#37B0CC#37B0CC

#37B0CC is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.3% C 0.111 H 216.8°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#37B0CC
RGB	rgb(55, 176, 204)
HSL	hsl(191, 59%, 51%)
HSV	hsv(191, 73%, 80%)
CMYK	cmyk(73%, 13.7%, 0%, 20%)
CIE-LAB	lab(66.69, -23.74, -23.77)
CIE-LCH	lch(66.69, 33.59, 225.04°)
OKLab	oklab(70.33% -0.0885 -0.0663)
OKLCH	oklch(70.33% 0.111 216.8)
XYZ	xyz(27.9954, 36.2192, 62.6306)
Luminance	0.3622 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B0CC #CC5337

analogous

#37CC9D #37B0CC #3765CC

triadic

#37B0CC #CC37B0 #B0CC37

tetradic

#37B0CC #9D37CC #CC5337 #65CC37

square

#37B0CC #9D37CC #CC5337 #65CC37

split-complementary

#37B0CC #CC3765 #CC9D37

monochromatic

#1C5E6D #28889E #37B0CC #68C3D8 #99D7E5

Accessibility & contrast

On white

2.55

#37B0CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#37B0CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B0CC

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B0CC	#FFFFFF	#000000	##000000
##37B0CC	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DABCE

Deuteranopia (green-blind)

#899CCC

Tritanopia (blue-blind)

#00BAB9

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #37b0cc;
/* rgb */ color: rgb(55, 176, 204);
/* oklch */ color: oklch(70.3% 0.111 216.8);

Tailwind

colors: {
  custom: {
    50: '#83c7db',
    500: '#37b0cc',
    950: '#000000',
  },
}

SCSS

$custom: #37b0cc;
$custom-light: #83c7db;
$custom-dark: #000000;

JSON

{
  "hex": "#37b0cc",
  "rgb": {
    "r": 55,
    "g": 176,
    "b": 204
  },
  "hsl": {
    "h": 191.275,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.70334,
    "c": 0.11059,
    "h": 216.8
  },
  "luminance": 0.36223
}

Semantic roles & 50–950 ramp

primary

#37B0CC

secondary

#D09B8E

accent

#6345E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B0CC

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

Preview Lab → · Contrast checker → · Palette generator →