#37B4CE#37B4CE

#37B4CE is a light, moderate cyan. Relative luminance 0.379; OKLCH L 71.4% C 0.112 H 214.9°. Best body text is #000000 at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#37B4CE
RGB	rgb(55, 180, 206)
HSL	hsl(190, 61%, 51%)
HSV	hsv(190, 73%, 81%)
CMYK	cmyk(73.3%, 12.6%, 0%, 19.2%)
CIE-LAB	lab(67.95, -25.13, -22.93)
CIE-LCH	lch(67.95, 34.02, 222.38°)
OKLab	oklab(71.38% -0.0916 -0.064)
OKLCH	oklch(71.38% 0.112 214.9)
XYZ	xyz(29.0327, 37.9075, 64.1673)
Luminance	0.3791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B4CE #CE5137

analogous

#37CE9C #37B4CE #3768CE

triadic

#37B4CE #CE37B4 #B4CE37

tetradic

#37B4CE #9C37CE #CE5137 #68CE37

square

#37B4CE #9C37CE #CE5137 #68CE37

split-complementary

#37B4CE #CE3768 #CE9C37

monochromatic

#1B616F #278CA0 #37B4CE #68C6DA #99D9E6

Accessibility & contrast

On white

2.45

#37B4CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.58

#37B4CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B4CE

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B4CE	#FFFFFF	#000000	##000000
##37B4CE	1.00	2.45	8.58	8.58
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.58	21.00	1.00	1.00
##000000	8.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2AECF

Deuteranopia (green-blind)

#8D9FCE

Tritanopia (blue-blind)

#00BEBC

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #37b4ce;
/* rgb */ color: rgb(55, 180, 206);
/* oklch */ color: oklch(71.4% 0.112 214.9);

Tailwind

colors: {
  custom: {
    50: '#83cadd',
    500: '#37b4ce',
    950: '#000000',
  },
}

SCSS

$custom: #37b4ce;
$custom-light: #83cadd;
$custom-dark: #000000;

JSON

{
  "hex": "#37b4ce",
  "rgb": {
    "r": 55,
    "g": 180,
    "b": 206
  },
  "hsl": {
    "h": 190.331,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.71376,
    "c": 0.11173,
    "h": 214.9
  },
  "luminance": 0.37911
}

Semantic roles & 50–950 ramp

primary

#37B4CE

secondary

#D29B8F

accent

#6044E4

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B4CE

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

Preview Lab → · Contrast checker → · Palette generator →