#599BCC#599BCC

#599BCC is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.6% C 0.100 H 242.4°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX#599BCC
RGBrgb(89, 155, 204)
HSLhsl(206, 53%, 57%)
HSVhsv(206, 56%, 80%)
CMYKcmyk(56.4%, 24%, 0%, 20%)
CIE-LABlab(61.59, -6.82, -31.53)
CIE-LCHlch(61.59, 32.26, 257.79°)
OKLaboklab(66.57% -0.0461 -0.0883)
OKLCHoklch(66.57% 0.1 242.4)
XYZxyz(26.7363, 29.9238, 61.4820)
Luminance0.2993 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#599BCC #CC8A59
analogous
#59CCC3 #599BCC #5962CC
triadic
#599BCC #CC599B #9BCC59
tetradic
#599BCC #C359CC #CC8A59 #62CC59
square
#599BCC #C359CC #CC8A59 #62CC59
split-complementary
#599BCC #CC5962 #CCC359
monochromatic
#285C83 #367DB1 #599BCC #88B7DA #B7D3E9

Accessibility & contrast

On white

3.01
#599BCC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.99
#599BCC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #599BCC
6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##599BCC#FFFFFF#000000##000000
##599BCC1.003.016.996.99
#FFFFFF3.011.0021.0021.00
#0000006.9921.001.001.00
##0000006.9921.001.001.00

Color blindness preview

Protanopia (red-blind)
#869BCE
Deuteranopia (green-blind)
#7690CB
Tritanopia (blue-blind)
#00A7AC
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #599bcc;
/* rgb */ color: rgb(89, 155, 204);
/* oklch */ color: oklch(66.6% 0.100 242.4);
Tailwind
colors: {
  custom: {
    50: '#90b8db',
    500: '#599bcc',
    950: '#000000',
  },
}
SCSS
$custom: #599bcc;
$custom-light: #90b8db;
$custom-dark: #000000;
JSON
{
  "hex": "#599bcc",
  "rgb": {
    "r": 89,
    "g": 155,
    "b": 204
  },
  "hsl": {
    "h": 205.565,
    "s": 52.995,
    "l": 57.451
  },
  "oklch": {
    "l": 0.66565,
    "c": 0.09962,
    "h": 242.4
  },
  "luminance": 0.29926
}

Semantic roles & 50–950 ramp

primary
#599BCC
secondary
#D8BDA9
accent
#894BDC
background
#F9FBFD
surface
#F2F6FB
border
#CCD0D4
text
#0D1115
muted
#7E8083

Preview Lab

Preview with #599BCC

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

Preview Lab → · Contrast checker → · Palette generator →

#599BCC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva