#636AEC#636AEC
#636AEC is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.9% C 0.193 H 276.4°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).
Color values
| HEX | #636AEC |
|---|---|
| RGB | rgb(99, 106, 236) |
| HSL | hsl(237, 78%, 66%) |
| HSV | hsv(237, 58%, 93%) |
| CMYK | cmyk(58.1%, 55.1%, 0%, 7.5%) |
| CIE-LAB | lab(50.70, 34.69, -66.71) |
| CIE-LCH | lch(50.70, 75.19, 297.47°) |
| OKLab | oklab(58.88% 0.0215 -0.1913) |
| OKLCH | oklch(58.88% 0.193 276.4) |
| XYZ | xyz(25.4351, 19.0150, 81.6705) |
| Luminance | 0.1902 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Mediumslateblue
#7B68EE
ΔE00 4.19
Cornflower
#6A79F7
ΔE00 5.06
Cornflower Blue
#5170D7
ΔE00 5.16
Royal Blue
#4169E1
ΔE00 5.31
Dark Periwinkle
#665FD1
ΔE00 5.35
Bright Blue
#0165FC
ΔE00 6.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#636AEC #ECE563
analogous
#63AFEC #636AEC #A063EC
triadic
#636AEC #EC636A #6AEC63
tetradic
#636AEC #EC63AF #ECE563 #63ECA0
square
#636AEC #EC63AF #ECE563 #63ECA0
split-complementary
#636AEC #ECA063 #AFEC63
monochromatic
#1720BE #2C36E5 #636AEC #9A9EF3 #D0D2F9
Accessibility & contrast
On white
4.37
#636AEC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.80
#636AEC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #636AEC
4.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##636AEC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##636AEC | 1.00 | 4.37 | 4.80 | 4.80 |
| #FFFFFF | 4.37 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.80 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.80 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#007FF0
Deuteranopia (green-blind)
#0073E9
Tritanopia (blue-blind)
#0089A1
Achromatopsia (no color)
#797979
Design tokens & code
CSS
--color: #636aec; /* rgb */ color: rgb(99, 106, 236); /* oklch */ color: oklch(58.9% 0.193 276.4);
Tailwind
colors: {
custom: {
50: '#9b94f3',
500: '#636aec',
950: '#000000',
},
}SCSS
$custom: #636aec; $custom-light: #9b94f3; $custom-dark: #000000;
JSON
{
"hex": "#636aec",
"rgb": {
"r": 99,
"g": 106,
"b": 236
},
"hsl": {
"h": 236.934,
"s": 78.286,
"l": 65.686
},
"oklch": {
"l": 0.58878,
"c": 0.19254,
"h": 276.4
},
"luminance": 0.19017
}Semantic roles & 50–950 ramp
primary
#636AEC
secondary
#ECEABF
accent
#D00BDB
background
#FAF9FE
surface
#F4F1FD
border
#CECBD5
text
#0F0D17
muted
#7F7E85