#37ABD9#37ABD9
#37ABD9 is a light, vivid cyan. Relative luminance 0.349; OKLCH L 69.7% C 0.120 H 229.2°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #37ABD9 |
|---|---|
| RGB | rgb(55, 171, 217) |
| HSL | hsl(197, 68%, 53%) |
| HSV | hsv(197, 75%, 85%) |
| CMYK | cmyk(74.7%, 21.2%, 0%, 14.9%) |
| CIE-LAB | lab(65.71, -16.90, -32.45) |
| CIE-LCH | lch(65.71, 36.59, 242.49°) |
| OKLab | oklab(69.71% -0.0788 -0.0912) |
| OKLCH | oklch(69.71% 0.121 229.2) |
| XYZ | xyz(28.6577, 34.9444, 70.8668) |
| Luminance | 0.3495 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deepskyblue
#00BFFF
ΔE00 6.33
Greyblue
#77A1B5
ΔE00 8.71
Bright Sky Blue
#02CCFE
ΔE00 8.92
Lightblue (survey)
#7BC8F6
ΔE00 9.43
Turquoise Blue
#06B1C4
ΔE00 9.91
Azure (survey)
#069AF3
ΔE00 10.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#37ABD9 #D96537
analogous
#37D9B6 #37ABD9 #375AD9
triadic
#37ABD9 #D937AB #ABD937
tetradic
#37ABD9 #B637D9 #D96537 #5AD937
square
#37ABD9 #B637D9 #D96537 #5AD937
split-complementary
#37ABD9 #D9375A #D9B637
monochromatic
#18617E #2288B1 #37ABD9 #6AC1E3 #9ED6ED
Accessibility & contrast
On white
2.63
#37ABD9 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.99
#37ABD9 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #37ABD9
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##37ABD9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##37ABD9 | 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)
#93A8DB
Deuteranopia (green-blind)
#7D99D8
Tritanopia (blue-blind)
#00B8BA
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #37abd9; /* rgb */ color: rgb(55, 171, 217); /* oklch */ color: oklch(69.7% 0.120 229.2);
Tailwind
colors: {
custom: {
50: '#84c4e5',
500: '#37abd9',
950: '#000000',
},
}SCSS
$custom: #37abd9; $custom-light: #84c4e5; $custom-dark: #000000;
JSON
{
"hex": "#37abd9",
"rgb": {
"r": 55,
"g": 171,
"b": 217
},
"hsl": {
"h": 197.037,
"s": 68.067,
"l": 53.333
},
"oklch": {
"l": 0.69712,
"c": 0.1205,
"h": 229.2
},
"luminance": 0.34948
}Semantic roles & 50–950 ramp
primary
#37ABD9
secondary
#D9A793
accent
#6E3DEB
background
#F8FCFE
surface
#F0F8FC
border
#CBD1D5
text
#0C1215
muted
#7D8184