#37AAC4#37AAC4

#37AAC4 is a light, moderate cyan. Relative luminance 0.335; OKLCH L 68.6% C 0.106 H 216.2°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#37AAC4
RGB	rgb(55, 170, 196)
HSL	hsl(191, 56%, 49%)
HSV	hsv(191, 72%, 77%)
CMYK	cmyk(71.9%, 13.3%, 0%, 23.1%)
CIE-LAB	lab(64.60, -23.21, -22.53)
CIE-LCH	lch(64.60, 32.35, 224.15°)
OKLab	oklab(68.56% -0.0857 -0.0628)
OKLCH	oklch(68.56% 0.106 216.2)
XYZ	xyz(25.9099, 33.5442, 57.3230)
Luminance	0.3355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37AAC4 #C45137

analogous

#37C498 #37AAC4 #3764C4

triadic

#37AAC4 #C437AA #AAC437

tetradic

#37AAC4 #9837C4 #C45137 #64C437

square

#37AAC4 #9837C4 #C45137 #64C437

split-complementary

#37AAC4 #C43764 #C49837

monochromatic

#1C5764 #2A8194 #37AAC4 #65BFD4 #94D3E1

Accessibility & contrast

On white

2.72

#37AAC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#37AAC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37AAC4

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37AAC4	#FFFFFF	#000000	##000000
##37AAC4	1.00	2.72	7.71	7.71
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A5C5

Deuteranopia (green-blind)

#8596C4

Tritanopia (blue-blind)

#00B3B2

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #37aac4;
/* rgb */ color: rgb(55, 170, 196);
/* oklch */ color: oklch(68.6% 0.106 216.2);

Tailwind

colors: {
  custom: {
    50: '#81c3d6',
    500: '#37aac4',
    950: '#000000',
  },
}

SCSS

$custom: #37aac4;
$custom-light: #81c3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#37aac4",
  "rgb": {
    "r": 55,
    "g": 170,
    "b": 196
  },
  "hsl": {
    "h": 191.064,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.68558,
    "c": 0.10629,
    "h": 216.2
  },
  "luminance": 0.33547
}

Semantic roles & 50–950 ramp

primary

#37AAC4

secondary

#CC978B

accent

#6448DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37AAC4

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

Preview Lab → · Contrast checker → · Palette generator →