#5BB4E7#5BB4E7

#5BB4E7 is a light, moderate cyan. Relative luminance 0.406; OKLCH L 73.5% C 0.113 H 236.2°. Best body text is #000000 at 9.13:1 contrast (WCAG AA passes).

Color values

HEX#5BB4E7
RGBrgb(91, 180, 231)
HSLhsl(202, 74%, 63%)
HSVhsv(202, 61%, 91%)
CMYKcmyk(60.6%, 22.1%, 0%, 9.4%)
CIE-LABlab(69.92, -11.77, -33.52)
CIE-LCHlch(69.92, 35.52, 250.65°)
OKLaboklab(73.55% -0.0627 -0.0939)
OKLCHoklch(73.55% 0.113 236.2)
XYZxyz(35.0540, 40.6328, 81.5814)
Luminance0.4064 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5BB4E7 #E78E5B
analogous
#5BE7D4 #5BB4E7 #5B6EE7
triadic
#5BB4E7 #E75BB4 #B4E75B
tetradic
#5BB4E7 #D45BE7 #E78E5B #6EE75B
square
#5BB4E7 #D45BE7 #E78E5B #6EE75B
split-complementary
#5BB4E7 #E75B6E #E7D45B
monochromatic
#1978AE #269CDF #5BB4E7 #90CCEF #C6E5F7

Accessibility & contrast

On white

2.30
#5BB4E7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.13
#5BB4E7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4E7
9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5BB4E7#FFFFFF#000000##000000
##5BB4E71.002.309.139.13
#FFFFFF2.301.0021.0021.00
#0000009.1321.001.001.00
##0000009.1321.001.001.00

Color blindness preview

Protanopia (red-blind)
#9CB3E9
Deuteranopia (green-blind)
#89A5E6
Tritanopia (blue-blind)
#00C1C5
Achromatopsia (no color)
#ABABAB

Design tokens & code

CSS
--color: #5bb4e7;
/* rgb */ color: rgb(91, 180, 231);
/* oklch */ color: oklch(73.5% 0.113 236.2);
Tailwind
colors: {
  custom: {
    50: '#95caee',
    500: '#5bb4e7',
    950: '#000000',
  },
}
SCSS
$custom: #5bb4e7;
$custom-light: #95caee;
$custom-dark: #000000;
JSON
{
  "hex": "#5bb4e7",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 231
  },
  "hsl": {
    "h": 201.857,
    "s": 74.468,
    "l": 63.137
  },
  "oklch": {
    "l": 0.73548,
    "c": 0.1129,
    "h": 236.2
  },
  "luminance": 0.40636
}

Semantic roles & 50–950 ramp

primary
#5BB4E7
secondary
#E8C8B6
accent
#580FD7
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #5BB4E7

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

Preview Lab → · Contrast checker → · Palette generator →

#5BB4E7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva