#37AAC4#37AAC4

#37AAC4 is a light, moderate cyan. Relative luminance 0.335; OKLCH L 68.6% C 0.106 H 216.2°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX#37AAC4
RGBrgb(55, 170, 196)
HSLhsl(191, 56%, 49%)
HSVhsv(191, 72%, 77%)
CMYKcmyk(71.9%, 13.3%, 0%, 23.1%)
CIE-LABlab(64.60, -23.21, -22.53)
CIE-LCHlch(64.60, 32.35, 224.15°)
OKLaboklab(68.56% -0.0857 -0.0628)
OKLCHoklch(68.56% 0.106 216.2)
XYZxyz(25.9099, 33.5442, 57.3230)
Luminance0.3355 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37AAC4 #C45137
analogous
#37C498 #37AAC4 #3764C4
triadic
#37AAC4 #C437AA #AAC437
tetradic
#37AAC4 #9837C4 #C45137 #64C437
square
#37AAC4 #9837C4 #C45137 #64C437
split-complementary
#37AAC4 #C43764 #C49837
monochromatic
#1C5764 #2A8194 #37AAC4 #65BFD4 #94D3E1

Accessibility & contrast

On white

2.72
#37AAC4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.71
#37AAC4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AAC4
7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37AAC4#FFFFFF#000000##000000
##37AAC41.002.727.717.71
#FFFFFF2.721.0021.0021.00
#0000007.7121.001.001.00
##0000007.7121.001.001.00

Color blindness preview

Protanopia (red-blind)
#98A5C5
Deuteranopia (green-blind)
#8596C4
Tritanopia (blue-blind)
#00B3B2
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #37aac4;
/* rgb */ color: rgb(55, 170, 196);
/* oklch */ color: oklch(68.6% 0.106 216.2);
Tailwind
colors: {
  custom: {
    50: '#81c3d6',
    500: '#37aac4',
    950: '#000000',
  },
}
SCSS
$custom: #37aac4;
$custom-light: #81c3d6;
$custom-dark: #000000;
JSON
{
  "hex": "#37aac4",
  "rgb": {
    "r": 55,
    "g": 170,
    "b": 196
  },
  "hsl": {
    "h": 191.064,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.68558,
    "c": 0.10629,
    "h": 216.2
  },
  "luminance": 0.33547
}

Semantic roles & 50–950 ramp

primary
#37AAC4
secondary
#CC978B
accent
#6448DF
background
#F8FCFD
surface
#F0F8FA
border
#CBD1D3
text
#0C1214
muted
#7D8183

Preview Lab

Preview with #37AAC4

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

Preview Lab → · Contrast checker → · Palette generator →

#37AAC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva