#509DD1#509DD1

#509DD1 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 66.9% C 0.109 H 240.6°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX#509DD1
RGBrgb(80, 157, 209)
HSLhsl(204, 58%, 57%)
HSVhsv(204, 62%, 82%)
CMYKcmyk(61.7%, 24.9%, 0%, 18%)
CIE-LABlab(62.02, -8.12, -33.69)
CIE-LCHlch(62.02, 34.65, 256.45°)
OKLaboklab(66.87% -0.0533 -0.0946)
OKLCHoklch(66.87% 0.109 240.6)
XYZxyz(26.8695, 30.4202, 64.7649)
Luminance0.3042 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#509DD1 #D18450
analogous
#50D1C5 #509DD1 #505DD1
triadic
#509DD1 #D1509D #9DD150
tetradic
#509DD1 #C550D1 #D18450 #5DD150
square
#509DD1 #C550D1 #D18450 #5DD150
split-complementary
#509DD1 #D1505D #D1C550
monochromatic
#235D84 #2F7FB4 #509DD1 #80B8DE #B1D3EA

Accessibility & contrast

On white

2.96
#509DD1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.08
#509DD1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #509DD1
7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##509DD1#FFFFFF#000000##000000
##509DD11.002.967.087.08
#FFFFFF2.961.0021.0021.00
#0000007.0821.001.001.00
##0000007.0821.001.001.00

Color blindness preview

Protanopia (red-blind)
#869DD3
Deuteranopia (green-blind)
#7490D0
Tritanopia (blue-blind)
#00AAAF
Achromatopsia (no color)
#969696

Design tokens & code

CSS
--color: #509dd1;
/* rgb */ color: rgb(80, 157, 209);
/* oklch */ color: oklch(66.9% 0.109 240.6);
Tailwind
colors: {
  custom: {
    50: '#8cb9df',
    500: '#509dd1',
    950: '#000000',
  },
}
SCSS
$custom: #509dd1;
$custom-light: #8cb9df;
$custom-dark: #000000;
JSON
{
  "hex": "#509dd1",
  "rgb": {
    "r": 80,
    "g": 157,
    "b": 209
  },
  "hsl": {
    "h": 204.186,
    "s": 58.371,
    "l": 56.667
  },
  "oklch": {
    "l": 0.66873,
    "c": 0.10859,
    "h": 240.6
  },
  "luminance": 0.30423
}

Semantic roles & 50–950 ramp

primary
#509DD1
secondary
#D9B9A4
accent
#8546E2
background
#F9FBFD
surface
#F1F6FB
border
#CBD0D4
text
#0D1115
muted
#7E8083

Preview Lab

Preview with #509DD1

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

Preview Lab → · Contrast checker → · Palette generator →

#509DD1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva