#517ACF#517ACF

#517ACF is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.0% C 0.138 H 263.3°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX#517ACF
RGBrgb(81, 122, 207)
HSLhsl(220, 57%, 56%)
HSVhsv(220, 61%, 81%)
CMYKcmyk(60.9%, 41.1%, 0%, 18.8%)
CIE-LABlab(52.03, 11.94, -48.27)
CIE-LCHlch(52.03, 49.73, 283.89°)
OKLaboklab(59.04% -0.016 -0.1374)
OKLCHoklch(59.04% 0.138 263.3)
XYZxyz(21.6115, 20.1715, 61.7740)
Luminance0.2017 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#517ACF #CFA651
analogous
#51B9CF #517ACF #6751CF
triadic
#517ACF #CF517A #7ACF51
tetradic
#517ACF #CF51B9 #CFA651 #51CF67
square
#517ACF #CF51B9 #CFA651 #51CF67
split-complementary
#517ACF #CF6751 #B9CF51
monochromatic
#244282 #315BB2 #517ACF #819FDC #B1C3E9

Accessibility & contrast

On white

4.17
#517ACF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.03
#517ACF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517ACF
5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##517ACF#FFFFFF#000000##000000
##517ACF1.004.175.035.03
#FFFFFF4.171.0021.0021.00
#0000005.0321.001.001.00
##0000005.0321.001.001.00

Color blindness preview

Protanopia (red-blind)
#5482D2
Deuteranopia (green-blind)
#4377CD
Tritanopia (blue-blind)
#008D9A
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #517acf;
/* rgb */ color: rgb(81, 122, 207);
/* oklch */ color: oklch(59.0% 0.138 263.3);
Tailwind
colors: {
  custom: {
    50: '#8ca0de',
    500: '#517acf',
    950: '#000000',
  },
}
SCSS
$custom: #517acf;
$custom-light: #8ca0de;
$custom-dark: #000000;
JSON
{
  "hex": "#517acf",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 207
  },
  "hsl": {
    "h": 220.476,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59039,
    "c": 0.1383,
    "h": 263.3
  },
  "luminance": 0.20173
}

Semantic roles & 50–950 ramp

primary
#517ACF
secondary
#D8C7A4
accent
#AE48E0
background
#F9F9FD
surface
#F1F2FB
border
#CBCCD4
text
#0D0E15
muted
#7E7E83

Preview Lab

Preview with #517ACF

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

Preview Lab → · Contrast checker → · Palette generator →

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