#37B5D6#37B5D6

#37B5D6 is a light, moderate cyan. Relative luminance 0.387; OKLCH L 71.9% C 0.116 H 219.5°. Best body text is #000000 at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#37B5D6
RGB	rgb(55, 181, 214)
HSL	hsl(192, 66%, 53%)
HSV	hsv(192, 74%, 84%)
CMYK	cmyk(74.3%, 15.4%, 0%, 16.1%)
CIE-LAB	lab(68.54, -23.10, -26.43)
CIE-LCH	lch(68.54, 35.10, 228.85°)
OKLab	oklab(71.95% -0.0895 -0.0739)
OKLCH	oklch(71.95% 0.116 219.5)
XYZ	xyz(30.2319, 38.7114, 69.4840)
Luminance	0.3871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B5D6 #D65837

analogous

#37D6A8 #37B5D6 #3765D6

triadic

#37B5D6 #D637B5 #B5D637

tetradic

#37B5D6 #A837D6 #D65837 #65D637

square

#37B5D6 #A837D6 #D65837 #65D637

split-complementary

#37B5D6 #D63765 #D6A837

monochromatic

#19667A #2390AC #37B5D6 #6AC8E0 #9DDBEB

Accessibility & contrast

On white

2.40

#37B5D6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.74

#37B5D6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B5D6

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B5D6	#FFFFFF	#000000	##000000
##37B5D6	1.00	2.40	8.74	8.74
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.74	21.00	1.00	1.00
##000000	8.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B0D8

Deuteranopia (green-blind)

#8BA0D6

Tritanopia (blue-blind)

#00C0BF

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #37b5d6;
/* rgb */ color: rgb(55, 181, 214);
/* oklch */ color: oklch(71.9% 0.116 219.5);

Tailwind

colors: {
  custom: {
    50: '#85cbe2',
    500: '#37b5d6',
    950: '#000000',
  },
}

SCSS

$custom: #37b5d6;
$custom-light: #85cbe2;
$custom-dark: #000000;

JSON

{
  "hex": "#37b5d6",
  "rgb": {
    "r": 55,
    "g": 181,
    "b": 214
  },
  "hsl": {
    "h": 192.453,
    "s": 65.975,
    "l": 52.745
  },
  "oklch": {
    "l": 0.71947,
    "c": 0.11602,
    "h": 219.5
  },
  "luminance": 0.38715
}

Semantic roles & 50–950 ramp

primary

#37B5D6

secondary

#D7A092

accent

#623FE9

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #37B5D6

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

Preview Lab → · Contrast checker → · Palette generator →