#37B8D7#37B8D7

#37B8D7 is a light, moderate cyan. Relative luminance 0.400; OKLCH L 72.7% C 0.116 H 217.8°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX#37B8D7
RGBrgb(55, 184, 215)
HSLhsl(192, 67%, 53%)
HSVhsv(192, 74%, 84%)
CMYKcmyk(74.4%, 14.4%, 0%, 15.7%)
CIE-LABlab(69.47, -24.30, -25.56)
CIE-LCHlch(69.47, 35.27, 226.44°)
OKLaboklab(72.7% -0.092 -0.0714)
OKLCHoklch(72.7% 0.116 217.8)
XYZxyz(30.9766, 39.9958, 70.3642)
Luminance0.4000 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37B8D7 #D75637
analogous
#37D7A6 #37B8D7 #3768D7
triadic
#37B8D7 #D737B8 #B8D737
tetradic
#37B8D7 #A637D7 #D75637 #68D737
square
#37B8D7 #A637D7 #D75637 #68D737
split-complementary
#37B8D7 #D73768 #D7A637
monochromatic
#19687B #2393AE #37B8D7 #6ACAE1 #9DDCEB

Accessibility & contrast

On white

2.33
#37B8D7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.00
#37B8D7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B8D7
9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37B8D7#FFFFFF#000000##000000
##37B8D71.002.339.009.00
#FFFFFF2.331.0021.0021.00
#0000009.0021.001.001.00
##0000009.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#A4B3D9
Deuteranopia (green-blind)
#8EA3D7
Tritanopia (blue-blind)
#00C3C2
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #37b8d7;
/* rgb */ color: rgb(55, 184, 215);
/* oklch */ color: oklch(72.7% 0.116 217.8);
Tailwind
colors: {
  custom: {
    50: '#85cde3',
    500: '#37b8d7',
    950: '#000000',
  },
}
SCSS
$custom: #37b8d7;
$custom-light: #85cde3;
$custom-dark: #000000;
JSON
{
  "hex": "#37b8d7",
  "rgb": {
    "r": 55,
    "g": 184,
    "b": 215
  },
  "hsl": {
    "h": 191.625,
    "s": 66.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.72703,
    "c": 0.11642,
    "h": 217.8
  },
  "luminance": 0.4
}

Semantic roles & 50–950 ramp

primary
#37B8D7
secondary
#D7A092
accent
#5F3EEA
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #37B8D7

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

Preview Lab → · Contrast checker → · Palette generator →

#37B8D7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva