#559CFB#559CFB

#559CFB is a light, vivid cyan. Relative luminance 0.327; OKLCH L 69.0% C 0.158 H 256.4°. Best body text is #000000 at 7.53:1 contrast (WCAG AA passes).

Color values

HEX#559CFB
RGBrgb(85, 156, 251)
HSLhsl(214, 95%, 66%)
HSVhsv(214, 66%, 98%)
CMYKcmyk(66.1%, 37.8%, 0%, 1.6%)
CIE-LABlab(63.89, 7.20, -53.91)
CIE-LCHlch(63.89, 54.39, 277.61°)
OKLaboklab(69.05% -0.0371 -0.1534)
OKLCHoklch(69.05% 0.158 256.4)
XYZxyz(33.0411, 32.6699, 95.8127)
Luminance0.3267 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#559CFB #FBB455
analogous
#55EFFB #559CFB #6155FB
triadic
#559CFB #FB559C #9CFB55
tetradic
#559CFB #FB55EF #FBB455 #55FB61
square
#559CFB #FB55EF #FBB455 #55FB61
split-complementary
#559CFB #FB6155 #EFFB55
monochromatic
#055CD1 #1979FA #559CFB #91BFFC #CDE2FE

Accessibility & contrast

On white

2.79
#559CFB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.53
#559CFB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559CFB
7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##559CFB#FFFFFF#000000##000000
##559CFB1.002.797.537.53
#FFFFFF2.791.0021.0021.00
#0000007.5321.001.001.00
##0000007.5321.001.001.00

Color blindness preview

Protanopia (red-blind)
#71A3FF
Deuteranopia (green-blind)
#5994F9
Tritanopia (blue-blind)
#00B2BF
Achromatopsia (no color)
#9B9B9B

Design tokens & code

CSS
--color: #559cfb;
/* rgb */ color: rgb(85, 156, 251);
/* oklch */ color: oklch(69.0% 0.158 256.4);
Tailwind
colors: {
  custom: {
    50: '#95b8fd',
    500: '#559cfb',
    950: '#000000',
  },
}
SCSS
$custom: #559cfb;
$custom-light: #95b8fd;
$custom-dark: #000000;
JSON
{
  "hex": "#559cfb",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 251
  },
  "hsl": {
    "h": 214.337,
    "s": 95.402,
    "l": 65.882
  },
  "oklch": {
    "l": 0.69045,
    "c": 0.15782,
    "h": 256.4
  },
  "luminance": 0.32673
}

Semantic roles & 50–950 ramp

primary
#559CFB
secondary
#F1DABA
accent
#8300E6
background
#F9FBFF
surface
#F2F6FF
border
#CCD0D7
text
#0F1118
muted
#7E8086

Preview Lab

Preview with #559CFB

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

Preview Lab → · Contrast checker → · Palette generator →

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