#517CE0#517CE0

#517CE0 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.5% C 0.159 H 264.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX#517CE0
RGBrgb(81, 124, 224)
HSLhsl(222, 70%, 60%)
HSVhsv(222, 64%, 88%)
CMYKcmyk(63.8%, 44.6%, 0%, 12.2%)
CIE-LABlab(53.54, 16.51, -55.47)
CIE-LCHlch(53.54, 57.87, 286.58°)
OKLaboklab(60.51% -0.015 -0.1585)
OKLCHoklch(60.51% 0.159 264.6)
XYZxyz(24.0509, 21.5442, 73.3975)
Luminance0.2155 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#517CE0 #E0B551
analogous
#51C4E0 #517CE0 #6E51E0
triadic
#517CE0 #E0517C #7CE051
tetradic
#517CE0 #E051C4 #E0B551 #51E06E
square
#517CE0 #E051C4 #E0B551 #51E06E
split-complementary
#517CE0 #E06E51 #C4E051
monochromatic
#1C429B #2558CF #517CE0 #85A3E9 #B9CAF3

Accessibility & contrast

On white

3.96
#517CE0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.31
#517CE0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CE0
5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##517CE0#FFFFFF#000000##000000
##517CE01.003.965.315.31
#FFFFFF3.961.0021.0021.00
#0000005.3121.001.001.00
##0000005.3121.001.001.00

Color blindness preview

Protanopia (red-blind)
#4C87E4
Deuteranopia (green-blind)
#347ADE
Tritanopia (blue-blind)
#0093A3
Achromatopsia (no color)
#808080

Design tokens & code

CSS
--color: #517ce0;
/* rgb */ color: rgb(81, 124, 224);
/* oklch */ color: oklch(60.5% 0.159 264.6);
Tailwind
colors: {
  custom: {
    50: '#8fa1ea',
    500: '#517ce0',
    950: '#000000',
  },
}
SCSS
$custom: #517ce0;
$custom-light: #8fa1ea;
$custom-dark: #000000;
JSON
{
  "hex": "#517ce0",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 224
  },
  "hsl": {
    "h": 221.958,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60513,
    "c": 0.15916,
    "h": 264.6
  },
  "luminance": 0.21546
}

Semantic roles & 50–950 ramp

primary
#517CE0
secondary
#E2D1AB
accent
#B73BED
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0E0E16
muted
#7E7E84

Preview Lab

Preview with #517CE0

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

Preview Lab → · Contrast checker → · Palette generator →

#517CE0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva