#5166D6#5166D6

#5166D6 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.4% C 0.173 H 271.6°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#5166D6
RGB	rgb(81, 102, 214)
HSL	hsl(231, 62%, 58%)
HSV	hsv(231, 62%, 84%)
CMYK	cmyk(62.1%, 52.3%, 0%, 16.1%)
CIE-LAB	lab(47.11, 26.73, -60.14)
CIE-LCH	lch(47.11, 65.82, 293.96°)
OKLab	oklab(55.42% 0.005 -0.1725)
OKLCH	oklch(55.42% 0.173 271.6)
XYZ	xyz(20.2783, 16.1054, 65.6453)
Luminance	0.1611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166D6 #D6C151

analogous

#51A9D6 #5166D6 #7E51D6

triadic

#5166D6 #D65166 #66D651

tetradic

#5166D6 #D651A9 #D6C151 #51D67E

square

#5166D6 #D651A9 #D6C151 #51D67E

split-complementary

#5166D6 #D67E51 #A9D651

monochromatic

#21328C #2D43BD #5166D6 #8392E2 #B4BDED

Accessibility & contrast

On white

4.97

#5166D6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#5166D6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166D6

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166D6	#FFFFFF	#000000	##FFFFFF
##5166D6	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2076DA

Deuteranopia (green-blind)

#006AD4

Tritanopia (blue-blind)

#008094

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #5166d6;
/* rgb */ color: rgb(81, 102, 214);
/* oklch */ color: oklch(55.4% 0.173 271.6);

Tailwind

colors: {
  custom: {
    50: '#8e91e3',
    500: '#5166d6',
    950: '#000000',
  },
}

SCSS

$custom: #5166d6;
$custom-light: #8e91e3;
$custom-dark: #000000;

JSON

{
  "hex": "#5166d6",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 214
  },
  "hsl": {
    "h": 230.526,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.55423,
    "c": 0.17257,
    "h": 271.6
  },
  "luminance": 0.16107
}

Semantic roles & 50–950 ramp

primary

#5166D6

secondary

#DCD4A7

accent

#CB43E5

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0D0C15

muted

#7E7D84

Preview Lab

Preview with #5166D6

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

Preview Lab → · Contrast checker → · Palette generator →