#647EEB#647EEB
#647EEB is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.6% C 0.166 H 270.9°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).
Color values
| HEX | #647EEB |
|---|---|
| RGB | rgb(100, 126, 235) |
| HSL | hsl(228, 77%, 66%) |
| HSV | hsv(228, 57%, 92%) |
| CMYK | cmyk(57.4%, 46.4%, 0%, 7.8%) |
| CIE-LAB | lab(55.71, 22.42, -58.08) |
| CIE-LCH | lch(55.71, 62.26, 291.11°) |
| OKLab | oklab(62.65% 0.0025 -0.1657) |
| OKLCH | oklch(62.65% 0.166 270.9) |
| XYZ | xyz(27.7068, 23.6270, 81.6816) |
| Luminance | 0.2363 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower
#6A79F7
ΔE00 2.79
Soft Blue
#6488EA
ΔE00 3.45
Lightish Blue
#3D7AFD
ΔE00 4.45
Dodger Blue
#3E82FC
ΔE00 5.29
Cornflower Blue
#5170D7
ΔE00 5.82
Clear Blue
#247AFD
ΔE00 6.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#647EEB #EBD164
analogous
#64C2EB #647EEB #8D64EB
triadic
#647EEB #EB647E #7EEB64
tetradic
#647EEB #EB64C2 #EBD164 #64EB8D
square
#647EEB #EB64C2 #EBD164 #64EB8D
split-complementary
#647EEB #EB8D64 #C2EB64
monochromatic
#1838BC #2E51E4 #647EEB #9AABF2 #D0D8F9
Accessibility & contrast
On white
3.67
#647EEB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.73
#647EEB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #647EEB
5.73:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##647EEB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##647EEB | 1.00 | 3.67 | 5.73 | 5.73 |
| #FFFFFF | 3.67 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.73 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.73 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4A8CEF
Deuteranopia (green-blind)
#3680E9
Tritanopia (blue-blind)
#0096A9
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #647eeb; /* rgb */ color: rgb(100, 126, 235); /* oklch */ color: oklch(62.6% 0.166 270.9);
Tailwind
colors: {
custom: {
50: '#9aa3f2',
500: '#647eeb',
950: '#000000',
},
}SCSS
$custom: #647eeb; $custom-light: #9aa3f2; $custom-dark: #000000;
JSON
{
"hex": "#647eeb",
"rgb": {
"r": 100,
"g": 126,
"b": 235
},
"hsl": {
"h": 228.444,
"s": 77.143,
"l": 65.686
},
"oklch": {
"l": 0.62649,
"c": 0.16577,
"h": 270.9
},
"luminance": 0.23629
}Semantic roles & 50–950 ramp
primary
#647EEB
secondary
#ECE3BF
accent
#B20CD9
background
#FAF9FE
surface
#F3F2FD
border
#CDCCD5
text
#0F0F17
muted
#7F7E85