#5BB1E6#5BB1E6

#5BB1E6 is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.8% C 0.113 H 238.1°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX#5BB1E6
RGBrgb(91, 177, 230)
HSLhsl(203, 74%, 63%)
HSVhsv(203, 60%, 90%)
CMYKcmyk(60.4%, 23%, 0%, 9.8%)
CIE-LABlab(69.02, -10.46, -34.36)
CIE-LCHlch(69.02, 35.91, 253.07°)
OKLaboklab(72.83% -0.0599 -0.0963)
OKLCHoklch(72.83% 0.113 238.1)
XYZxyz(34.3140, 39.3783, 80.6400)
Luminance0.3938 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5BB1E6 #E6905B
analogous
#5BE6D6 #5BB1E6 #5B6BE6
triadic
#5BB1E6 #E65BB1 #B1E65B
tetradic
#5BB1E6 #D65BE6 #E6905B #6BE65B
square
#5BB1E6 #D65BE6 #E6905B #6BE65B
split-complementary
#5BB1E6 #E65B6B #E6D65B
monochromatic
#1A75AC #2698DE #5BB1E6 #90CAEE #C5E4F6

Accessibility & contrast

On white

2.37
#5BB1E6 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.88
#5BB1E6 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1E6
8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5BB1E6#FFFFFF#000000##000000
##5BB1E61.002.378.888.88
#FFFFFF2.371.0021.0021.00
#0000008.8821.001.001.00
##0000008.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#99B0E8
Deuteranopia (green-blind)
#85A2E5
Tritanopia (blue-blind)
#00BEC3
Achromatopsia (no color)
#A8A8A8

Design tokens & code

CSS
--color: #5bb1e6;
/* rgb */ color: rgb(91, 177, 230);
/* oklch */ color: oklch(72.8% 0.113 238.1);
Tailwind
colors: {
  custom: {
    50: '#95c8ee',
    500: '#5bb1e6',
    950: '#000000',
  },
}
SCSS
$custom: #5bb1e6;
$custom-light: #95c8ee;
$custom-dark: #000000;
JSON
{
  "hex": "#5bb1e6",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 230
  },
  "hsl": {
    "h": 202.878,
    "s": 73.545,
    "l": 62.941
  },
  "oklch": {
    "l": 0.72826,
    "c": 0.11341,
    "h": 238.1
  },
  "luminance": 0.39382
}

Semantic roles & 50–950 ramp

primary
#5BB1E6
secondary
#E7C8B5
accent
#5B10D6
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #5BB1E6

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

Preview Lab → · Contrast checker → · Palette generator →

#5BB1E6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva