#37ACD2#37ACD2
#37ACD2 is a light, moderate cyan. Relative luminance 0.350; OKLCH L 69.6% C 0.115 H 224.2°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #37ACD2 |
|---|---|
| RGB | rgb(55, 172, 210) |
| HSL | hsl(195, 63%, 52%) |
| HSV | hsv(195, 74%, 82%) |
| CMYK | cmyk(73.8%, 18.1%, 0%, 17.6%) |
| CIE-LAB | lab(65.72, -19.74, -28.56) |
| CIE-LCH | lch(65.72, 34.72, 235.36°) |
| OKLab | oklab(69.64% -0.0823 -0.08) |
| OKLCH | oklch(69.64% 0.115 224.2) |
| XYZ | xyz(27.9561, 34.9671, 66.2362) |
| Luminance | 0.3497 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 7.53
Deepskyblue
#00BFFF
ΔE00 7.62
Greyblue
#77A1B5
ΔE00 8.31
Bright Sky Blue
#02CCFE
ΔE00 8.71
Lightblue (survey)
#7BC8F6
ΔE00 10.12
Sky Blue
#87CEEB
ΔE00 10.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#37ACD2 #D25D37
analogous
#37D2AB #37ACD2 #375FD2
triadic
#37ACD2 #D237AC #ACD237
tetradic
#37ACD2 #AB37D2 #D25D37 #5FD237
square
#37ACD2 #AB37D2 #D25D37 #5FD237
split-complementary
#37ACD2 #D2375F #D2AB37
monochromatic
#1A5E74 #2587A6 #37ACD2 #69C1DD #9BD5E8
Accessibility & contrast
On white
2.63
#37ACD2 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.99
#37ACD2 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #37ACD2
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##37ACD2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##37ACD2 | 1.00 | 2.63 | 7.99 | 7.99 |
| #FFFFFF | 2.63 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#97A8D4
Deuteranopia (green-blind)
#8299D2
Tritanopia (blue-blind)
#00B7B8
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #37acd2; /* rgb */ color: rgb(55, 172, 210); /* oklch */ color: oklch(69.6% 0.115 224.2);
Tailwind
colors: {
custom: {
50: '#83c4e0',
500: '#37acd2',
950: '#000000',
},
}SCSS
$custom: #37acd2; $custom-light: #83c4e0; $custom-dark: #000000;
JSON
{
"hex": "#37acd2",
"rgb": {
"r": 55,
"g": 172,
"b": 210
},
"hsl": {
"h": 194.71,
"s": 63.265,
"l": 51.961
},
"oklch": {
"l": 0.69635,
"c": 0.11478,
"h": 224.2
},
"luminance": 0.3497
}Semantic roles & 50–950 ramp
primary
#37ACD2
secondary
#D4A190
accent
#6A41E6
background
#F8FCFD
surface
#F0F8FB
border
#CBD1D4
text
#0C1215
muted
#7D8183