#517FF0#517FF0

#517FF0 is a light, vivid blue. Relative luminance 0.232; OKLCH L 62.2% C 0.177 H 265.0°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX#517FF0
RGBrgb(81, 127, 240)
HSLhsl(223, 84%, 63%)
HSVhsv(223, 66%, 94%)
CMYKcmyk(66.3%, 47.1%, 0%, 5.9%)
CIE-LABlab(55.30, 20.18, -61.59)
CIE-LCHlch(55.30, 64.81, 288.14°)
OKLaboklab(62.16% -0.0154 -0.1764)
OKLCHoklch(62.16% 0.177 265)
XYZxyz(26.7054, 23.2168, 85.4951)
Luminance0.2322 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#517FF0 #F0C251
analogous
#51CEF0 #517FF0 #7351F0
triadic
#517FF0 #F0517F #7FF051
tetradic
#517FF0 #F051CE #F0C251 #51F073
square
#517FF0 #F051CE #F0C251 #51F073
split-complementary
#517FF0 #F07351 #CEF051
monochromatic
#1040B7 #1956EB #517FF0 #89A8F5 #C2D2FA

Accessibility & contrast

On white

3.72
#517FF0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.64
#517FF0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FF0
5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##517FF0#FFFFFF#000000##000000
##517FF01.003.725.645.64
#FFFFFF3.721.0021.0021.00
#0000005.6421.001.001.00
##0000005.6421.001.001.00

Color blindness preview

Protanopia (red-blind)
#448CF4
Deuteranopia (green-blind)
#207EEE
Tritanopia (blue-blind)
#0099AC
Achromatopsia (no color)
#848484

Design tokens & code

CSS
--color: #517ff0;
/* rgb */ color: rgb(81, 127, 240);
/* oklch */ color: oklch(62.2% 0.177 265.0);
Tailwind
colors: {
  custom: {
    50: '#92a3f6',
    500: '#517ff0',
    950: '#000000',
  },
}
SCSS
$custom: #517ff0;
$custom-light: #92a3f6;
$custom-dark: #000000;
JSON
{
  "hex": "#517ff0",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 240
  },
  "hsl": {
    "h": 222.642,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.62164,
    "c": 0.17709,
    "h": 265
  },
  "luminance": 0.23219
}

Semantic roles & 50–950 ramp

primary
#517FF0
secondary
#EBDAB2
accent
#A105E1
background
#F9FAFF
surface
#F2F3FE
border
#CCCDD6
text
#0E0F17
muted
#7E7F85

Preview Lab

Preview with #517FF0

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

Preview Lab → · Contrast checker → · Palette generator →

#517FF0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva