#5BD1FF#5BD1FF
#5BD1FF is a light, vivid cyan. Relative luminance 0.550; OKLCH L 81.1% C 0.123 H 227.1°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).
Color values
| HEX | #5BD1FF |
|---|---|
| RGB | rgb(91, 209, 255) |
| HSL | hsl(197, 100%, 68%) |
| HSV | hsv(197, 64%, 100%) |
| CMYK | cmyk(64.3%, 18%, 0%, 0%) |
| CIE-LAB | lab(79.06, -19.61, -32.32) |
| CIE-LCH | lch(79.06, 37.80, 238.76°) |
| OKLab | oklab(81.14% -0.084 -0.0903) |
| OKLCH | oklch(81.14% 0.123 227.1) |
| XYZ | xyz(45.1577, 55.0403, 102.8323) |
| Luminance | 0.5504 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Bright Sky Blue
#02CCFE
ΔE00 3.17
Baby Blue
#89CFF0
ΔE00 4.57
Lightblue (survey)
#7BC8F6
ΔE00 4.71
Sky Blue
#87CEEB
ΔE00 4.91
Lightskyblue
#87CEFA
ΔE00 5.07
Neon Blue
#04D9FF
ΔE00 5.49
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#5BD1FF #FF895B
analogous
#5BFFDB #5BD1FF #5B7FFF
triadic
#5BD1FF #FF5BD1 #D1FF5B
tetradic
#5BD1FF #DB5BFF #FF895B #7FFF5B
square
#5BD1FF #DB5BFF #FF895B #7FFF5B
split-complementary
#5BD1FF #FF5B7F #FFDB5B
monochromatic
#00A1E0 #1EC0FF #5BD1FF #98E2FF #D5F3FF
Accessibility & contrast
On white
1.75
#5BD1FF on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
12.01
#5BD1FF on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #5BD1FF
12.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##5BD1FF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##5BD1FF | 1.00 | 1.75 | 12.01 | 12.01 |
| #FFFFFF | 1.75 | 1.00 | 21.00 | 21.00 |
| #000000 | 12.01 | 21.00 | 1.00 | 1.00 |
| ##000000 | 12.01 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B8CDFF
Deuteranopia (green-blind)
#A2BCFE
Tritanopia (blue-blind)
#00DEE0
Achromatopsia (no color)
#C4C4C4
Design tokens & code
CSS
--color: #5bd1ff; /* rgb */ color: rgb(91, 209, 255); /* oklch */ color: oklch(81.1% 0.123 227.1);
Tailwind
colors: {
custom: {
50: '#99dfff',
500: '#5bd1ff',
950: '#000000',
},
}SCSS
$custom: #5bd1ff; $custom-light: #99dfff; $custom-dark: #000000;
JSON
{
"hex": "#5bd1ff",
"rgb": {
"r": 91,
"g": 209,
"b": 255
},
"hsl": {
"h": 196.829,
"s": 100,
"l": 67.843
},
"oklch": {
"l": 0.81137,
"c": 0.12335,
"h": 227.1
},
"luminance": 0.55045
}Semantic roles & 50–950 ramp
primary
#5BD1FF
secondary
#D85826
accent
#4000E6
background
#FCFEFF
surface
#F6FCFF
border
#D0D5D7
text
#0F1518
muted
#808486