#517DE8#517DE8

#517DE8 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.2% C 0.169 H 265.0°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#517DE8
RGB	rgb(81, 125, 232)
HSL	hsl(223, 77%, 61%)
HSV	hsv(223, 65%, 91%)
CMYK	cmyk(65.1%, 46.1%, 0%, 9%)
CIE-LAB	lab(54.28, 18.65, -58.76)
CIE-LCH	lch(54.28, 61.65, 287.61°)
OKLab	oklab(61.23% -0.0147 -0.1681)
OKLCH	oklch(61.23% 0.169 265)
XYZ	xyz(25.2874, 22.2404, 79.2885)
Luminance	0.2224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DE8 #E8BC51

analogous

#51C8E8 #517DE8 #7151E8

triadic

#517DE8 #E8517D #7DE851

tetradic

#517DE8 #E851C8 #E8BC51 #51E871

square

#517DE8 #E851C8 #E8BC51 #51E871

split-complementary

#517DE8 #E87151 #C8E851

monochromatic

#1641A8 #1D56DE #517DE8 #87A5EF #BDCEF6

Accessibility & contrast

On white

3.85

#517DE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#517DE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DE8

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DE8	#FFFFFF	#000000	##000000
##517DE8	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4789EC

Deuteranopia (green-blind)

#2A7BE6

Tritanopia (blue-blind)

#0096A7

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #517de8;
/* rgb */ color: rgb(81, 125, 232);
/* oklch */ color: oklch(61.2% 0.169 265.0);

Tailwind

colors: {
  custom: {
    50: '#90a2f0',
    500: '#517de8',
    950: '#000000',
  },
}

SCSS

$custom: #517de8;
$custom-light: #90a2f0;
$custom-dark: #000000;

JSON

{
  "hex": "#517de8",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 232
  },
  "hsl": {
    "h": 222.517,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.61234,
    "c": 0.16877,
    "h": 265
  },
  "luminance": 0.22243
}

Semantic roles & 50–950 ramp

primary

#517DE8

secondary

#E7D6AE

accent

#9D0DD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #517DE8

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

Preview Lab → · Contrast checker → · Palette generator →