#37B0CA#37B0CA

#37B0CA is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.3% C 0.110 H 215.4°. Best body text is #000000 at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#37B0CA
RGB	rgb(55, 176, 202)
HSL	hsl(191, 58%, 50%)
HSV	hsv(191, 73%, 79%)
CMYK	cmyk(72.8%, 12.9%, 0%, 20.8%)
CIE-LAB	lab(66.61, -24.37, -22.77)
CIE-LCH	lch(66.61, 33.35, 223.06°)
OKLab	oklab(70.25% -0.0893 -0.0635)
OKLCH	oklch(70.25% 0.11 215.4)
XYZ	xyz(27.7570, 36.1239, 61.3754)
Luminance	0.3613 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B0CA #CA5137

analogous

#37CA9A #37B0CA #3767CA

triadic

#37B0CA #CA37B0 #B0CA37

tetradic

#37B0CA #9A37CA #CA5137 #67CA37

square

#37B0CA #9A37CA #CA5137 #67CA37

split-complementary

#37B0CA #CA3767 #CA9A37

monochromatic

#1C5D6A #29879B #37B0CA #67C3D7 #98D6E4

Accessibility & contrast

On white

2.55

#37B0CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.23

#37B0CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B0CA

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B0CA	#FFFFFF	#000000	##000000
##37B0CA	1.00	2.55	8.23	8.23
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.23	21.00	1.00	1.00
##000000	8.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EAACB

Deuteranopia (green-blind)

#8A9CCA

Tritanopia (blue-blind)

#00BAB8

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #37b0ca;
/* rgb */ color: rgb(55, 176, 202);
/* oklch */ color: oklch(70.3% 0.110 215.4);

Tailwind

colors: {
  custom: {
    50: '#83c8da',
    500: '#37b0ca',
    950: '#000000',
  },
}

SCSS

$custom: #37b0ca;
$custom-light: #83c8da;
$custom-dark: #000000;

JSON

{
  "hex": "#37b0ca",
  "rgb": {
    "r": 55,
    "g": 176,
    "b": 202
  },
  "hsl": {
    "h": 190.612,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.70251,
    "c": 0.10957,
    "h": 215.4
  },
  "luminance": 0.36127
}

Semantic roles & 50–950 ramp

primary

#37B0CA

secondary

#CF998E

accent

#6246E1

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #37B0CA

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

Preview Lab → · Contrast checker → · Palette generator →