#37A3C7#37A3C7

#37A3C7 is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.0% C 0.109 H 224.5°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#37A3C7
RGB	rgb(55, 163, 199)
HSL	hsl(195, 57%, 50%)
HSV	hsv(195, 72%, 78%)
CMYK	cmyk(72.4%, 18.1%, 0%, 22%)
CIE-LAB	lab(62.61, -18.59, -27.25)
CIE-LCH	lch(62.61, 32.99, 235.69°)
OKLab	oklab(67% -0.0776 -0.0763)
OKLCH	oklch(67% 0.109 224.5)
XYZ	xyz(24.9773, 31.1272, 58.7135)
Luminance	0.3113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A3C7 #C75B37

analogous

#37C7A3 #37A3C7 #375BC7

triadic

#37A3C7 #C737A3 #A3C737

tetradic

#37A3C7 #A337C7 #C75B37 #5BC737

square

#37A3C7 #A337C7 #C75B37 #5BC737

split-complementary

#37A3C7 #C7375B #C7A337

monochromatic

#1C5467 #2A7C97 #37A3C7 #66B9D5 #96CFE2

Accessibility & contrast

On white

2.91

#37A3C7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#37A3C7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3C7

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A3C7	#FFFFFF	#000000	##000000
##37A3C7	1.00	2.91	7.23	7.23
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F9FC9

Deuteranopia (green-blind)

#7B91C7

Tritanopia (blue-blind)

#00AEAF

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a3c7;
/* rgb */ color: rgb(55, 163, 199);
/* oklch */ color: oklch(67.0% 0.109 224.5);

Tailwind

colors: {
  custom: {
    50: '#81bed8',
    500: '#37a3c7',
    950: '#000000',
  },
}

SCSS

$custom: #37a3c7;
$custom-light: #81bed8;
$custom-dark: #000000;

JSON

{
  "hex": "#37a3c7",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 199
  },
  "hsl": {
    "h": 195,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.67003,
    "c": 0.10884,
    "h": 224.5
  },
  "luminance": 0.3113
}

Semantic roles & 50–950 ramp

primary

#37A3C7

secondary

#CD9D8C

accent

#6E48E0

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37A3C7

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

Preview Lab → · Contrast checker → · Palette generator →