#37B1CA#37B1CA

#37B1CA is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.5% C 0.110 H 214.6°. Best body text is #000000 at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#37B1CA
RGB	rgb(55, 177, 202)
HSL	hsl(190, 58%, 50%)
HSV	hsv(190, 73%, 79%)
CMYK	cmyk(72.8%, 12.4%, 0%, 20.8%)
CIE-LAB	lab(66.91, -24.88, -22.32)
CIE-LCH	lch(66.91, 33.42, 221.90°)
OKLab	oklab(70.49% -0.0903 -0.0622)
OKLCH	oklch(70.49% 0.11 214.6)
XYZ	xyz(27.9538, 36.5175, 61.4410)
Luminance	0.3652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B1CA #CA5037

analogous

#37CA99 #37B1CA #3767CA

triadic

#37B1CA #CA37B1 #B1CA37

tetradic

#37B1CA #9937CA #CA5037 #67CA37

square

#37B1CA #9937CA #CA5037 #67CA37

split-complementary

#37B1CA #CA3767 #CA9937

monochromatic

#1C5D6A #29879B #37B1CA #67C4D7 #98D7E4

Accessibility & contrast

On white

2.53

#37B1CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.30

#37B1CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B1CA

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B1CA	#FFFFFF	#000000	##000000
##37B1CA	1.00	2.53	8.30	8.30
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.30	21.00	1.00	1.00
##000000	8.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FABCB

Deuteranopia (green-blind)

#8B9CCA

Tritanopia (blue-blind)

#00BAB9

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #37b1ca;
/* rgb */ color: rgb(55, 177, 202);
/* oklch */ color: oklch(70.5% 0.110 214.6);

Tailwind

colors: {
  custom: {
    50: '#83c8da',
    500: '#37b1ca',
    950: '#000000',
  },
}

SCSS

$custom: #37b1ca;
$custom-light: #83c8da;
$custom-dark: #000000;

JSON

{
  "hex": "#37b1ca",
  "rgb": {
    "r": 55,
    "g": 177,
    "b": 202
  },
  "hsl": {
    "h": 190.204,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.70492,
    "c": 0.10963,
    "h": 214.6
  },
  "luminance": 0.36521
}

Semantic roles & 50–950 ramp

primary

#37B1CA

secondary

#CF998E

accent

#6146E1

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #37B1CA

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

Preview Lab → · Contrast checker → · Palette generator →