#37BBD7#37BBD7

#37BBD7 is a light, moderate cyan. Relative luminance 0.413; OKLCH L 73.4% C 0.116 H 215.4°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#37BBD7
RGB	rgb(55, 187, 215)
HSL	hsl(191, 67%, 53%)
HSV	hsv(191, 74%, 84%)
CMYK	cmyk(74.4%, 13%, 0%, 15.7%)
CIE-LAB	lab(70.35, -25.81, -24.20)
CIE-LCH	lch(70.35, 35.38, 223.15°)
OKLab	oklab(73.42% -0.0948 -0.0675)
OKLCH	oklch(73.42% 0.116 215.4)
XYZ	xyz(31.6064, 41.2554, 70.5741)
Luminance	0.4126 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37BBD7 #D75337

analogous

#37D7A3 #37BBD7 #376BD7

triadic

#37BBD7 #D737BB #BBD737

tetradic

#37BBD7 #A337D7 #D75337 #6BD737

square

#37BBD7 #A337D7 #D75337 #6BD737

split-complementary

#37BBD7 #D7376B #D7A337

monochromatic

#196A7B #2396AE #37BBD7 #6ACCE1 #9DDEEB

Accessibility & contrast

On white

2.27

#37BBD7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.25

#37BBD7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37BBD7

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37BBD7	#FFFFFF	#000000	##000000
##37BBD7	1.00	2.27	9.25	9.25
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.25	21.00	1.00	1.00
##000000	9.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B5D9

Deuteranopia (green-blind)

#92A5D7

Tritanopia (blue-blind)

#00C5C4

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #37bbd7;
/* rgb */ color: rgb(55, 187, 215);
/* oklch */ color: oklch(73.4% 0.116 215.4);

Tailwind

colors: {
  custom: {
    50: '#85cfe3',
    500: '#37bbd7',
    950: '#000000',
  },
}

SCSS

$custom: #37bbd7;
$custom-light: #85cfe3;
$custom-dark: #000000;

JSON

{
  "hex": "#37bbd7",
  "rgb": {
    "r": 55,
    "g": 187,
    "b": 215
  },
  "hsl": {
    "h": 190.5,
    "s": 66.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.73417,
    "c": 0.11642,
    "h": 215.4
  },
  "luminance": 0.41259
}

Semantic roles & 50–950 ramp

primary

#37BBD7

secondary

#D79E92

accent

#5C3EEA

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #37BBD7

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

Preview Lab → · Contrast checker → · Palette generator →