#37A4BF#37A4BF

#37A4BF is a light, moderate cyan. Relative luminance 0.311; OKLCH L 66.9% C 0.104 H 217.9°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#37A4BF
RGB	rgb(55, 164, 191)
HSL	hsl(192, 55%, 48%)
HSV	hsv(192, 71%, 75%)
CMYK	cmyk(71.2%, 14.1%, 0%, 25.1%)
CIE-LAB	lab(62.61, -21.71, -22.78)
CIE-LCH	lch(62.61, 31.47, 226.38°)
OKLab	oklab(66.9% -0.0817 -0.0636)
OKLCH	oklch(66.9% 0.104 217.9)
XYZ	xyz(24.2510, 31.1219, 54.0091)
Luminance	0.3113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A4BF #BF5237

analogous

#37BF96 #37A4BF #3760BF

triadic

#37A4BF #BF37A4 #A4BF37

tetradic

#37A4BF #9637BF #BF5237 #60BF37

square

#37A4BF #9637BF #BF5237 #60BF37

split-complementary

#37A4BF #BF3760 #BF9637

monochromatic

#1C5260 #297B8F #37A4BF #62BBD2 #91D0DF

Accessibility & contrast

On white

2.91

#37A4BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#37A4BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A4BF

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A4BF	#FFFFFF	#000000	##000000
##37A4BF	1.00	2.91	7.23	7.23
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#939FC0

Deuteranopia (green-blind)

#8091BF

Tritanopia (blue-blind)

#00ADAC

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a4bf;
/* rgb */ color: rgb(55, 164, 191);
/* oklch */ color: oklch(66.9% 0.104 217.9);

Tailwind

colors: {
  custom: {
    50: '#80bfd2',
    500: '#37a4bf',
    950: '#000000',
  },
}

SCSS

$custom: #37a4bf;
$custom-light: #80bfd2;
$custom-dark: #000000;

JSON

{
  "hex": "#37a4bf",
  "rgb": {
    "r": 55,
    "g": 164,
    "b": 191
  },
  "hsl": {
    "h": 191.912,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.66898,
    "c": 0.10353,
    "h": 217.9
  },
  "luminance": 0.31125
}

Semantic roles & 50–950 ramp

primary

#37A4BF

secondary

#CA9588

accent

#6749DF

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #37A4BF

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

Preview Lab → · Contrast checker → · Palette generator →