#37B7D1#37B7D1

#37B7D1 is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.2% C 0.113 H 214.6°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#37B7D1
RGB	rgb(55, 183, 209)
HSL	hsl(190, 63%, 52%)
HSV	hsv(190, 74%, 82%)
CMYK	cmyk(73.7%, 12.4%, 0%, 18%)
CIE-LAB	lab(68.95, -25.70, -23.05)
CIE-LCH	lch(68.95, 34.52, 221.90°)
OKLab	oklab(72.22% -0.0933 -0.0643)
OKLCH	oklch(72.22% 0.113 214.6)
XYZ	xyz(30.0128, 39.2791, 66.3091)
Luminance	0.3928 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B7D1 #D15137

analogous

#37D19E #37B7D1 #376AD1

triadic

#37B7D1 #D137B7 #B7D137

tetradic

#37B7D1 #9E37D1 #D15137 #6AD137

square

#37B7D1 #9E37D1 #D15137 #6AD137

split-complementary

#37B7D1 #D1376A #D19E37

monochromatic

#1A6473 #268FA5 #37B7D1 #69C9DC #9BDBE8

Accessibility & contrast

On white

2.37

#37B7D1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#37B7D1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B7D1

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B7D1	#FFFFFF	#000000	##000000
##37B7D1	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B1D2

Deuteranopia (green-blind)

#8FA2D1

Tritanopia (blue-blind)

#00C1BF

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #37b7d1;
/* rgb */ color: rgb(55, 183, 209);
/* oklch */ color: oklch(72.2% 0.113 214.6);

Tailwind

colors: {
  custom: {
    50: '#84cddf',
    500: '#37b7d1',
    950: '#000000',
  },
}

SCSS

$custom: #37b7d1;
$custom-light: #84cddf;
$custom-dark: #000000;

JSON

{
  "hex": "#37b7d1",
  "rgb": {
    "r": 55,
    "g": 183,
    "b": 209
  },
  "hsl": {
    "h": 190.13,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.72217,
    "c": 0.11334,
    "h": 214.6
  },
  "luminance": 0.39283
}

Semantic roles & 50–950 ramp

primary

#37B7D1

secondary

#D49C90

accent

#5E42E6

background

#F8FCFD

surface

#F0F9FB

border

#CBD2D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B7D1

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

Preview Lab → · Contrast checker → · Palette generator →