#37B6D4#37B6D4

#37B6D4 is a light, moderate cyan. Relative luminance 0.390; OKLCH L 72.1% C 0.115 H 217.4°. Best body text is #000000 at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#37B6D4
RGB	rgb(55, 182, 212)
HSL	hsl(191, 65%, 52%)
HSV	hsv(191, 74%, 83%)
CMYK	cmyk(74.1%, 14.2%, 0%, 16.9%)
CIE-LAB	lab(68.76, -24.24, -24.99)
CIE-LCH	lch(68.76, 34.82, 225.87°)
OKLab	oklab(72.1% -0.0912 -0.0698)
OKLCH	oklch(72.1% 0.115 217.4)
XYZ	xyz(30.1821, 39.0180, 68.2151)
Luminance	0.3902 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B6D4 #D45537

analogous

#37D4A4 #37B6D4 #3768D4

triadic

#37B6D4 #D437B6 #B6D437

tetradic

#37B6D4 #A437D4 #D45537 #68D437

square

#37B6D4 #A437D4 #D45537 #68D437

split-complementary

#37B6D4 #D43768 #D4A437

monochromatic

#1A6577 #2490A9 #37B6D4 #69C8DF #9CDBEA

Accessibility & contrast

On white

2.39

#37B6D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.80

#37B6D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B6D4

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B6D4	#FFFFFF	#000000	##000000
##37B6D4	1.00	2.39	8.80	8.80
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.80	21.00	1.00	1.00
##000000	8.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B1D6

Deuteranopia (green-blind)

#8DA1D4

Tritanopia (blue-blind)

#00C0BF

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #37b6d4;
/* rgb */ color: rgb(55, 182, 212);
/* oklch */ color: oklch(72.1% 0.115 217.4);

Tailwind

colors: {
  custom: {
    50: '#84cce1',
    500: '#37b6d4',
    950: '#000000',
  },
}

SCSS

$custom: #37b6d4;
$custom-light: #84cce1;
$custom-dark: #000000;

JSON

{
  "hex": "#37b6d4",
  "rgb": {
    "r": 55,
    "g": 182,
    "b": 212
  },
  "hsl": {
    "h": 191.465,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.72101,
    "c": 0.11484,
    "h": 217.4
  },
  "luminance": 0.39022
}

Semantic roles & 50–950 ramp

primary

#37B6D4

secondary

#D69E91

accent

#6040E8

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #37B6D4

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

Preview Lab → · Contrast checker → · Palette generator →