#645ABC#645ABC
#645ABC is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.7% C 0.149 H 284.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).
Color values
| HEX | #645ABC |
|---|---|
| RGB | rgb(100, 90, 188) |
| HSL | hsl(246, 42%, 55%) |
| HSV | hsv(246, 52%, 74%) |
| CMYK | cmyk(46.8%, 52.1%, 0%, 26.3%) |
| CIE-LAB | lab(43.73, 29.60, -50.55) |
| CIE-LCH | lch(43.73, 58.58, 300.36°) |
| OKLab | oklab(52.68% 0.0378 -0.1439) |
| OKLCH | oklch(52.68% 0.149 284.7) |
| XYZ | xyz(17.9861, 13.6517, 49.2545) |
| Luminance | 0.1365 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Iris
#6258C4
ΔE00 1.49
Slate Blue
#6A5ACD
ΔE00 2.79
Light Indigo
#6D5ACF
ΔE00 3.29
Dark Periwinkle
#665FD1
ΔE00 3.55
Warm Blue
#4B57DB
ΔE00 5.83
Royal Purple
#7851A9
ΔE00 6.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#645ABC #B2BC5A
analogous
#5A81BC #645ABC #955ABC
triadic
#645ABC #BC645A #5ABC64
tetradic
#645ABC #BC5A81 #B2BC5A #5ABC95
square
#645ABC #BC5A81 #B2BC5A #5ABC95
split-complementary
#645ABC #BC955A #81BC5A
monochromatic
#342D6F #483F9A #645ABC #8D86CE #B6B1DF
Accessibility & contrast
On white
5.63
#645ABC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.73
#645ABC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #645ABC
5.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##645ABC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##645ABC | 1.00 | 5.63 | 3.73 | 5.63 |
| #FFFFFF | 5.63 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.73 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.63 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2B6ABF
Deuteranopia (green-blind)
#2764BA
Tritanopia (blue-blind)
#476F82
Achromatopsia (no color)
#676767
Design tokens & code
CSS
--color: #645abc; /* rgb */ color: rgb(100, 90, 188); /* oklch */ color: oklch(52.7% 0.149 284.7);
Tailwind
colors: {
custom: {
50: '#9689d1',
500: '#645abc',
950: '#000000',
},
}SCSS
$custom: #645abc; $custom-light: #9689d1; $custom-dark: #000000;
JSON
{
"hex": "#645abc",
"rgb": {
"r": 100,
"g": 90,
"b": 188
},
"hsl": {
"h": 246.122,
"s": 42.241,
"l": 54.51
},
"oklch": {
"l": 0.52684,
"c": 0.14877,
"h": 284.7
},
"luminance": 0.13652
}Semantic roles & 50–950 ramp
primary
#645ABC
secondary
#C9CEA4
accent
#D256C5
background
#F9F8FC
surface
#F2F0F9
border
#CCCBD2
text
#0E0B14
muted
#7E7C82