#253AA4#253AA4

#253AA4 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.6% C 0.172 H 268.5°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#253AA4
RGB	rgb(37, 58, 164)
HSL	hsl(230, 63%, 39%)
HSV	hsv(230, 77%, 64%)
CMYK	cmyk(77.4%, 64.6%, 0%, 35.7%)
CIE-LAB	lab(29.66, 30.87, -59.34)
CIE-LCH	lch(29.66, 66.89, 297.48°)
OKLab	oklab(40.57% -0.0043 -0.1716)
OKLCH	oklch(40.57% 0.172 268.5)
XYZ	xyz(8.9745, 6.0988, 35.8190)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253AA4 #A48F25

analogous

#257AA4 #253AA4 #5025A4

triadic

#253AA4 #A4253A #3AA425

tetradic

#253AA4 #A4257A #A48F25 #25A450

square

#253AA4 #A4257A #A48F25 #25A450

split-complementary

#253AA4 #A45025 #7AA425

monochromatic

#0E1740 #1A2872 #253AA4 #354FD1 #677ADD

Accessibility & contrast

On white

9.46

#253AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#253AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253AA4

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253AA4	#FFFFFF	#000000	##FFFFFF
##253AA4	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253aa4;
/* rgb */ color: rgb(37, 58, 164);
/* oklch */ color: oklch(40.6% 0.172 268.5);

Tailwind

colors: {
  custom: {
    50: '#7470c0',
    500: '#253aa4',
    950: '#000000',
  },
}

SCSS

$custom: #253aa4;
$custom-light: #7470c0;
$custom-dark: #000000;

JSON

{
  "hex": "#253aa4",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 164
  },
  "hsl": {
    "h": 230.079,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40573,
    "c": 0.1717,
    "h": 268.5
  },
  "luminance": 0.061
}

Semantic roles & 50–950 ramp

primary

#253AA4

secondary

#C2B362

accent

#CB42E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #253AA4

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

Preview Lab → · Contrast checker → · Palette generator →