#37ABD9#37ABD9

#37ABD9 is a light, vivid cyan. Relative luminance 0.349; OKLCH L 69.7% C 0.120 H 229.2°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).

Color values

HEX#37ABD9
RGBrgb(55, 171, 217)
HSLhsl(197, 68%, 53%)
HSVhsv(197, 75%, 85%)
CMYKcmyk(74.7%, 21.2%, 0%, 14.9%)
CIE-LABlab(65.71, -16.90, -32.45)
CIE-LCHlch(65.71, 36.59, 242.49°)
OKLaboklab(69.71% -0.0788 -0.0912)
OKLCHoklch(69.71% 0.121 229.2)
XYZxyz(28.6577, 34.9444, 70.8668)
Luminance0.3495 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37ABD9 #D96537
analogous
#37D9B6 #37ABD9 #375AD9
triadic
#37ABD9 #D937AB #ABD937
tetradic
#37ABD9 #B637D9 #D96537 #5AD937
square
#37ABD9 #B637D9 #D96537 #5AD937
split-complementary
#37ABD9 #D9375A #D9B637
monochromatic
#18617E #2288B1 #37ABD9 #6AC1E3 #9ED6ED

Accessibility & contrast

On white

2.63
#37ABD9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.99
#37ABD9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ABD9
7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37ABD9#FFFFFF#000000##000000
##37ABD91.002.637.997.99
#FFFFFF2.631.0021.0021.00
#0000007.9921.001.001.00
##0000007.9921.001.001.00

Color blindness preview

Protanopia (red-blind)
#93A8DB
Deuteranopia (green-blind)
#7D99D8
Tritanopia (blue-blind)
#00B8BA
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #37abd9;
/* rgb */ color: rgb(55, 171, 217);
/* oklch */ color: oklch(69.7% 0.120 229.2);
Tailwind
colors: {
  custom: {
    50: '#84c4e5',
    500: '#37abd9',
    950: '#000000',
  },
}
SCSS
$custom: #37abd9;
$custom-light: #84c4e5;
$custom-dark: #000000;
JSON
{
  "hex": "#37abd9",
  "rgb": {
    "r": 55,
    "g": 171,
    "b": 217
  },
  "hsl": {
    "h": 197.037,
    "s": 68.067,
    "l": 53.333
  },
  "oklch": {
    "l": 0.69712,
    "c": 0.1205,
    "h": 229.2
  },
  "luminance": 0.34948
}

Semantic roles & 50–950 ramp

primary
#37ABD9
secondary
#D9A793
accent
#6E3DEB
background
#F8FCFE
surface
#F0F8FC
border
#CBD1D5
text
#0C1215
muted
#7D8184

Preview Lab

Preview with #37ABD9

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

Preview Lab → · Contrast checker → · Palette generator →

#37ABD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva