#37A1BF#37A1BF

#37A1BF is a light, moderate cyan. Relative luminance 0.301; OKLCH L 66.2% C 0.104 H 220.6°. Best body text is #000000 at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#37A1BF
RGB	rgb(55, 161, 191)
HSL	hsl(193, 55%, 48%)
HSV	hsv(193, 71%, 75%)
CMYK	cmyk(71.2%, 15.7%, 0%, 25.1%)
CIE-LAB	lab(61.71, -20.14, -24.17)
CIE-LCH	lch(61.71, 31.46, 230.19°)
OKLab	oklab(66.17% -0.0787 -0.0675)
OKLCH	oklch(66.17% 0.104 220.6)
XYZ	xyz(23.7205, 30.0608, 53.8323)
Luminance	0.3006 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A1BF #BF5537

analogous

#37BF99 #37A1BF #375DBF

triadic

#37A1BF #BF37A1 #A1BF37

tetradic

#37A1BF #9937BF #BF5537 #5DBF37

square

#37A1BF #9937BF #BF5537 #5DBF37

split-complementary

#37A1BF #BF375D #BF9937

monochromatic

#1C5160 #29798F #37A1BF #62B9D2 #91CEDF

Accessibility & contrast

On white

2.99

#37A1BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.01

#37A1BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A1BF

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A1BF	#FFFFFF	#000000	##000000
##37A1BF	1.00	2.99	7.01	7.01
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.01	21.00	1.00	1.00
##000000	7.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F9DC1

Deuteranopia (green-blind)

#7C8FBF

Tritanopia (blue-blind)

#00ABAB

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #37a1bf;
/* rgb */ color: rgb(55, 161, 191);
/* oklch */ color: oklch(66.2% 0.104 220.6);

Tailwind

colors: {
  custom: {
    50: '#80bdd2',
    500: '#37a1bf',
    950: '#000000',
  },
}

SCSS

$custom: #37a1bf;
$custom-light: #80bdd2;
$custom-dark: #000000;

JSON

{
  "hex": "#37a1bf",
  "rgb": {
    "r": 55,
    "g": 161,
    "b": 191
  },
  "hsl": {
    "h": 193.235,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.66172,
    "c": 0.10369,
    "h": 220.6
  },
  "luminance": 0.30064
}

Semantic roles & 50–950 ramp

primary

#37A1BF

secondary

#CA9688

accent

#6A49DF

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #37A1BF

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

Preview Lab → · Contrast checker → · Palette generator →