#4B63DD#4B63DD
#4B63DD is a mid, vivid blue. Relative luminance 0.156; OKLCH L 55.0% C 0.187 H 270.6°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).
Color values
| HEX | #4B63DD |
|---|---|
| RGB | rgb(75, 99, 221) |
| HSL | hsl(230, 68%, 58%) |
| HSV | hsv(230, 66%, 87%) |
| CMYK | cmyk(66.1%, 55.2%, 0%, 13.3%) |
| CIE-LAB | lab(46.50, 30.04, -65.14) |
| CIE-LCH | lch(46.50, 71.73, 294.75°) |
| OKLab | oklab(55.02% 0.002 -0.1874) |
| OKLCH | oklch(55.02% 0.187 270.6) |
| XYZ | xyz(20.4102, 15.6381, 70.3354) |
| Luminance | 0.1564 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 2.68
Azul
#1D5DEC
ΔE00 3.69
Warm Blue
#4B57DB
ΔE00 3.93
Cornflower Blue
#5170D7
ΔE00 4.49
Bright Blue
#0165FC
ΔE00 4.70
Dark Periwinkle
#665FD1
ΔE00 4.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B63DD #DDC54B
analogous
#4BACDD #4B63DD #7C4BDD
triadic
#4B63DD #DD4B63 #63DD4B
tetradic
#4B63DD #DD4BAC #DDC54B #4BDD7C
square
#4B63DD #DD4BAC #DDC54B #4BDD7C
split-complementary
#4B63DD #DD7C4B #ACDD4B
monochromatic
#1C2F92 #2540C5 #4B63DD #7E90E7 #B2BCF0
Accessibility & contrast
On white
5.09
#4B63DD on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.13
#4B63DD on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4B63DD
5.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B63DD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4B63DD | 1.00 | 5.09 | 4.13 | 5.09 |
| #FFFFFF | 5.09 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.13 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.09 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0075E1
Deuteranopia (green-blind)
#0068DB
Tritanopia (blue-blind)
#008096
Achromatopsia (no color)
#6E6E6E
Design tokens & code
CSS
--color: #4b63dd; /* rgb */ color: rgb(75, 99, 221); /* oklch */ color: oklch(55.0% 0.187 270.6);
Tailwind
colors: {
custom: {
50: '#8d8fe8',
500: '#4b63dd',
950: '#000000',
},
}SCSS
$custom: #4b63dd; $custom-light: #8d8fe8; $custom-dark: #000000;
JSON
{
"hex": "#4b63dd",
"rgb": {
"r": 75,
"g": 99,
"b": 221
},
"hsl": {
"h": 230.137,
"s": 68.224,
"l": 58.039
},
"oklch": {
"l": 0.55024,
"c": 0.18738,
"h": 270.6
},
"luminance": 0.1564
}Semantic roles & 50–950 ramp
primary
#4B63DD
secondary
#DFD5A5
accent
#CE3DEB
background
#F9F8FE
surface
#F2F0FD
border
#CCCBD5
text
#0D0C16
muted
#7E7D84