#37A8CC#37A8CC

#37A8CC is a light, moderate cyan. Relative luminance 0.332; OKLCH L 68.4% C 0.111 H 223.6°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#37A8CC
RGB	rgb(55, 168, 204)
HSL	hsl(194, 59%, 51%)
HSV	hsv(194, 73%, 80%)
CMYK	cmyk(73%, 17.6%, 0%, 20%)
CIE-LAB	lab(64.30, -19.60, -27.43)
CIE-LCH	lch(64.30, 33.71, 234.46°)
OKLab	oklab(68.42% -0.0807 -0.0768)
OKLCH	oklch(68.42% 0.111 223.6)
XYZ	xyz(26.4728, 33.1740, 62.1231)
Luminance	0.3318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A8CC #CC5B37

analogous

#37CCA6 #37A8CC #375DCC

triadic

#37A8CC #CC37A8 #A8CC37

tetradic

#37A8CC #A637CC #CC5B37 #5DCC37

square

#37A8CC #A637CC #CC5B37 #5DCC37

split-complementary

#37A8CC #CC375D #CCA637

monochromatic

#1C596D #28819E #37A8CC #68BDD8 #99D2E5

Accessibility & contrast

On white

2.75

#37A8CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#37A8CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A8CC

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A8CC	#FFFFFF	#000000	##000000
##37A8CC	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A4CE

Deuteranopia (green-blind)

#7F95CC

Tritanopia (blue-blind)

#00B3B4

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #37a8cc;
/* rgb */ color: rgb(55, 168, 204);
/* oklch */ color: oklch(68.4% 0.111 223.6);

Tailwind

colors: {
  custom: {
    50: '#82c2db',
    500: '#37a8cc',
    950: '#000000',
  },
}

SCSS

$custom: #37a8cc;
$custom-light: #82c2db;
$custom-dark: #000000;

JSON

{
  "hex": "#37a8cc",
  "rgb": {
    "r": 55,
    "g": 168,
    "b": 204
  },
  "hsl": {
    "h": 194.497,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.68418,
    "c": 0.11137,
    "h": 223.6
  },
  "luminance": 0.33177
}

Semantic roles & 50–950 ramp

primary

#37A8CC

secondary

#D09E8E

accent

#6B45E3

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A8CC

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

Preview Lab → · Contrast checker → · Palette generator →