#37A3C4#37A3C4

#37A3C4 is a light, moderate cyan. Relative luminance 0.310; OKLCH L 66.9% C 0.107 H 222.4°. Best body text is #000000 at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#37A3C4
RGB	rgb(55, 163, 196)
HSL	hsl(194, 56%, 49%)
HSV	hsv(194, 72%, 77%)
CMYK	cmyk(71.9%, 16.8%, 0%, 23.1%)
CIE-LAB	lab(62.50, -19.57, -25.75)
CIE-LCH	lch(62.50, 32.35, 232.76°)
OKLab	oklab(66.87% -0.0788 -0.072)
OKLCH	oklch(66.87% 0.107 222.4)
XYZ	xyz(24.6324, 30.9893, 56.8972)
Luminance	0.3099 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A3C4 #C45837

analogous

#37C49F #37A3C4 #375CC4

triadic

#37A3C4 #C437A3 #A3C437

tetradic

#37A3C4 #9F37C4 #C45837 #5CC437

square

#37A3C4 #9F37C4 #C45837 #5CC437

split-complementary

#37A3C4 #C4375C #C49F37

monochromatic

#1C5464 #2A7B94 #37A3C4 #65BAD4 #94CFE1

Accessibility & contrast

On white

2.92

#37A3C4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.20

#37A3C4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3C4

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A3C4	#FFFFFF	#000000	##000000
##37A3C4	1.00	2.92	7.20	7.20
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.20	21.00	1.00	1.00
##000000	7.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#909FC6

Deuteranopia (green-blind)

#7D91C4

Tritanopia (blue-blind)

#00ADAE

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a3c4;
/* rgb */ color: rgb(55, 163, 196);
/* oklch */ color: oklch(66.9% 0.107 222.4);

Tailwind

colors: {
  custom: {
    50: '#81bed6',
    500: '#37a3c4',
    950: '#000000',
  },
}

SCSS

$custom: #37a3c4;
$custom-light: #81bed6;
$custom-dark: #000000;

JSON

{
  "hex": "#37a3c4",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 196
  },
  "hsl": {
    "h": 194.043,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.66871,
    "c": 0.10673,
    "h": 222.4
  },
  "luminance": 0.30992
}

Semantic roles & 50–950 ramp

primary

#37A3C4

secondary

#CC9A8B

accent

#6C48DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #37A3C4

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

Preview Lab → · Contrast checker → · Palette generator →