#37C5DA#37C5DA

#37C5DA is a light, moderate teal. Relative luminance 0.458; OKLCH L 75.9% C 0.119 H 209.7°. Best body text is #000000 at 10.16:1 contrast (WCAG AA passes).

Color values

HEX#37C5DA
RGBrgb(55, 197, 218)
HSLhsl(188, 69%, 54%)
HSVhsv(188, 75%, 85%)
CMYKcmyk(74.8%, 9.6%, 0%, 14.5%)
CIE-LABlab(73.42, -29.82, -21.16)
CIE-LCHlch(73.42, 36.56, 215.36°)
OKLaboklab(75.92% -0.1032 -0.0589)
OKLCHoklch(75.92% 0.119 209.7)
XYZxyz(34.1912, 45.8025, 73.3548)
Luminance0.4581 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37C5DA #DA4C37
analogous
#37DA9D #37C5DA #3773DA
triadic
#37C5DA #DA37C5 #C5DA37
tetradic
#37C5DA #9D37DA #DA4C37 #73DA37
square
#37C5DA #9D37DA #DA4C37 #73DA37
split-complementary
#37C5DA #DA3773 #DA9D37
monochromatic
#18727F #21A0B3 #37C5DA #6BD4E4 #9EE3ED

Accessibility & contrast

On white

2.07
#37C5DA on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.16
#37C5DA on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37C5DA
10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37C5DA#FFFFFF#000000##000000
##37C5DA1.002.0710.1610.16
#FFFFFF2.071.0021.0021.00
#00000010.1621.001.001.00
##00000010.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#B3BEDB
Deuteranopia (green-blind)
#9CADDA
Tritanopia (blue-blind)
#00CECB
Achromatopsia (no color)
#B4B4B4

Design tokens & code

CSS
--color: #37c5da;
/* rgb */ color: rgb(55, 197, 218);
/* oklch */ color: oklch(75.9% 0.119 209.7);
Tailwind
colors: {
  custom: {
    50: '#87d7e5',
    500: '#37c5da',
    950: '#000000',
  },
}
SCSS
$custom: #37c5da;
$custom-light: #87d7e5;
$custom-dark: #000000;
JSON
{
  "hex": "#37c5da",
  "rgb": {
    "r": 55,
    "g": 197,
    "b": 218
  },
  "hsl": {
    "h": 187.73,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.75921,
    "c": 0.11886,
    "h": 209.7
  },
  "luminance": 0.45807
}

Semantic roles & 50–950 ramp

primary
#37C5DA
secondary
#D99C93
accent
#533CEC
background
#F9FDFE
surface
#F1FAFC
border
#CBD3D5
text
#0D1415
muted
#7E8384

Preview Lab

Preview with #37C5DA

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

Preview Lab → · Contrast checker → · Palette generator →

#37C5DA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva