#37ABC4#37ABC4

#37ABC4 is a light, moderate cyan. Relative luminance 0.339; OKLCH L 68.8% C 0.106 H 215.3°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#37ABC4
RGB	rgb(55, 171, 196)
HSL	hsl(191, 56%, 49%)
HSV	hsv(191, 72%, 77%)
CMYK	cmyk(71.9%, 12.8%, 0%, 23.1%)
CIE-LAB	lab(64.90, -23.72, -22.07)
CIE-LCH	lch(64.90, 32.40, 222.93°)
OKLab	oklab(68.8% -0.0867 -0.0615)
OKLCH	oklch(68.8% 0.106 215.3)
XYZ	xyz(26.0981, 33.9205, 57.3857)
Luminance	0.3392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ABC4 #C45037

analogous

#37C497 #37ABC4 #3765C4

triadic

#37ABC4 #C437AB #ABC437

tetradic

#37ABC4 #9737C4 #C45037 #65C437

square

#37ABC4 #9737C4 #C45037 #65C437

split-complementary

#37ABC4 #C43765 #C49737

monochromatic

#1C5864 #2A8194 #37ABC4 #65C0D4 #94D3E1

Accessibility & contrast

On white

2.70

#37ABC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#37ABC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ABC4

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ABC4	#FFFFFF	#000000	##000000
##37ABC4	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA6C5

Deuteranopia (green-blind)

#8697C4

Tritanopia (blue-blind)

#00B4B3

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #37abc4;
/* rgb */ color: rgb(55, 171, 196);
/* oklch */ color: oklch(68.8% 0.106 215.3);

Tailwind

colors: {
  custom: {
    50: '#81c4d6',
    500: '#37abc4',
    950: '#000000',
  },
}

SCSS

$custom: #37abc4;
$custom-light: #81c4d6;
$custom-dark: #000000;

JSON

{
  "hex": "#37abc4",
  "rgb": {
    "r": 55,
    "g": 171,
    "b": 196
  },
  "hsl": {
    "h": 190.638,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.68799,
    "c": 0.10634,
    "h": 215.3
  },
  "luminance": 0.33924
}

Semantic roles & 50–950 ramp

primary

#37ABC4

secondary

#CC968B

accent

#6348DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37ABC4

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

Preview Lab → · Contrast checker → · Palette generator →