#37ACC4#37ACC4

#37ACC4 is a light, moderate cyan. Relative luminance 0.343; OKLCH L 69.0% C 0.106 H 214.5°. Best body text is #000000 at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#37ACC4
RGB	rgb(55, 172, 196)
HSL	hsl(190, 56%, 49%)
HSV	hsv(190, 72%, 77%)
CMYK	cmyk(71.9%, 12.2%, 0%, 23.1%)
CIE-LAB	lab(65.20, -24.23, -21.61)
CIE-LCH	lch(65.20, 32.47, 221.73°)
OKLab	oklab(69.04% -0.0877 -0.0602)
OKLCH	oklch(69.04% 0.106 214.5)
XYZ	xyz(26.2877, 34.2997, 57.4489)
Luminance	0.3430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ACC4 #C44F37

analogous

#37C496 #37ACC4 #3766C4

triadic

#37ACC4 #C437AC #ACC437

tetradic

#37ACC4 #9637C4 #C44F37 #66C437

square

#37ACC4 #9637C4 #C44F37 #66C437

split-complementary

#37ACC4 #C43766 #C49637

monochromatic

#1C5864 #2A8294 #37ACC4 #65C1D4 #94D4E1

Accessibility & contrast

On white

2.67

#37ACC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.86

#37ACC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ACC4

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ACC4	#FFFFFF	#000000	##000000
##37ACC4	1.00	2.67	7.86	7.86
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.86	21.00	1.00	1.00
##000000	7.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BA6C5

Deuteranopia (green-blind)

#8798C4

Tritanopia (blue-blind)

#00B5B3

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #37acc4;
/* rgb */ color: rgb(55, 172, 196);
/* oklch */ color: oklch(69.0% 0.106 214.5);

Tailwind

colors: {
  custom: {
    50: '#81c5d6',
    500: '#37acc4',
    950: '#000000',
  },
}

SCSS

$custom: #37acc4;
$custom-light: #81c5d6;
$custom-dark: #000000;

JSON

{
  "hex": "#37acc4",
  "rgb": {
    "r": 55,
    "g": 172,
    "b": 196
  },
  "hsl": {
    "h": 190.213,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.69041,
    "c": 0.10641,
    "h": 214.5
  },
  "luminance": 0.34303
}

Semantic roles & 50–950 ramp

primary

#37ACC4

secondary

#CC968B

accent

#6248DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #37ACC4

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

Preview Lab → · Contrast checker → · Palette generator →