#37ADD4#37ADD4

#37ADD4 is a light, moderate cyan. Relative luminance 0.355; OKLCH L 70.0% C 0.116 H 224.6°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#37ADD4
RGB	rgb(55, 173, 212)
HSL	hsl(195, 65%, 52%)
HSV	hsv(195, 74%, 83%)
CMYK	cmyk(74.1%, 18.4%, 0%, 16.9%)
CIE-LAB	lab(66.10, -19.61, -29.09)
CIE-LCH	lch(66.10, 35.08, 236.02°)
OKLab	oklab(69.96% -0.0825 -0.0815)
OKLCH	oklch(69.96% 0.116 224.6)
XYZ	xyz(28.3979, 35.4495, 67.6203)
Luminance	0.3545 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ADD4 #D45E37

analogous

#37D4AC #37ADD4 #375FD4

triadic

#37ADD4 #D437AD #ADD437

tetradic

#37ADD4 #AC37D4 #D45E37 #5FD437

square

#37ADD4 #AC37D4 #D45E37 #5FD437

split-complementary

#37ADD4 #D4375F #D4AC37

monochromatic

#1A6077 #2488A9 #37ADD4 #69C2DF #9CD6EA

Accessibility & contrast

On white

2.60

#37ADD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#37ADD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ADD4

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ADD4	#FFFFFF	#000000	##000000
##37ADD4	1.00	2.60	8.09	8.09
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A9D6

Deuteranopia (green-blind)

#829AD4

Tritanopia (blue-blind)

#00B9BA

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #37add4;
/* rgb */ color: rgb(55, 173, 212);
/* oklch */ color: oklch(70.0% 0.116 224.6);

Tailwind

colors: {
  custom: {
    50: '#84c5e1',
    500: '#37add4',
    950: '#000000',
  },
}

SCSS

$custom: #37add4;
$custom-light: #84c5e1;
$custom-dark: #000000;

JSON

{
  "hex": "#37add4",
  "rgb": {
    "r": 55,
    "g": 173,
    "b": 212
  },
  "hsl": {
    "h": 194.904,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.6996,
    "c": 0.11599,
    "h": 224.6
  },
  "luminance": 0.35453
}

Semantic roles & 50–950 ramp

primary

#37ADD4

secondary

#D6A291

accent

#6A40E8

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37ADD4

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

Preview Lab → · Contrast checker → · Palette generator →