#517CE8#517CE8

#517CE8 is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.0% C 0.170 H 265.4°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#517CE8
RGB	rgb(81, 124, 232)
HSL	hsl(223, 77%, 61%)
HSV	hsv(223, 65%, 91%)
CMYK	cmyk(65.1%, 46.6%, 0%, 9%)
CIE-LAB	lab(54.01, 19.26, -59.19)
CIE-LCH	lch(54.01, 62.24, 288.02°)
OKLab	oklab(61.03% -0.0137 -0.1694)
OKLCH	oklch(61.03% 0.17 265.4)
XYZ	xyz(25.1614, 21.9884, 79.2465)
Luminance	0.2199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CE8 #E8BD51

analogous

#51C8E8 #517CE8 #7251E8

triadic

#517CE8 #E8517C #7CE851

tetradic

#517CE8 #E851C8 #E8BD51 #51E872

square

#517CE8 #E851C8 #E8BD51 #51E872

split-complementary

#517CE8 #E87251 #C8E851

monochromatic

#1640A8 #1D54DE #517CE8 #87A5EF #BDCDF6

Accessibility & contrast

On white

3.89

#517CE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#517CE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CE8

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CE8	#FFFFFF	#000000	##000000
##517CE8	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4588EC

Deuteranopia (green-blind)

#267BE6

Tritanopia (blue-blind)

#0095A7

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #517ce8;
/* rgb */ color: rgb(81, 124, 232);
/* oklch */ color: oklch(61.0% 0.170 265.4);

Tailwind

colors: {
  custom: {
    50: '#90a1f0',
    500: '#517ce8',
    950: '#000000',
  },
}

SCSS

$custom: #517ce8;
$custom-light: #90a1f0;
$custom-dark: #000000;

JSON

{
  "hex": "#517ce8",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 232
  },
  "hsl": {
    "h": 222.914,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.6103,
    "c": 0.16996,
    "h": 265.4
  },
  "luminance": 0.21991
}

Semantic roles & 50–950 ramp

primary

#517CE8

secondary

#E7D7AE

accent

#9F0DD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #517CE8

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

Preview Lab → · Contrast checker → · Palette generator →