#37A4CC#37A4CC

#37A4CC is a light, moderate cyan. Relative luminance 0.317; OKLCH L 67.5% C 0.112 H 226.9°. Best body text is #000000 at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#37A4CC
RGB	rgb(55, 164, 204)
HSL	hsl(196, 59%, 51%)
HSV	hsv(196, 73%, 80%)
CMYK	cmyk(73%, 19.6%, 0%, 20%)
CIE-LAB	lab(63.11, -17.48, -29.27)
CIE-LCH	lch(63.11, 34.09, 239.15°)
OKLab	oklab(67.47% -0.0768 -0.0821)
OKLCH	oklch(67.47% 0.112 226.9)
XYZ	xyz(25.7456, 31.7198, 61.8807)
Luminance	0.3172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A4CC #CC5F37

analogous

#37CCA9 #37A4CC #3759CC

triadic

#37A4CC #CC37A4 #A4CC37

tetradic

#37A4CC #A937CC #CC5F37 #59CC37

square

#37A4CC #A937CC #CC5F37 #59CC37

split-complementary

#37A4CC #CC3759 #CCA937

monochromatic

#1C576D #287E9E #37A4CC #68BAD8 #99D0E5

Accessibility & contrast

On white

2.86

#37A4CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.34

#37A4CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A4CC

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A4CC	#FFFFFF	#000000	##000000
##37A4CC	1.00	2.86	7.34	7.34
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.34	21.00	1.00	1.00
##000000	7.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA1CE

Deuteranopia (green-blind)

#7A92CC

Tritanopia (blue-blind)

#00B0B1

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #37a4cc;
/* rgb */ color: rgb(55, 164, 204);
/* oklch */ color: oklch(67.5% 0.112 226.9);

Tailwind

colors: {
  custom: {
    50: '#82bfdb',
    500: '#37a4cc',
    950: '#000000',
  },
}

SCSS

$custom: #37a4cc;
$custom-light: #82bfdb;
$custom-dark: #000000;

JSON

{
  "hex": "#37a4cc",
  "rgb": {
    "r": 55,
    "g": 164,
    "b": 204
  },
  "hsl": {
    "h": 196.107,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.67465,
    "c": 0.11237,
    "h": 226.9
  },
  "luminance": 0.31723
}

Semantic roles & 50–950 ramp

primary

#37A4CC

secondary

#D0A08E

accent

#6F45E3

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A4CC

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

Preview Lab → · Contrast checker → · Palette generator →