#517AE8#517AE8

#517AE8 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.6% C 0.172 H 266.0°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#517AE8
RGB	rgb(81, 122, 232)
HSL	hsl(224, 77%, 61%)
HSV	hsv(224, 65%, 91%)
CMYK	cmyk(65.1%, 47.4%, 0%, 9%)
CIE-LAB	lab(53.48, 20.49, -60.04)
CIE-LCH	lch(53.48, 63.44, 288.84°)
OKLab	oklab(60.62% -0.0119 -0.1719)
OKLCH	oklch(60.62% 0.172 266)
XYZ	xyz(24.9133, 21.4922, 79.1638)
Luminance	0.2150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517AE8 #E8BF51

analogous

#51C5E8 #517AE8 #7451E8

triadic

#517AE8 #E8517A #7AE851

tetradic

#517AE8 #E851C5 #E8BF51 #51E874

square

#517AE8 #E851C5 #E8BF51 #51E874

split-complementary

#517AE8 #E87451 #C5E851

monochromatic

#163EA8 #1D52DE #517AE8 #87A3EF #BDCDF6

Accessibility & contrast

On white

3.96

#517AE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#517AE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517AE8

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517AE8	#FFFFFF	#000000	##000000
##517AE8	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4187EC

Deuteranopia (green-blind)

#1F79E6

Tritanopia (blue-blind)

#0093A6

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517ae8;
/* rgb */ color: rgb(81, 122, 232);
/* oklch */ color: oklch(60.6% 0.172 266.0);

Tailwind

colors: {
  custom: {
    50: '#909ff0',
    500: '#517ae8',
    950: '#000000',
  },
}

SCSS

$custom: #517ae8;
$custom-light: #909ff0;
$custom-dark: #000000;

JSON

{
  "hex": "#517ae8",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 232
  },
  "hsl": {
    "h": 223.709,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.60624,
    "c": 0.17234,
    "h": 266
  },
  "luminance": 0.21495
}

Semantic roles & 50–950 ramp

primary

#517AE8

secondary

#E7D7AE

accent

#A10DD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #517AE8

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

Preview Lab → · Contrast checker → · Palette generator →