#518FDA#518FDA

#518FDA is a light, vivid cyan. Relative luminance 0.265; OKLCH L 64.2% C 0.130 H 254.3°. Best body text is #000000 at 6.29:1 contrast (WCAG AA passes).

Color values

HEX#518FDA
RGBrgb(81, 143, 218)
HSLhsl(213, 65%, 59%)
HSVhsv(213, 63%, 85%)
CMYKcmyk(62.8%, 34.4%, 0%, 14.5%)
CIE-LABlab(58.47, 3.05, -44.27)
CIE-LCHlch(58.47, 44.38, 273.94°)
OKLaboklab(64.22% -0.0353 -0.1254)
OKLCHoklch(64.22% 0.13 254.3)
XYZxyz(25.8661, 26.4537, 70.0590)
Luminance0.2646 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#518FDA #DA9C51
analogous
#51D3DA #518FDA #5751DA
triadic
#518FDA #DA518F #8FDA51
tetradic
#518FDA #DA51D3 #DA9C51 #51DA57
square
#518FDA #DA51D3 #DA9C51 #51DA57
split-complementary
#518FDA #DA5751 #D3DA51
monochromatic
#1F5392 #2A70C4 #518FDA #83AFE5 #B6D0EF

Accessibility & contrast

On white

3.34
#518FDA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.29
#518FDA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FDA
6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##518FDA#FFFFFF#000000##000000
##518FDA1.003.346.296.29
#FFFFFF3.341.0021.0021.00
#0000006.2921.001.001.00
##0000006.2921.001.001.00

Color blindness preview

Protanopia (red-blind)
#6F94DD
Deuteranopia (green-blind)
#5C87D8
Tritanopia (blue-blind)
#00A0AA
Achromatopsia (no color)
#8D8D8D

Design tokens & code

CSS
--color: #518fda;
/* rgb */ color: rgb(81, 143, 218);
/* oklch */ color: oklch(64.2% 0.130 254.3);
Tailwind
colors: {
  custom: {
    50: '#8eafe6',
    500: '#518fda',
    950: '#000000',
  },
}
SCSS
$custom: #518fda;
$custom-light: #8eafe6;
$custom-dark: #000000;
JSON
{
  "hex": "#518fda",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 218
  },
  "hsl": {
    "h": 212.847,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.64225,
    "c": 0.13029,
    "h": 254.3
  },
  "luminance": 0.26456
}

Semantic roles & 50–950 ramp

primary
#518FDA
secondary
#DEC6A8
accent
#9C40E8
background
#F9FAFE
surface
#F2F4FC
border
#CCCED5
text
#0D1016
muted
#7E7F84

Preview Lab

Preview with #518FDA

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

Preview Lab → · Contrast checker → · Palette generator →

#518FDA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva