#37ACC9#37ACC9

#37ACC9 is a light, moderate cyan. Relative luminance 0.345; OKLCH L 69.2% C 0.109 H 218.1°. Best body text is #000000 at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#37ACC9
RGB	rgb(55, 172, 201)
HSL	hsl(192, 57%, 50%)
HSV	hsv(192, 73%, 79%)
CMYK	cmyk(72.6%, 14.4%, 0%, 21.2%)
CIE-LAB	lab(65.38, -22.64, -24.11)
CIE-LCH	lch(65.38, 33.07, 226.79°)
OKLab	oklab(69.25% -0.0858 -0.0673)
OKLCH	oklch(69.25% 0.109 218.1)
XYZ	xyz(26.8663, 34.5312, 60.4963)
Luminance	0.3453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ACC9 #C95437

analogous

#37C99D #37ACC9 #3763C9

triadic

#37ACC9 #C937AC #ACC937

tetradic

#37ACC9 #9D37C9 #C95437 #63C937

square

#37ACC9 #9D37C9 #C95437 #63C937

split-complementary

#37ACC9 #C93763 #C99D37

monochromatic

#1C5A69 #298399 #37ACC9 #67C0D6 #97D4E3

Accessibility & contrast

On white

2.66

#37ACC9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.91

#37ACC9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ACC9

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ACC9	#FFFFFF	#000000	##000000
##37ACC9	1.00	2.66	7.91	7.91
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.91	21.00	1.00	1.00
##000000	7.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99A7CB

Deuteranopia (green-blind)

#8598C9

Tritanopia (blue-blind)

#00B6B5

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #37acc9;
/* rgb */ color: rgb(55, 172, 201);
/* oklch */ color: oklch(69.2% 0.109 218.1);

Tailwind

colors: {
  custom: {
    50: '#82c5d9',
    500: '#37acc9',
    950: '#000000',
  },
}

SCSS

$custom: #37acc9;
$custom-light: #82c5d9;
$custom-dark: #000000;

JSON

{
  "hex": "#37acc9",
  "rgb": {
    "r": 55,
    "g": 172,
    "b": 201
  },
  "hsl": {
    "h": 191.918,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.69248,
    "c": 0.109,
    "h": 218.1
  },
  "luminance": 0.34534
}

Semantic roles & 50–950 ramp

primary

#37ACC9

secondary

#CF9A8D

accent

#6647E1

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37ACC9

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

Preview Lab → · Contrast checker → · Palette generator →