#636BFD#636BFD
#636BFD is a mid, highly saturated blue. Relative luminance 0.203; OKLCH L 60.3% C 0.213 H 275.6°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).
Color values
| HEX | #636BFD |
|---|---|
| RGB | rgb(99, 107, 253) |
| HSL | hsl(237, 97%, 69%) |
| HSV | hsv(237, 61%, 99%) |
| CMYK | cmyk(60.9%, 57.7%, 0%, 0.8%) |
| CIE-LAB | lab(52.13, 39.54, -73.88) |
| CIE-LCH | lch(52.13, 83.79, 298.16°) |
| OKLab | oklab(60.31% 0.0207 -0.2124) |
| OKLCH | oklch(60.31% 0.213 275.6) |
| XYZ | xyz(28.1271, 20.2576, 95.3374) |
| Luminance | 0.2026 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower
#6A79F7
ΔE00 4.33
Mediumslateblue
#7B68EE
ΔE00 4.33
Cornflower Blue
#5170D7
ΔE00 6.50
Royal Blue
#4169E1
ΔE00 6.54
Bright Blue
#0165FC
ΔE00 7.24
Dark Periwinkle
#665FD1
ΔE00 7.28
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#636BFD #FDF563
analogous
#63B8FD #636BFD #A863FD
triadic
#636BFD #FD636B #6BFD63
tetradic
#636BFD #FD63B8 #FDF563 #63FDA8
square
#636BFD #FD63B8 #FDF563 #63FDA8
split-complementary
#636BFD #FDA863 #B8FD63
monochromatic
#030FE3 #2732FC #636BFD #9FA4FE #DCDEFF
Accessibility & contrast
On white
4.16
#636BFD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.05
#636BFD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #636BFD
5.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##636BFD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##636BFD | 1.00 | 4.16 | 5.05 | 5.05 |
| #FFFFFF | 4.16 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0083FF
Deuteranopia (green-blind)
#0076FA
Tritanopia (blue-blind)
#008EAA
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #636bfd; /* rgb */ color: rgb(99, 107, 253); /* oklch */ color: oklch(60.3% 0.213 275.6);
Tailwind
colors: {
custom: {
50: '#9d95ff',
500: '#636bfd',
950: '#000000',
},
}SCSS
$custom: #636bfd; $custom-light: #9d95ff; $custom-dark: #000000;
JSON
{
"hex": "#636bfd",
"rgb": {
"r": 99,
"g": 107,
"b": 253
},
"hsl": {
"h": 236.883,
"s": 97.468,
"l": 69.02
},
"oklch": {
"l": 0.6031,
"c": 0.21342,
"h": 275.6
},
"luminance": 0.2026
}Semantic roles & 50–950 ramp
primary
#636BFD
secondary
#F4F2C7
accent
#DA00E6
background
#FAF9FF
surface
#F4F1FF
border
#CECBD7
text
#100D18
muted
#7F7E86