#37ACC7#37ACC7

#37ACC7 is a light, moderate cyan. Relative luminance 0.344; OKLCH L 69.2% C 0.108 H 216.7°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#37ACC7
RGB	rgb(55, 172, 199)
HSL	hsl(191, 57%, 50%)
HSV	hsv(191, 72%, 78%)
CMYK	cmyk(72.4%, 13.6%, 0%, 22%)
CIE-LAB	lab(65.31, -23.28, -23.11)
CIE-LCH	lch(65.31, 32.80, 224.79°)
OKLab	oklab(69.16% -0.0865 -0.0645)
OKLCH	oklch(69.16% 0.108 216.7)
XYZ	xyz(26.6325, 34.4377, 59.2653)
Luminance	0.3444 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ACC7 #C75237

analogous

#37C79A #37ACC7 #3764C7

triadic

#37ACC7 #C737AC #ACC737

tetradic

#37ACC7 #9A37C7 #C75237 #64C737

square

#37ACC7 #9A37C7 #C75237 #64C737

split-complementary

#37ACC7 #C73764 #C79A37

monochromatic

#1C5967 #2A8397 #37ACC7 #66C0D5 #96D4E2

Accessibility & contrast

On white

2.66

#37ACC7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#37ACC7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ACC7

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ACC7	#FFFFFF	#000000	##000000
##37ACC7	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA7C8

Deuteranopia (green-blind)

#8698C7

Tritanopia (blue-blind)

#00B6B4

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #37acc7;
/* rgb */ color: rgb(55, 172, 199);
/* oklch */ color: oklch(69.2% 0.108 216.7);

Tailwind

colors: {
  custom: {
    50: '#82c5d8',
    500: '#37acc7',
    950: '#000000',
  },
}

SCSS

$custom: #37acc7;
$custom-light: #82c5d8;
$custom-dark: #000000;

JSON

{
  "hex": "#37acc7",
  "rgb": {
    "r": 55,
    "g": 172,
    "b": 199
  },
  "hsl": {
    "h": 191.25,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.69165,
    "c": 0.10791,
    "h": 216.7
  },
  "luminance": 0.34441
}

Semantic roles & 50–950 ramp

primary

#37ACC7

secondary

#CD998C

accent

#6448E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #37ACC7

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

Preview Lab → · Contrast checker → · Palette generator →