#4B63CF#4B63CF
#4B63CF is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.0% C 0.168 H 270.4°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).
Color values
| HEX | #4B63CF |
|---|---|
| RGB | rgb(75, 99, 207) |
| HSL | hsl(229, 58%, 55%) |
| HSV | hsv(229, 64%, 81%) |
| CMYK | cmyk(63.8%, 52.2%, 0%, 18.8%) |
| CIE-LAB | lab(45.53, 25.19, -58.72) |
| CIE-LCH | lch(45.53, 63.89, 293.22°) |
| OKLab | oklab(53.99% 0.0012 -0.1685) |
| OKLCH | oklch(53.99% 0.168 270.4) |
| XYZ | xyz(18.6222, 14.9229, 60.9184) |
| Luminance | 0.1492 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 3.31
Warm Blue
#4B57DB
ΔE00 4.35
Azul
#1D5DEC
ΔE00 4.42
Cornflower Blue
#5170D7
ΔE00 4.61
Dark Periwinkle
#665FD1
ΔE00 5.15
Bright Blue
#0165FC
ΔE00 5.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B63CF #CFB74B
analogous
#4BA5CF #4B63CF #754BCF
triadic
#4B63CF #CF4B63 #63CF4B
tetradic
#4B63CF #CF4BA5 #CFB74B #4BCF75
square
#4B63CF #CF4BA5 #CFB74B #4BCF75
split-complementary
#4B63CF #CF754B #A5CF4B
monochromatic
#22327E #2E46AE #4B63CF #7B8DDC #ACB7E9
Accessibility & contrast
On white
5.27
#4B63CF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.98
#4B63CF on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4B63CF
5.27:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B63CF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4B63CF | 1.00 | 5.27 | 3.98 | 5.27 |
| #FFFFFF | 5.27 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.98 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.27 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2072D3
Deuteranopia (green-blind)
#0066CD
Tritanopia (blue-blind)
#007C8F
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #4b63cf; /* rgb */ color: rgb(75, 99, 207); /* oklch */ color: oklch(54.0% 0.168 270.4);
Tailwind
colors: {
custom: {
50: '#8a8fde',
500: '#4b63cf',
950: '#000000',
},
}SCSS
$custom: #4b63cf; $custom-light: #8a8fde; $custom-dark: #000000;
JSON
{
"hex": "#4b63cf",
"rgb": {
"r": 75,
"g": 99,
"b": 207
},
"hsl": {
"h": 229.091,
"s": 57.895,
"l": 55.294
},
"oklch": {
"l": 0.53989,
"c": 0.16848,
"h": 270.4
},
"luminance": 0.14925
}Semantic roles & 50–950 ramp
primary
#4B63CF
secondary
#D6CC9F
accent
#C547E1
background
#F9F8FD
surface
#F1F0FB
border
#CBCBD4
text
#0D0C15
muted
#7E7D83