#5BB3E1#5BB3E1

#5BB3E1 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 73.1% C 0.108 H 233.7°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX#5BB3E1
RGBrgb(91, 179, 225)
HSLhsl(201, 69%, 62%)
HSVhsv(201, 60%, 88%)
CMYKcmyk(59.6%, 20.4%, 0%, 11.8%)
CIE-LABlab(69.40, -13.08, -31.05)
CIE-LCHlch(69.40, 33.69, 247.15°)
OKLaboklab(73.06% -0.0637 -0.0868)
OKLCHoklch(73.06% 0.108 233.7)
XYZxyz(34.0199, 39.8973, 77.1277)
Luminance0.3990 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5BB3E1 #E1895B
analogous
#5BE1CC #5BB3E1 #5B70E1
triadic
#5BB3E1 #E15BB3 #B3E15B
tetradic
#5BB3E1 #CC5BE1 #E1895B #70E15B
square
#5BB3E1 #CC5BE1 #E1895B #70E15B
split-complementary
#5BB3E1 #E15B70 #E1CC5B
monochromatic
#1E76A4 #279BD7 #5BB3E1 #8FCBEA #C2E3F4

Accessibility & contrast

On white

2.34
#5BB3E1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.98
#5BB3E1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3E1
8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5BB3E1#FFFFFF#000000##000000
##5BB3E11.002.348.988.98
#FFFFFF2.341.0021.0021.00
#0000008.9821.001.001.00
##0000008.9821.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DB1E3
Deuteranopia (green-blind)
#8AA3E0
Tritanopia (blue-blind)
#00BFC2
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #5bb3e1;
/* rgb */ color: rgb(91, 179, 225);
/* oklch */ color: oklch(73.1% 0.108 233.7);
Tailwind
colors: {
  custom: {
    50: '#94c9ea',
    500: '#5bb3e1',
    950: '#000000',
  },
}
SCSS
$custom: #5bb3e1;
$custom-light: #94c9ea;
$custom-dark: #000000;
JSON
{
  "hex": "#5bb3e1",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 225
  },
  "hsl": {
    "h": 200.597,
    "s": 69.072,
    "l": 61.961
  },
  "oklch": {
    "l": 0.73056,
    "c": 0.10768,
    "h": 233.7
  },
  "luminance": 0.39901
}

Semantic roles & 50–950 ramp

primary
#5BB3E1
secondary
#E5C4B3
accent
#5514D1
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #5BB3E1

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

Preview Lab → · Contrast checker → · Palette generator →

#5BB3E1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva