#63D9F3#63D9F3
#63D9F3 is a very light, moderate cyan. Relative luminance 0.587; OKLCH L 82.7% C 0.111 H 214.5°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).
Color values
| HEX | #63D9F3 |
|---|---|
| RGB | rgb(99, 217, 243) |
| HSL | hsl(191, 86%, 67%) |
| HSV | hsv(191, 59%, 95%) |
| CMYK | cmyk(59.3%, 10.7%, 0%, 4.7%) |
| CIE-LAB | lab(81.15, -25.82, -22.72) |
| CIE-LCH | lch(81.15, 34.40, 221.34°) |
| OKLab | oklab(82.74% -0.0919 -0.063) |
| OKLCH | oklch(82.74% 0.111 214.5) |
| XYZ | xyz(46.1295, 58.7448, 93.6845) |
| Luminance | 0.5875 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Neon Blue
#04D9FF
ΔE00 3.63
Robin'S Egg
#6DEDFD
ΔE00 5.68
Aqua Blue
#02D8E9
ΔE00 5.74
Sky Blue
#87CEEB
ΔE00 5.96
Baby Blue
#89CFF0
ΔE00 6.86
Robin Egg Blue
#8AF1FE
ΔE00 6.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#63D9F3 #F37D63
analogous
#63F3C5 #63D9F3 #6391F3
triadic
#63D9F3 #F363D9 #D9F363
tetradic
#63D9F3 #C563F3 #F37D63 #91F363
square
#63D9F3 #C563F3 #F37D63 #91F363
split-complementary
#63D9F3 #F36391 #F3C563
monochromatic
#10AACC #2ACBEF #63D9F3 #9CE7F7 #D5F5FC
Accessibility & contrast
On white
1.65
#63D9F3 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
12.75
#63D9F3 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #63D9F3
12.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##63D9F3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##63D9F3 | 1.00 | 1.65 | 12.75 | 12.75 |
| #FFFFFF | 1.65 | 1.00 | 21.00 | 21.00 |
| #000000 | 12.75 | 21.00 | 1.00 | 1.00 |
| ##000000 | 12.75 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#C6D3F5
Deuteranopia (green-blind)
#B1C3F3
Tritanopia (blue-blind)
#00E3E1
Achromatopsia (no color)
#CACACA
Design tokens & code
CSS
--color: #63d9f3; /* rgb */ color: rgb(99, 217, 243); /* oklch */ color: oklch(82.7% 0.111 214.5);
Tailwind
colors: {
custom: {
50: '#9ce5f7',
500: '#63d9f3',
950: '#000000',
},
}SCSS
$custom: #63d9f3; $custom-light: #9ce5f7; $custom-dark: #000000;
JSON
{
"hex": "#63d9f3",
"rgb": {
"r": 99,
"g": 217,
"b": 243
},
"hsl": {
"h": 190.833,
"s": 85.714,
"l": 67.059
},
"oklch": {
"l": 0.82736,
"c": 0.11146,
"h": 214.5
},
"luminance": 0.58749
}Semantic roles & 50–950 ramp
primary
#63D9F3
secondary
#C84D32
accent
#2C03E2
background
#FCFEFF
surface
#F6FCFE
border
#D0D5D6
text
#0F1517
muted
#808485