#37A3C3#37A3C3

#37A3C3 is a light, moderate cyan. Relative luminance 0.309; OKLCH L 66.8% C 0.106 H 221.7°. Best body text is #000000 at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#37A3C3
RGB	rgb(55, 163, 195)
HSL	hsl(194, 56%, 49%)
HSV	hsv(194, 72%, 76%)
CMYK	cmyk(71.8%, 16.4%, 0%, 23.5%)
CIE-LAB	lab(62.46, -19.90, -25.25)
CIE-LCH	lch(62.46, 32.15, 231.76°)
OKLab	oklab(66.83% -0.0792 -0.0706)
OKLCH	oklch(66.83% 0.106 221.7)
XYZ	xyz(24.5190, 30.9439, 56.2997)
Luminance	0.3095 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A3C3 #C35737

analogous

#37C39D #37A3C3 #375DC3

triadic

#37A3C3 #C337A3 #A3C337

tetradic

#37A3C3 #9D37C3 #C35737 #5DC337

square

#37A3C3 #9D37C3 #C35737 #5DC337

split-complementary

#37A3C3 #C3375D #C39D37

monochromatic

#1C5364 #2A7B93 #37A3C3 #64BAD3 #94CFE1

Accessibility & contrast

On white

2.92

#37A3C3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.19

#37A3C3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3C3

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A3C3	#FFFFFF	#000000	##000000
##37A3C3	1.00	2.92	7.19	7.19
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.19	21.00	1.00	1.00
##000000	7.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#909FC5

Deuteranopia (green-blind)

#7D91C3

Tritanopia (blue-blind)

#00ADAD

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a3c3;
/* rgb */ color: rgb(55, 163, 195);
/* oklch */ color: oklch(66.8% 0.106 221.7);

Tailwind

colors: {
  custom: {
    50: '#81bed5',
    500: '#37a3c3',
    950: '#000000',
  },
}

SCSS

$custom: #37a3c3;
$custom-light: #81bed5;
$custom-dark: #000000;

JSON

{
  "hex": "#37a3c3",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 195
  },
  "hsl": {
    "h": 193.714,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.66827,
    "c": 0.10606,
    "h": 221.7
  },
  "luminance": 0.30947
}

Semantic roles & 50–950 ramp

primary

#37A3C3

secondary

#CC998A

accent

#6B49DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37A3C3

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

Preview Lab → · Contrast checker → · Palette generator →