#37B6DA#37B6DA

#37B6DA is a light, moderate cyan. Relative luminance 0.393; OKLCH L 72.4% C 0.118 H 221.3°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#37B6DA
RGB	rgb(55, 182, 218)
HSL	hsl(193, 69%, 54%)
HSV	hsv(193, 75%, 85%)
CMYK	cmyk(74.8%, 16.5%, 0%, 14.5%)
CIE-LAB	lab(68.99, -22.32, -27.94)
CIE-LCH	lch(68.99, 35.76, 231.37°)
OKLab	oklab(72.35% -0.0889 -0.0782)
OKLCH	oklch(72.35% 0.118 221.3)
XYZ	xyz(30.9531, 39.3264, 72.2755)
Luminance	0.3933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B6DA #DA5B37

analogous

#37DAAD #37B6DA #3764DA

triadic

#37B6DA #DA37B6 #B6DA37

tetradic

#37B6DA #AD37DA #DA5B37 #64DA37

square

#37B6DA #AD37DA #DA5B37 #64DA37

split-complementary

#37B6DA #DA3764 #DAAD37

monochromatic

#18687F #2193B3 #37B6DA #6BC9E4 #9EDCED

Accessibility & contrast

On white

2.37

#37B6DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#37B6DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B6DA

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B6DA	#FFFFFF	#000000	##000000
##37B6DA	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B1DC

Deuteranopia (green-blind)

#8BA1DA

Tritanopia (blue-blind)

#00C1C2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #37b6da;
/* rgb */ color: rgb(55, 182, 218);
/* oklch */ color: oklch(72.4% 0.118 221.3);

Tailwind

colors: {
  custom: {
    50: '#85cce5',
    500: '#37b6da',
    950: '#000000',
  },
}

SCSS

$custom: #37b6da;
$custom-light: #85cce5;
$custom-dark: #000000;

JSON

{
  "hex": "#37b6da",
  "rgb": {
    "r": 55,
    "g": 182,
    "b": 218
  },
  "hsl": {
    "h": 193.252,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.72354,
    "c": 0.11837,
    "h": 221.3
  },
  "luminance": 0.3933
}

Semantic roles & 50–950 ramp

primary

#37B6DA

secondary

#D9A393

accent

#633CEC

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1315

muted

#7E8284

Preview Lab

Preview with #37B6DA

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

Preview Lab → · Contrast checker → · Palette generator →