#4253AB#4253AB

#4253AB is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.7% C 0.141 H 271.8°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#4253AB
RGB	rgb(66, 83, 171)
HSL	hsl(230, 44%, 46%)
HSV	hsv(230, 61%, 67%)
CMYK	cmyk(61.4%, 51.5%, 0%, 32.9%)
CIE-LAB	lab(38.35, 21.28, -49.34)
CIE-LCH	lch(38.35, 53.74, 293.33°)
OKLab	oklab(47.65% 0.0044 -0.1413)
OKLCH	oklch(47.65% 0.141 271.8)
XYZ	xyz(12.6883, 10.2840, 39.8366)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253AB #AB9A42

analogous

#4288AB #4253AB #6642AB

triadic

#4253AB #AB4253 #53AB42

tetradic

#4253AB #AB4288 #AB9A42 #42AB66

square

#4253AB #AB4288 #AB9A42 #42AB66

split-complementary

#4253AB #AB6642 #88AB42

monochromatic

#202853 #313E7F #4253AB #6675C4 #929DD5

Accessibility & contrast

On white

6.87

#4253AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#4253AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253AB

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253AB	#FFFFFF	#000000	##FFFFFF
##4253AB	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225FAE

Deuteranopia (green-blind)

#0556A9

Tritanopia (blue-blind)

#006777

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4253ab;
/* rgb */ color: rgb(66, 83, 171);
/* oklch */ color: oklch(47.7% 0.141 271.8);

Tailwind

colors: {
  custom: {
    50: '#8083c5',
    500: '#4253ab',
    950: '#000000',
  },
}

SCSS

$custom: #4253ab;
$custom-light: #8083c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4253ab",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 171
  },
  "hsl": {
    "h": 230.286,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47655,
    "c": 0.14137,
    "h": 271.8
  },
  "luminance": 0.10285
}

Semantic roles & 50–950 ramp

primary

#4253AB

secondary

#C0B788

accent

#BF54D4

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4253AB

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

Preview Lab → · Contrast checker → · Palette generator →