#559FB4#559FB4

#559FB4 is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.3% C 0.080 H 218.5°. Best body text is #000000 at 7.00:1 contrast (WCAG AA passes).

Color values

HEX#559FB4
RGBrgb(85, 159, 180)
HSLhsl(193, 39%, 52%)
HSVhsv(193, 53%, 71%)
CMYKcmyk(52.8%, 11.7%, 0%, 29.4%)
CIE-LABlab(61.67, -17.11, -17.96)
CIE-LCHlch(61.67, 24.80, 226.39°)
OKLaboklab(66.28% -0.0625 -0.0497)
OKLCHoklch(66.28% 0.08 218.5)
XYZxyz(24.3795, 30.0207, 47.6810)
Luminance0.3002 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#559FB4 #B46A55
analogous
#55B49A #559FB4 #5570B4
triadic
#559FB4 #B4559F #9FB455
tetradic
#559FB4 #9A55B4 #B46A55 #70B455
square
#559FB4 #9A55B4 #B46A55 #70B455
split-complementary
#559FB4 #B45570 #B49A55
monochromatic
#2C5763 #3E7C8D #559FB4 #7FB7C7 #AACFD9

Accessibility & contrast

On white

3.00
#559FB4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

7.00
#559FB4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559FB4
7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##559FB4#FFFFFF#000000##000000
##559FB41.003.007.007.00
#FFFFFF3.001.0021.0021.00
#0000007.0021.001.001.00
##0000007.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#919BB5
Deuteranopia (green-blind)
#8390B4
Tritanopia (blue-blind)
#12A6A6
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #559fb4;
/* rgb */ color: rgb(85, 159, 180);
/* oklch */ color: oklch(66.3% 0.080 218.5);
Tailwind
colors: {
  custom: {
    50: '#8cbbca',
    500: '#559fb4',
    950: '#000000',
  },
}
SCSS
$custom: #559fb4;
$custom-light: #8cbbca;
$custom-dark: #000000;
JSON
{
  "hex": "#559fb4",
  "rgb": {
    "r": 85,
    "g": 159,
    "b": 180
  },
  "hsl": {
    "h": 193.263,
    "s": 38.776,
    "l": 51.961
  },
  "oklch": {
    "l": 0.66282,
    "c": 0.07986,
    "h": 218.5
  },
  "luminance": 0.30023
}

Semantic roles & 50–950 ramp

primary
#559FB4
secondary
#C7A79E
accent
#7359CF
background
#F8FBFC
surface
#F0F6F8
border
#CBD0D1
text
#0D1213
muted
#7D8182

Preview Lab

Preview with #559FB4

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

Preview Lab → · Contrast checker → · Palette generator →

#559FB4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva