#37B7D1#37B7D1

#37B7D1 is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.2% C 0.113 H 214.6°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX#37B7D1
RGBrgb(55, 183, 209)
HSLhsl(190, 63%, 52%)
HSVhsv(190, 74%, 82%)
CMYKcmyk(73.7%, 12.4%, 0%, 18%)
CIE-LABlab(68.95, -25.70, -23.05)
CIE-LCHlch(68.95, 34.52, 221.90°)
OKLaboklab(72.22% -0.0933 -0.0643)
OKLCHoklch(72.22% 0.113 214.6)
XYZxyz(30.0128, 39.2791, 66.3091)
Luminance0.3928 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37B7D1 #D15137
analogous
#37D19E #37B7D1 #376AD1
triadic
#37B7D1 #D137B7 #B7D137
tetradic
#37B7D1 #9E37D1 #D15137 #6AD137
square
#37B7D1 #9E37D1 #D15137 #6AD137
split-complementary
#37B7D1 #D1376A #D19E37
monochromatic
#1A6473 #268FA5 #37B7D1 #69C9DC #9BDBE8

Accessibility & contrast

On white

2.37
#37B7D1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.86
#37B7D1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B7D1
8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37B7D1#FFFFFF#000000##000000
##37B7D11.002.378.868.86
#FFFFFF2.371.0021.0021.00
#0000008.8621.001.001.00
##0000008.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#A4B1D2
Deuteranopia (green-blind)
#8FA2D1
Tritanopia (blue-blind)
#00C1BF
Achromatopsia (no color)
#A8A8A8

Design tokens & code

CSS
--color: #37b7d1;
/* rgb */ color: rgb(55, 183, 209);
/* oklch */ color: oklch(72.2% 0.113 214.6);
Tailwind
colors: {
  custom: {
    50: '#84cddf',
    500: '#37b7d1',
    950: '#000000',
  },
}
SCSS
$custom: #37b7d1;
$custom-light: #84cddf;
$custom-dark: #000000;
JSON
{
  "hex": "#37b7d1",
  "rgb": {
    "r": 55,
    "g": 183,
    "b": 209
  },
  "hsl": {
    "h": 190.13,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.72217,
    "c": 0.11334,
    "h": 214.6
  },
  "luminance": 0.39283
}

Semantic roles & 50–950 ramp

primary
#37B7D1
secondary
#D49C90
accent
#5E42E6
background
#F8FCFD
surface
#F0F9FB
border
#CBD2D4
text
#0C1315
muted
#7D8283

Preview Lab

Preview with #37B7D1

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

Preview Lab → · Contrast checker → · Palette generator →

#37B7D1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva