#63BBFD#63BBFD
#63BBFD is a light, vivid cyan. Relative luminance 0.453; OKLCH L 76.4% C 0.128 H 243.2°. Best body text is #000000 at 10.06:1 contrast (WCAG AA passes).
Color values
| HEX | #63BBFD |
|---|---|
| RGB | rgb(99, 187, 253) |
| HSL | hsl(206, 97%, 69%) |
| HSV | hsv(206, 61%, 99%) |
| CMYK | cmyk(60.9%, 26.1%, 0%, 0.8%) |
| CIE-LAB | lab(73.08, -7.27, -40.51) |
| CIE-LCH | lch(73.08, 41.15, 259.82°) |
| OKLab | oklab(76.43% -0.0574 -0.1139) |
| OKLCH | oklch(76.43% 0.128 243.2) |
| XYZ | xyz(40.6389, 45.2812, 99.5079) |
| Luminance | 0.4528 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sky Blue (survey)
#75BBFD
ΔE00 2.59
Sky
#82CAFC
ΔE00 4.75
Lightblue (survey)
#7BC8F6
ΔE00 4.98
Deepskyblue
#00BFFF
ΔE00 6.14
Lightskyblue
#87CEFA
ΔE00 6.30
Light Blue
#95D0FC
ΔE00 7.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#63BBFD #FDA563
analogous
#63FDF2 #63BBFD #636EFD
triadic
#63BBFD #FD63BB #BBFD63
tetradic
#63BBFD #F263FD #FDA563 #6EFD63
square
#63BBFD #F263FD #FDA563 #6EFD63
split-complementary
#63BBFD #FD636E #FDF263
monochromatic
#0383E3 #27A1FC #63BBFD #9FD5FE #DCF0FF
Accessibility & contrast
On white
2.09
#63BBFD on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.06
#63BBFD on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #63BBFD
10.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##63BBFD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##63BBFD | 1.00 | 2.09 | 10.06 | 10.06 |
| #FFFFFF | 2.09 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.06 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.06 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#9EBCFF
Deuteranopia (green-blind)
#89ADFC
Tritanopia (blue-blind)
#00CBD2
Achromatopsia (no color)
#B3B3B3
Design tokens & code
CSS
--color: #63bbfd; /* rgb */ color: rgb(99, 187, 253); /* oklch */ color: oklch(76.4% 0.128 243.2);
Tailwind
colors: {
custom: {
50: '#9ccffe',
500: '#63bbfd',
950: '#000000',
},
}SCSS
$custom: #63bbfd; $custom-light: #9ccffe; $custom-dark: #000000;
JSON
{
"hex": "#63bbfd",
"rgb": {
"r": 99,
"g": 187,
"b": 253
},
"hsl": {
"h": 205.714,
"s": 97.468,
"l": 69.02
},
"oklch": {
"l": 0.76427,
"c": 0.12756,
"h": 243.2
},
"luminance": 0.45285
}Semantic roles & 50–950 ramp
primary
#63BBFD
secondary
#F4DBC7
accent
#6200E6
background
#FAFCFF
surface
#F4F9FF
border
#CED2D7
text
#0F1318
muted
#7F8286