#37ACC5#37ACC5

#37ACC5 is a light, moderate cyan. Relative luminance 0.343; OKLCH L 69.1% C 0.107 H 215.2°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#37ACC5
RGB	rgb(55, 172, 197)
HSL	hsl(191, 56%, 49%)
HSV	hsv(191, 72%, 77%)
CMYK	cmyk(72.1%, 12.7%, 0%, 22.7%)
CIE-LAB	lab(65.24, -23.92, -22.11)
CIE-LCH	lch(65.24, 32.57, 222.75°)
OKLab	oklab(69.08% -0.0873 -0.0616)
OKLCH	oklch(69.08% 0.107 215.2)
XYZ	xyz(26.4019, 34.3454, 58.0504)
Luminance	0.3435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ACC5 #C55037

analogous

#37C597 #37ACC5 #3765C5

triadic

#37ACC5 #C537AC #ACC537

tetradic

#37ACC5 #9737C5 #C55037 #65C537

square

#37ACC5 #9737C5 #C55037 #65C537

split-complementary

#37ACC5 #C53765 #C59737

monochromatic

#1C5865 #2A8295 #37ACC5 #65C1D4 #95D4E1

Accessibility & contrast

On white

2.67

#37ACC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#37ACC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ACC5

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ACC5	#FFFFFF	#000000	##000000
##37ACC5	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BA7C6

Deuteranopia (green-blind)

#8798C5

Tritanopia (blue-blind)

#00B5B4

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #37acc5;
/* rgb */ color: rgb(55, 172, 197);
/* oklch */ color: oklch(69.1% 0.107 215.2);

Tailwind

colors: {
  custom: {
    50: '#82c5d6',
    500: '#37acc5',
    950: '#000000',
  },
}

SCSS

$custom: #37acc5;
$custom-light: #82c5d6;
$custom-dark: #000000;

JSON

{
  "hex": "#37acc5",
  "rgb": {
    "r": 55,
    "g": 172,
    "b": 197
  },
  "hsl": {
    "h": 190.563,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.69082,
    "c": 0.10689,
    "h": 215.2
  },
  "luminance": 0.34348
}

Semantic roles & 50–950 ramp

primary

#37ACC5

secondary

#CD978B

accent

#6348E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #37ACC5

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

Preview Lab → · Contrast checker → · Palette generator →