#646DF0#646DF0
#646DF0 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 59.8% C 0.194 H 275.9°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #646DF0 |
|---|---|
| RGB | rgb(100, 109, 240) |
| HSL | hsl(236, 82%, 67%) |
| HSV | hsv(236, 58%, 94%) |
| CMYK | cmyk(58.3%, 54.6%, 0%, 5.9%) |
| CIE-LAB | lab(51.76, 34.34, -67.23) |
| CIE-LCH | lch(51.76, 75.49, 297.06°) |
| OKLab | oklab(59.77% 0.0199 -0.1928) |
| OKLCH | oklch(59.77% 0.194 275.9) |
| XYZ | xyz(26.4473, 19.9359, 84.8755) |
| Luminance | 0.1994 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower
#6A79F7
ΔE00 3.95
Mediumslateblue
#7B68EE
ΔE00 4.36
Cornflower Blue
#5170D7
ΔE00 5.18
Royal Blue
#4169E1
ΔE00 5.67
Dark Periwinkle
#665FD1
ΔE00 6.44
Bright Blue
#0165FC
ΔE00 7.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#646DF0 #F0E764
analogous
#64B3F0 #646DF0 #A164F0
triadic
#646DF0 #F0646D #6DF064
tetradic
#646DF0 #F064B3 #F0E764 #64F0A1
square
#646DF0 #F064B3 #F0E764 #64F0A1
split-complementary
#646DF0 #F0A164 #B3F064
monochromatic
#131FC6 #2C38EB #646DF0 #9CA2F5 #D4D6FB
Accessibility & contrast
On white
4.21
#646DF0 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.99
#646DF0 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #646DF0
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##646DF0 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##646DF0 | 1.00 | 4.21 | 4.99 | 4.99 |
| #FFFFFF | 4.21 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0681F4
Deuteranopia (green-blind)
#0076ED
Tritanopia (blue-blind)
#008CA4
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #646df0; /* rgb */ color: rgb(100, 109, 240); /* oklch */ color: oklch(59.8% 0.194 275.9);
Tailwind
colors: {
custom: {
50: '#9c96f6',
500: '#646df0',
950: '#000000',
},
}SCSS
$custom: #646df0; $custom-light: #9c96f6; $custom-dark: #000000;
JSON
{
"hex": "#646df0",
"rgb": {
"r": 100,
"g": 109,
"b": 240
},
"hsl": {
"h": 236.143,
"s": 82.353,
"l": 66.667
},
"oklch": {
"l": 0.59772,
"c": 0.19384,
"h": 275.9
},
"luminance": 0.19938
}Semantic roles & 50–950 ramp
primary
#646DF0
secondary
#EEECC1
accent
#D107DF
background
#FAF9FF
surface
#F4F2FF
border
#CECCD7
text
#0F0D17
muted
#7F7E85