#5166EA#5166EA

#5166EA is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.9% C 0.199 H 271.7°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#5166EA
RGB	rgb(81, 102, 234)
HSL	hsl(232, 78%, 62%)
HSV	hsv(232, 65%, 92%)
CMYK	cmyk(65.4%, 56.4%, 0%, 8.2%)
CIE-LAB	lab(48.50, 33.52, -69.21)
CIE-LCH	lch(48.50, 76.91, 295.84°)
OKLab	oklab(56.9% 0.0059 -0.1992)
OKLCH	oklch(56.9% 0.199 271.7)
XYZ	xyz(22.9910, 17.1905, 79.9324)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166EA #EAD551

analogous

#51B2EA #5166EA #8951EA

triadic

#5166EA #EA5166 #66EA51

tetradic

#5166EA #EA51B2 #EAD551 #51EA89

square

#5166EA #EA51B2 #EAD551 #51EA89

split-complementary

#5166EA #EA8951 #B2EA51

monochromatic

#1529AC #1B37E2 #5166EA #8896F1 #BEC6F7

Accessibility & contrast

On white

4.73

#5166EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#5166EA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166EA

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166EA	#FFFFFF	#000000	##FFFFFF
##5166EA	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AEE

Deuteranopia (green-blind)

#006CE7

Tritanopia (blue-blind)

#00869E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5166ea;
/* rgb */ color: rgb(81, 102, 234);
/* oklch */ color: oklch(56.9% 0.199 271.7);

Tailwind

colors: {
  custom: {
    50: '#9291f2',
    500: '#5166ea',
    950: '#000000',
  },
}

SCSS

$custom: #5166ea;
$custom-light: #9291f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5166ea",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 234
  },
  "hsl": {
    "h": 231.765,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.56902,
    "c": 0.19928,
    "h": 271.7
  },
  "luminance": 0.17193
}

Semantic roles & 50–950 ramp

primary

#5166EA

secondary

#E8E0AF

accent

#BE0BDB

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C17

muted

#7E7D85

Preview Lab

Preview with #5166EA

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

Preview Lab → · Contrast checker → · Palette generator →