c": 0.17899,
    "h": 267.5
  },
  "luminance": 0.07004
}

Semantic roles & 50–950 ramp

primary

#253FAE

secondary

#C6B568

accent

#C840E8

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #253FAE

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

Preview Lab → · Contrast checker → · Palette generator →