#37AFD4#37AFD4

#37AFD4 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.4% C 0.116 H 223.0°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#37AFD4
RGB	rgb(55, 175, 212)
HSL	hsl(194, 65%, 52%)
HSV	hsv(194, 74%, 83%)
CMYK	cmyk(74.1%, 17.5%, 0%, 16.9%)
CIE-LAB	lab(66.69, -20.65, -28.18)
CIE-LCH	lch(66.69, 34.93, 233.76°)
OKLab	oklab(70.44% -0.0845 -0.0789)
OKLCH	oklch(70.44% 0.116 223)
XYZ	xyz(28.7843, 36.2222, 67.7491)
Luminance	0.3623 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AFD4 #D45C37

analogous

#37D4AA #37AFD4 #3761D4

triadic

#37AFD4 #D437AF #AFD437

tetradic

#37AFD4 #AA37D4 #D45C37 #61D437

square

#37AFD4 #AA37D4 #D45C37 #61D437

split-complementary

#37AFD4 #D43761 #D4AA37

monochromatic

#1A6177 #248AA9 #37AFD4 #69C3DF #9CD7EA

Accessibility & contrast

On white

2.55

#37AFD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.25

#37AFD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AFD4

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AFD4	#FFFFFF	#000000	##000000
##37AFD4	1.00	2.55	8.25	8.25
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.25	21.00	1.00	1.00
##000000	8.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AABD6

Deuteranopia (green-blind)

#859CD4

Tritanopia (blue-blind)

#00BABB

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #37afd4;
/* rgb */ color: rgb(55, 175, 212);
/* oklch */ color: oklch(70.4% 0.116 223.0);

Tailwind

colors: {
  custom: {
    50: '#84c7e1',
    500: '#37afd4',
    950: '#000000',
  },
}

SCSS

$custom: #37afd4;
$custom-light: #84c7e1;
$custom-dark: #000000;

JSON

{
  "hex": "#37afd4",
  "rgb": {
    "r": 55,
    "g": 175,
    "b": 212
  },
  "hsl": {
    "h": 194.14,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.70435,
    "c": 0.11557,
    "h": 223
  },
  "luminance": 0.36226
}

Semantic roles & 50–950 ramp

primary

#37AFD4

secondary

#D6A191

accent

#6840E8

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37AFD4

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

Preview Lab → · Contrast checker → · Palette generator →