#37C8E5#37C8E5
#37C8E5 is a light, vivid cyan. Relative luminance 0.478; OKLCH L 77.1% C 0.124 H 214.6°. Best body text is #000000 at 10.56:1 contrast (WCAG AA passes).
Color values
| HEX | #37C8E5 |
|---|---|
| RGB | rgb(55, 200, 229) |
| HSL | hsl(190, 77%, 56%) |
| HSV | hsv(190, 76%, 90%) |
| CMYK | cmyk(76%, 12.7%, 0%, 10.2%) |
| CIE-LAB | lab(74.68, -27.88, -25.18) |
| CIE-LCH | lch(74.68, 37.57, 222.09°) |
| OKLab | oklab(77.07% -0.1017 -0.0703) |
| OKLCH | oklch(77.07% 0.124 214.6) |
| XYZ | xyz(36.3666, 47.7735, 81.4181) |
| Luminance | 0.4778 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Neon Blue
#04D9FF
ΔE00 4.53
Bright Sky Blue
#02CCFE
ΔE00 5.49
Aqua Blue
#02D8E9
ΔE00 6.20
Turquoise Blue
#06B1C4
ΔE00 7.28
Sky Blue
#87CEEB
ΔE00 7.29
Baby Blue
#89CFF0
ΔE00 8.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#37C8E5 #E55437
analogous
#37E5AB #37C8E5 #3771E5
triadic
#37C8E5 #E537C8 #C8E537
tetradic
#37C8E5 #AB37E5 #E55437 #71E537
square
#37C8E5 #AB37E5 #E55437 #71E537
split-complementary
#37C8E5 #E53771 #E5AB37
monochromatic
#137A8F #1AA9C5 #37C8E5 #6DD7EC #A3E6F3
Accessibility & contrast
On white
1.99
#37C8E5 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.56
#37C8E5 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #37C8E5
10.56:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##37C8E5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##37C8E5 | 1.00 | 1.99 | 10.56 | 10.56 |
| #FFFFFF | 1.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.56 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.56 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B3C1E7
Deuteranopia (green-blind)
#9CB0E5
Tritanopia (blue-blind)
#00D3D1
Achromatopsia (no color)
#B8B8B8
Design tokens & code
CSS
--color: #37c8e5; /* rgb */ color: rgb(55, 200, 229); /* oklch */ color: oklch(77.1% 0.124 214.6);
Tailwind
colors: {
custom: {
50: '#88d9ed',
500: '#37c8e5',
950: '#000000',
},
}SCSS
$custom: #37c8e5; $custom-light: #88d9ed; $custom-dark: #000000;
JSON
{
"hex": "#37c8e5",
"rgb": {
"r": 55,
"g": 200,
"b": 229
},
"hsl": {
"h": 190,
"s": 76.991,
"l": 55.686
},
"oklch": {
"l": 0.77068,
"c": 0.12362,
"h": 214.6
},
"luminance": 0.47778
}Semantic roles & 50–950 ramp
primary
#37C8E5
secondary
#E0A498
accent
#5434F4
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0D1416
muted
#7E8384