#517DE0#517DE0

#517DE0 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.7% C 0.158 H 264.2°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX#517DE0
RGBrgb(81, 125, 224)
HSLhsl(222, 70%, 60%)
HSVhsv(222, 64%, 88%)
CMYKcmyk(63.8%, 44.2%, 0%, 12.2%)
CIE-LABlab(53.81, 15.90, -55.03)
CIE-LCHlch(53.81, 57.28, 286.11°)
OKLaboklab(60.72% -0.0159 -0.1572)
OKLCHoklch(60.72% 0.158 264.2)
XYZxyz(24.1768, 21.7961, 73.4395)
Luminance0.2180 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#517DE0 #E0B451
analogous
#51C5E0 #517DE0 #6C51E0
triadic
#517DE0 #E0517D #7DE051
tetradic
#517DE0 #E051C5 #E0B451 #51E06C
square
#517DE0 #E051C5 #E0B451 #51E06C
split-complementary
#517DE0 #E06C51 #C5E051
monochromatic
#1C439B #2559CF #517DE0 #85A4E9 #B9CBF3

Accessibility & contrast

On white

3.92
#517DE0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.36
#517DE0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DE0
5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##517DE0#FFFFFF#000000##000000
##517DE01.003.925.365.36
#FFFFFF3.921.0021.0021.00
#0000005.3621.001.001.00
##0000005.3621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4E88E4
Deuteranopia (green-blind)
#367ADE
Tritanopia (blue-blind)
#0094A3
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #517de0;
/* rgb */ color: rgb(81, 125, 224);
/* oklch */ color: oklch(60.7% 0.158 264.2);
Tailwind
colors: {
  custom: {
    50: '#8fa2ea',
    500: '#517de0',
    950: '#000000',
  },
}
SCSS
$custom: #517de0;
$custom-light: #8fa2ea;
$custom-dark: #000000;
JSON
{
  "hex": "#517de0",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 224
  },
  "hsl": {
    "h": 221.538,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.6072,
    "c": 0.15798,
    "h": 264.2
  },
  "luminance": 0.21798
}

Semantic roles & 50–950 ramp

primary
#517DE0
secondary
#E2D1AB
accent
#B63BED
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0E0F16
muted
#7E7E84

Preview Lab

Preview with #517DE0

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

Preview Lab → · Contrast checker → · Palette generator →

#517DE0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva