#37AAC5#37AAC5

#37AAC5 is a light, moderate cyan. Relative luminance 0.336; OKLCH L 68.6% C 0.107 H 217.0°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX#37AAC5
RGBrgb(55, 170, 197)
HSLhsl(191, 56%, 49%)
HSVhsv(191, 72%, 77%)
CMYKcmyk(72.1%, 13.7%, 0%, 22.7%)
CIE-LABlab(64.64, -22.89, -23.03)
CIE-LCHlch(64.64, 32.47, 225.17°)
OKLaboklab(68.6% -0.0853 -0.0642)
OKLCHoklch(68.6% 0.107 217)
XYZxyz(26.0241, 33.5899, 57.9244)
Luminance0.3359 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37AAC5 #C55237
analogous
#37C599 #37AAC5 #3763C5
triadic
#37AAC5 #C537AA #AAC537
tetradic
#37AAC5 #9937C5 #C55237 #63C537
square
#37AAC5 #9937C5 #C55237 #63C537
split-complementary
#37AAC5 #C53763 #C59937
monochromatic
#1C5765 #2A8195 #37AAC5 #65BFD4 #95D3E1

Accessibility & contrast

On white

2.72
#37AAC5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.72
#37AAC5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AAC5
7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37AAC5#FFFFFF#000000##000000
##37AAC51.002.727.727.72
#FFFFFF2.721.0021.0021.00
#0000007.7221.001.001.00
##0000007.7221.001.001.00

Color blindness preview

Protanopia (red-blind)
#98A5C6
Deuteranopia (green-blind)
#8597C5
Tritanopia (blue-blind)
#00B3B2
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #37aac5;
/* rgb */ color: rgb(55, 170, 197);
/* oklch */ color: oklch(68.6% 0.107 217.0);
Tailwind
colors: {
  custom: {
    50: '#81c3d6',
    500: '#37aac5',
    950: '#000000',
  },
}
SCSS
$custom: #37aac5;
$custom-light: #81c3d6;
$custom-dark: #000000;
JSON
{
  "hex": "#37aac5",
  "rgb": {
    "r": 55,
    "g": 170,
    "b": 197
  },
  "hsl": {
    "h": 191.408,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.68599,
    "c": 0.10682,
    "h": 217
  },
  "luminance": 0.33593
}

Semantic roles & 50–950 ramp

primary
#37AAC5
secondary
#CD988B
accent
#6548E0
background
#F8FCFD
surface
#F0F8FA
border
#CBD1D3
text
#0C1214
muted
#7D8183

Preview Lab

Preview with #37AAC5

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

Preview Lab → · Contrast checker → · Palette generator →

#37AAC5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva