#37B2CC#37B2CC

#37B2CC is a light, moderate cyan. Relative luminance 0.370; OKLCH L 70.8% C 0.111 H 215.2°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#37B2CC
RGB	rgb(55, 178, 204)
HSL	hsl(190, 59%, 51%)
HSV	hsv(190, 73%, 80%)
CMYK	cmyk(73%, 12.7%, 0%, 20%)
CIE-LAB	lab(67.28, -24.75, -22.85)
CIE-LCH	lch(67.28, 33.69, 222.72°)
OKLab	oklab(70.81% -0.0905 -0.0637)
OKLCH	oklch(70.81% 0.111 215.2)
XYZ	xyz(28.3904, 37.0093, 62.7623)
Luminance	0.3701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B2CC #CC5137

analogous

#37CC9C #37B2CC #3767CC

triadic

#37B2CC #CC37B2 #B2CC37

tetradic

#37B2CC #9C37CC #CC5137 #67CC37

square

#37B2CC #9C37CC #CC5137 #67CC37

split-complementary

#37B2CC #CC3767 #CC9C37

monochromatic

#1C5F6D #28899E #37B2CC #68C5D8 #99D8E5

Accessibility & contrast

On white

2.50

#37B2CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#37B2CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B2CC

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B2CC	#FFFFFF	#000000	##000000
##37B2CC	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0ACCD

Deuteranopia (green-blind)

#8B9DCC

Tritanopia (blue-blind)

#00BCBA

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #37b2cc;
/* rgb */ color: rgb(55, 178, 204);
/* oklch */ color: oklch(70.8% 0.111 215.2);

Tailwind

colors: {
  custom: {
    50: '#83c9db',
    500: '#37b2cc',
    950: '#000000',
  },
}

SCSS

$custom: #37b2cc;
$custom-light: #83c9db;
$custom-dark: #000000;

JSON

{
  "hex": "#37b2cc",
  "rgb": {
    "r": 55,
    "g": 178,
    "b": 204
  },
  "hsl": {
    "h": 190.47,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.70814,
    "c": 0.11065,
    "h": 215.2
  },
  "luminance": 0.37013
}

Semantic roles & 50–950 ramp

primary

#37B2CC

secondary

#D09A8E

accent

#6145E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B2CC

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

Preview Lab → · Contrast checker → · Palette generator →