#37BBD8#37BBD8

#37BBD8 is a light, moderate cyan. Relative luminance 0.413; OKLCH L 73.5% C 0.117 H 216.1°. Best body text is #000000 at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#37BBD8
RGB	rgb(55, 187, 216)
HSL	hsl(191, 67%, 53%)
HSV	hsv(191, 75%, 85%)
CMYK	cmyk(74.5%, 13.4%, 0%, 15.3%)
CIE-LAB	lab(70.39, -25.50, -24.69)
CIE-LCH	lch(70.39, 35.49, 224.08°)
OKLab	oklab(73.46% -0.0945 -0.0689)
OKLCH	oklch(73.46% 0.117 216.1)
XYZ	xyz(31.7353, 41.3069, 71.2529)
Luminance	0.4131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37BBD8 #D85437

analogous

#37D8A4 #37BBD8 #376BD8

triadic

#37BBD8 #D837BB #BBD837

tetradic

#37BBD8 #A437D8 #D85437 #6BD837

square

#37BBD8 #A437D8 #D85437 #6BD837

split-complementary

#37BBD8 #D8376B #D8A437

monochromatic

#186A7C #2296B0 #37BBD8 #6ACCE2 #9DDEEC

Accessibility & contrast

On white

2.27

#37BBD8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.26

#37BBD8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37BBD8

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37BBD8	#FFFFFF	#000000	##000000
##37BBD8	1.00	2.27	9.26	9.26
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.26	21.00	1.00	1.00
##000000	9.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7B5DA

Deuteranopia (green-blind)

#91A5D8

Tritanopia (blue-blind)

#00C5C4

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #37bbd8;
/* rgb */ color: rgb(55, 187, 216);
/* oklch */ color: oklch(73.5% 0.117 216.1);

Tailwind

colors: {
  custom: {
    50: '#85cfe4',
    500: '#37bbd8',
    950: '#000000',
  },
}

SCSS

$custom: #37bbd8;
$custom-light: #85cfe4;
$custom-dark: #000000;

JSON

{
  "hex": "#37bbd8",
  "rgb": {
    "r": 55,
    "g": 187,
    "b": 216
  },
  "hsl": {
    "h": 190.807,
    "s": 67.364,
    "l": 53.137
  },
  "oklch": {
    "l": 0.73458,
    "c": 0.11692,
    "h": 216.1
  },
  "luminance": 0.41311
}

Semantic roles & 50–950 ramp

primary

#37BBD8

secondary

#D89F93

accent

#5D3EEA

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #37BBD8

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

Preview Lab → · Contrast checker → · Palette generator →