#5BB4EC#5BB4EC

#5BB4EC is a light, moderate cyan. Relative luminance 0.409; OKLCH L 73.8% C 0.118 H 238.8°. Best body text is #000000 at 9.18:1 contrast (WCAG AA passes).

Color values

HEX#5BB4EC
RGBrgb(91, 180, 236)
HSLhsl(203, 79%, 64%)
HSVhsv(203, 61%, 93%)
CMYKcmyk(61.4%, 23.7%, 0%, 7.5%)
CIE-LABlab(70.12, -10.21, -35.93)
CIE-LCHlch(70.12, 37.35, 254.13°)
OKLaboklab(73.77% -0.0611 -0.1008)
OKLCHoklch(73.77% 0.118 238.8)
XYZxyz(35.7702, 40.9193, 85.3537)
Luminance0.4092 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5BB4EC #EC935B
analogous
#5BECDB #5BB4EC #5B6CEC
triadic
#5BB4EC #EC5BB4 #B4EC5B
tetradic
#5BB4EC #DB5BEC #EC935B #6CEC5B
square
#5BB4EC #DB5BEC #EC935B #6CEC5B
split-complementary
#5BB4EC #EC5B6C #ECDB5B
monochromatic
#1579B7 #249BE6 #5BB4EC #92CDF2 #C9E6F9

Accessibility & contrast

On white

2.29
#5BB4EC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.18
#5BB4EC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4EC
9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5BB4EC#FFFFFF#000000##000000
##5BB4EC1.002.299.189.18
#FFFFFF2.291.0021.0021.00
#0000009.1821.001.001.00
##0000009.1821.001.001.00

Color blindness preview

Protanopia (red-blind)
#9AB4EF
Deuteranopia (green-blind)
#86A5EB
Tritanopia (blue-blind)
#00C2C7
Achromatopsia (no color)
#ABABAB

Design tokens & code

CSS
--color: #5bb4ec;
/* rgb */ color: rgb(91, 180, 236);
/* oklch */ color: oklch(73.8% 0.118 238.8);
Tailwind
colors: {
  custom: {
    50: '#96caf2',
    500: '#5bb4ec',
    950: '#000000',
  },
}
SCSS
$custom: #5bb4ec;
$custom-light: #96caf2;
$custom-dark: #000000;
JSON
{
  "hex": "#5bb4ec",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 236
  },
  "hsl": {
    "h": 203.172,
    "s": 79.235,
    "l": 64.118
  },
  "oklch": {
    "l": 0.73774,
    "c": 0.11786,
    "h": 238.8
  },
  "luminance": 0.40923
}

Semantic roles & 50–950 ramp

primary
#5BB4EC
secondary
#EBCCB8
accent
#5B0ADC
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0E1317
muted
#7E8285

Preview Lab

Preview with #5BB4EC

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

Preview Lab → · Contrast checker → · Palette generator →

#5BB4EC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva