#5BB8CC#5BB8CC

#5BB8CC is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.3% C 0.092 H 213.7°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX#5BB8CC
RGBrgb(91, 184, 204)
HSLhsl(191, 53%, 58%)
HSVhsv(191, 55%, 80%)
CMYKcmyk(55.4%, 9.8%, 0%, 20%)
CIE-LABlab(70.08, -21.93, -18.51)
CIE-LCHlch(70.08, 28.70, 220.16°)
OKLaboklab(73.35% -0.077 -0.0512)
OKLCHoklch(73.35% 0.092 213.7)
XYZxyz(32.3496, 40.8617, 63.2973)
Luminance0.4087 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5BB8CC #CC6F5B
analogous
#5BCCA7 #5BB8CC #5B80CC
triadic
#5BB8CC #CC5BB8 #B8CC5B
tetradic
#5BB8CC #A75BCC #CC6F5B #80CC5B
square
#5BB8CC #A75BCC #CC6F5B #80CC5B
split-complementary
#5BB8CC #CC5B80 #CCA75B
monochromatic
#297484 #379DB2 #5BB8CC #8ACCDB #B8E0E9

Accessibility & contrast

On white

2.29
#5BB8CC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.17
#5BB8CC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB8CC
9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5BB8CC#FFFFFF#000000##000000
##5BB8CC1.002.299.179.17
#FFFFFF2.291.0021.0021.00
#0000009.1721.001.001.00
##0000009.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#A9B3CD
Deuteranopia (green-blind)
#98A6CC
Tritanopia (blue-blind)
#00C0BE
Achromatopsia (no color)
#ABABAB

Design tokens & code

CSS
--color: #5bb8cc;
/* rgb */ color: rgb(91, 184, 204);
/* oklch */ color: oklch(73.3% 0.092 213.7);
Tailwind
colors: {
  custom: {
    50: '#93cddb',
    500: '#5bb8cc',
    950: '#000000',
  },
}
SCSS
$custom: #5bb8cc;
$custom-light: #93cddb;
$custom-dark: #000000;
JSON
{
  "hex": "#5bb8cc",
  "rgb": {
    "r": 91,
    "g": 184,
    "b": 204
  },
  "hsl": {
    "h": 190.619,
    "s": 52.558,
    "l": 57.843
  },
  "oklch": {
    "l": 0.73348,
    "c": 0.09246,
    "h": 213.7
  },
  "luminance": 0.40865
}

Semantic roles & 50–950 ramp

primary
#5BB8CC
secondary
#D8B3AB
accent
#654CDC
background
#F9FCFD
surface
#F2F9FB
border
#CCD2D4
text
#0E1315
muted
#7E8283

Preview Lab

Preview with #5BB8CC

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

Preview Lab → · Contrast checker → · Palette generator →

#5BB8CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva