#559DDF#559DDF

#559DDF is a light, vivid cyan. Relative luminance 0.314; OKLCH L 67.8% C 0.122 H 248.2°. Best body text is #000000 at 7.27:1 contrast (WCAG AA passes).

Color values

HEX#559DDF
RGBrgb(85, 157, 223)
HSLhsl(209, 68%, 60%)
HSVhsv(209, 62%, 87%)
CMYKcmyk(61.9%, 29.6%, 0%, 12.5%)
CIE-LABlab(62.82, -2.67, -40.20)
CIE-LCHlch(62.82, 40.29, 266.19°)
OKLaboklab(67.76% -0.0454 -0.1134)
OKLCHoklch(67.76% 0.122 248.2)
XYZxyz(29.1177, 31.3702, 74.3183)
Luminance0.3137 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#559DDF #DF9755
analogous
#55DFDC #559DDF #5558DF
triadic
#559DDF #DF559D #9DDF55
tetradic
#559DDF #DC55DF #DF9755 #58DF55
square
#559DDF #DC55DF #DF9755 #58DF55
split-complementary
#559DDF #DF5558 #DFDC55
monochromatic
#1D609C #277FD0 #559DDF #89BBE9 #BCD8F2

Accessibility & contrast

On white

2.89
#559DDF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.27
#559DDF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559DDF
7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##559DDF#FFFFFF#000000##000000
##559DDF1.002.897.277.27
#FFFFFF2.891.0021.0021.00
#0000007.2721.001.001.00
##0000007.2721.001.001.00

Color blindness preview

Protanopia (red-blind)
#809FE2
Deuteranopia (green-blind)
#6E92DE
Tritanopia (blue-blind)
#00ADB4
Achromatopsia (no color)
#989898

Design tokens & code

CSS
--color: #559ddf;
/* rgb */ color: rgb(85, 157, 223);
/* oklch */ color: oklch(67.8% 0.122 248.2);
Tailwind
colors: {
  custom: {
    50: '#91b9e9',
    500: '#559ddf',
    950: '#000000',
  },
}
SCSS
$custom: #559ddf;
$custom-light: #91b9e9;
$custom-dark: #000000;
JSON
{
  "hex": "#559ddf",
  "rgb": {
    "r": 85,
    "g": 157,
    "b": 223
  },
  "hsl": {
    "h": 208.696,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.67762,
    "c": 0.12213,
    "h": 248.2
  },
  "luminance": 0.31373
}

Semantic roles & 50–950 ramp

primary
#559DDF
secondary
#E2C7AE
accent
#6F15D0
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0E1116
muted
#7E8084

Preview Lab

Preview with #559DDF

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

Preview Lab → · Contrast checker → · Palette generator →

#559DDF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva