#6563CC#6563CC
#6563CC is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.5% C 0.158 H 280.8°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #6563CC |
|---|---|
| RGB | rgb(101, 99, 204) |
| HSL | hsl(241, 51%, 59%) |
| HSV | hsv(241, 51%, 80%) |
| CMYK | cmyk(50.5%, 51.5%, 0%, 20%) |
| CIE-LAB | lab(47.04, 29.23, -54.48) |
| CIE-LCH | lch(47.04, 61.82, 298.21°) |
| OKLab | oklab(55.51% 0.0296 -0.1554) |
| OKLCH | oklch(55.51% 0.158 280.8) |
| XYZ | xyz(20.7244, 16.0489, 59.1207) |
| Luminance | 0.1605 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Periwinkle
#665FD1
ΔE00 1.55
Slate Blue
#6A5ACD
ΔE00 3.22
Light Indigo
#6D5ACF
ΔE00 3.51
Iris
#6258C4
ΔE00 3.71
Warm Blue
#4B57DB
ΔE00 5.30
Mediumslateblue
#7B68EE
ΔE00 6.44
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#6563CC #CACC63
analogous
#6396CC #6563CC #9A63CC
triadic
#6563CC #CC6563 #63CC65
tetradic
#6563CC #CC6396 #CACC63 #63CC9A
square
#6563CC #CC6396 #CACC63 #63CC9A
split-complementary
#6563CC #CC9A63 #96CC63
monochromatic
#2E2C88 #3E3CB6 #6563CC #9391DB #C0BFEA
Accessibility & contrast
On white
4.99
#6563CC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.21
#6563CC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #6563CC
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##6563CC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##6563CC | 1.00 | 4.99 | 4.21 | 4.99 |
| #FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2E73D0
Deuteranopia (green-blind)
#246CCA
Tritanopia (blue-blind)
#3C7A8E
Achromatopsia (no color)
#707070
Design tokens & code
CSS
--color: #6563cc; /* rgb */ color: rgb(101, 99, 204); /* oklch */ color: oklch(55.5% 0.158 280.8);
Tailwind
colors: {
custom: {
50: '#988fdc',
500: '#6563cc',
950: '#000000',
},
}SCSS
$custom: #6563cc; $custom-light: #988fdc; $custom-dark: #000000;
JSON
{
"hex": "#6563cc",
"rgb": {
"r": 101,
"g": 99,
"b": 204
},
"hsl": {
"h": 241.143,
"s": 50.725,
"l": 59.412
},
"oklch": {
"l": 0.55505,
"c": 0.15815,
"h": 280.8
},
"luminance": 0.1605
}Semantic roles & 50–950 ramp
primary
#6563CC
secondary
#D9DAB1
accent
#DA4ED8
background
#F9F8FD
surface
#F2F0FB
border
#CCCBD4
text
#0E0C15
muted
#7E7D83