#37B3CE#37B3CE

#37B3CE is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.1% C 0.112 H 215.7°. Best body text is #000000 at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#37B3CE
RGB	rgb(55, 179, 206)
HSL	hsl(191, 61%, 51%)
HSV	hsv(191, 73%, 81%)
CMYK	cmyk(73.3%, 13.1%, 0%, 19.2%)
CIE-LAB	lab(67.65, -24.63, -23.39)
CIE-LCH	lch(67.65, 33.96, 223.53°)
OKLab	oklab(71.14% -0.0906 -0.0652)
OKLCH	oklch(71.14% 0.112 215.7)
XYZ	xyz(28.8315, 37.5052, 64.1003)
Luminance	0.3751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B3CE #CE5237

analogous

#37CE9D #37B3CE #3767CE

triadic

#37B3CE #CE37B3 #B3CE37

tetradic

#37B3CE #9D37CE #CE5237 #67CE37

square

#37B3CE #9D37CE #CE5237 #67CE37

split-complementary

#37B3CE #CE3767 #CE9D37

monochromatic

#1B606F #278BA0 #37B3CE #68C6DA #99D8E6

Accessibility & contrast

On white

2.47

#37B3CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.50

#37B3CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B3CE

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B3CE	#FFFFFF	#000000	##000000
##37B3CE	1.00	2.47	8.50	8.50
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.50	21.00	1.00	1.00
##000000	8.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0ADD0

Deuteranopia (green-blind)

#8C9ECE

Tritanopia (blue-blind)

#00BDBB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #37b3ce;
/* rgb */ color: rgb(55, 179, 206);
/* oklch */ color: oklch(71.1% 0.112 215.7);

Tailwind

colors: {
  custom: {
    50: '#83cadd',
    500: '#37b3ce',
    950: '#000000',
  },
}

SCSS

$custom: #37b3ce;
$custom-light: #83cadd;
$custom-dark: #000000;

JSON

{
  "hex": "#37b3ce",
  "rgb": {
    "r": 55,
    "g": 179,
    "b": 206
  },
  "hsl": {
    "h": 190.728,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.71136,
    "c": 0.11169,
    "h": 215.7
  },
  "luminance": 0.37509
}

Semantic roles & 50–950 ramp

primary

#37B3CE

secondary

#D29B8F

accent

#6144E4

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B3CE

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

Preview Lab → · Contrast checker → · Palette generator →