#37B3CC#37B3CC

#37B3CC is a light, moderate cyan. Relative luminance 0.374; OKLCH L 71.1% C 0.111 H 214.3°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#37B3CC
RGB	rgb(55, 179, 204)
HSL	hsl(190, 59%, 51%)
HSV	hsv(190, 73%, 80%)
CMYK	cmyk(73%, 12.3%, 0%, 20%)
CIE-LAB	lab(67.58, -25.26, -22.40)
CIE-LCH	lch(67.58, 33.76, 221.57°)
OKLab	oklab(71.06% -0.0914 -0.0624)
OKLCH	oklch(71.06% 0.111 214.3)
XYZ	xyz(28.5901, 37.4087, 62.8288)
Luminance	0.3741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B3CC #CC5037

analogous

#37CC9A #37B3CC #3768CC

triadic

#37B3CC #CC37B3 #B3CC37

tetradic

#37B3CC #9A37CC #CC5037 #68CC37

square

#37B3CC #9A37CC #CC5037 #68CC37

split-complementary

#37B3CC #CC3768 #CC9A37

monochromatic

#1C5F6D #288A9E #37B3CC #68C6D8 #99D8E5

Accessibility & contrast

On white

2.48

#37B3CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#37B3CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B3CC

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B3CC	#FFFFFF	#000000	##000000
##37B3CC	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1ADCD

Deuteranopia (green-blind)

#8D9ECC

Tritanopia (blue-blind)

#00BCBB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #37b3cc;
/* rgb */ color: rgb(55, 179, 204);
/* oklch */ color: oklch(71.1% 0.111 214.3);

Tailwind

colors: {
  custom: {
    50: '#83cadb',
    500: '#37b3cc',
    950: '#000000',
  },
}

SCSS

$custom: #37b3cc;
$custom-light: #83cadb;
$custom-dark: #000000;

JSON

{
  "hex": "#37b3cc",
  "rgb": {
    "r": 55,
    "g": 179,
    "b": 204
  },
  "hsl": {
    "h": 190.067,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.71055,
    "c": 0.11072,
    "h": 214.3
  },
  "luminance": 0.37412
}

Semantic roles & 50–950 ramp

primary

#37B3CC

secondary

#D0998E

accent

#6045E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B3CC

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

Preview Lab → · Contrast checker → · Palette generator →