#5590CB#5590CB

#5590CB is a light, moderate cyan. Relative luminance 0.262; OKLCH L 63.8% C 0.109 H 249.9°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX#5590CB
RGBrgb(85, 144, 203)
HSLhsl(210, 53%, 56%)
HSVhsv(210, 58%, 80%)
CMYKcmyk(58.1%, 29.1%, 0%, 20.4%)
CIE-LABlab(58.21, -1.70, -36.24)
CIE-LCHlch(58.21, 36.28, 267.31°)
OKLaboklab(63.84% -0.0374 -0.102)
OKLCHoklch(63.84% 0.109 249.9)
XYZxyz(24.4952, 26.1874, 60.2522)
Luminance0.2619 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5590CB #CB9055
analogous
#55CBCB #5590CB #5555CB
triadic
#5590CB #CB5590 #90CB55
tetradic
#5590CB #CB55CB #CB9055 #55CB55
square
#5590CB #CB55CB #CB9055 #55CB55
split-complementary
#5590CB #CB5555 #CBCB55
monochromatic
#27537F #3571AE #5590CB #84AFD9 #B3CDE8

Accessibility & contrast

On white

3.37
#5590CB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.24
#5590CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5590CB
6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5590CB#FFFFFF#000000##000000
##5590CB1.003.376.246.24
#FFFFFF3.371.0021.0021.00
#0000006.2421.001.001.00
##0000006.2421.001.001.00

Color blindness preview

Protanopia (red-blind)
#7792CE
Deuteranopia (green-blind)
#6887CA
Tritanopia (blue-blind)
#009EA5
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #5590cb;
/* rgb */ color: rgb(85, 144, 203);
/* oklch */ color: oklch(63.8% 0.109 249.9);
Tailwind
colors: {
  custom: {
    50: '#8eb0db',
    500: '#5590cb',
    950: '#000000',
  },
}
SCSS
$custom: #5590cb;
$custom-light: #8eb0db;
$custom-dark: #000000;
JSON
{
  "hex": "#5590cb",
  "rgb": {
    "r": 85,
    "g": 144,
    "b": 203
  },
  "hsl": {
    "h": 210,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.63844,
    "c": 0.10863,
    "h": 249.9
  },
  "luminance": 0.2619
}

Semantic roles & 50–950 ramp

primary
#5590CB
secondary
#D6BEA6
accent
#944BDD
background
#F9FAFD
surface
#F1F4FB
border
#CBCED4
text
#0D1015
muted
#7E7F83

Preview Lab

Preview with #5590CB

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

Preview Lab → · Contrast checker → · Palette generator →

#5590CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva