#37ABC5#37ABC5

#37ABC5 is a light, moderate cyan. Relative luminance 0.340; OKLCH L 68.8% C 0.107 H 216.1°. Best body text is #000000 at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#37ABC5
RGB	rgb(55, 171, 197)
HSL	hsl(191, 56%, 49%)
HSV	hsv(191, 72%, 77%)
CMYK	cmyk(72.1%, 13.2%, 0%, 22.7%)
CIE-LAB	lab(64.94, -23.41, -22.57)
CIE-LCH	lch(64.94, 32.51, 223.96°)
OKLab	oklab(68.84% -0.0863 -0.0629)
OKLCH	oklch(68.84% 0.107 216.1)
XYZ	xyz(26.2123, 33.9662, 57.9872)
Luminance	0.3397 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ABC5 #C55137

analogous

#37C598 #37ABC5 #3764C5

triadic

#37ABC5 #C537AB #ABC537

tetradic

#37ABC5 #9837C5 #C55137 #64C537

square

#37ABC5 #9837C5 #C55137 #64C537

split-complementary

#37ABC5 #C53764 #C59837

monochromatic

#1C5865 #2A8195 #37ABC5 #65C0D4 #95D3E1

Accessibility & contrast

On white

2.69

#37ABC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.79

#37ABC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ABC5

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ABC5	#FFFFFF	#000000	##000000
##37ABC5	1.00	2.69	7.79	7.79
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.79	21.00	1.00	1.00
##000000	7.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99A6C6

Deuteranopia (green-blind)

#8697C5

Tritanopia (blue-blind)

#00B4B3

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #37abc5;
/* rgb */ color: rgb(55, 171, 197);
/* oklch */ color: oklch(68.8% 0.107 216.1);

Tailwind

colors: {
  custom: {
    50: '#81c4d6',
    500: '#37abc5',
    950: '#000000',
  },
}

SCSS

$custom: #37abc5;
$custom-light: #81c4d6;
$custom-dark: #000000;

JSON

{
  "hex": "#37abc5",
  "rgb": {
    "r": 55,
    "g": 171,
    "b": 197
  },
  "hsl": {
    "h": 190.986,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.68841,
    "c": 0.10684,
    "h": 216.1
  },
  "luminance": 0.33969
}

Semantic roles & 50–950 ramp

primary

#37ABC5

secondary

#CD978B

accent

#6448E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37ABC5

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

Preview Lab → · Contrast checker → · Palette generator →