#4D63BB#4D63BB
#4D63BB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.7% C 0.140 H 270.4°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).
Color values
| HEX | #4D63BB |
|---|---|
| RGB | rgb(77, 99, 187) |
| HSL | hsl(228, 45%, 52%) |
| HSV | hsv(228, 59%, 73%) |
| CMYK | cmyk(58.8%, 47.1%, 0%, 26.7%) |
| CIE-LAB | lab(44.36, 18.69, -49.05) |
| CIE-LCH | lch(44.36, 52.49, 290.87°) |
| OKLab | oklab(52.72% 0.0011 -0.14) |
| OKLCH | oklch(52.72% 0.14 270.4) |
| XYZ | xyz(16.4891, 14.0880, 48.8544) |
| Luminance | 0.1409 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
French Blue
#436BAD
ΔE00 4.75
Royal Blue
#4169E1
ΔE00 5.42
Dusky Blue
#475F94
ΔE00 5.69
Cornflower Blue
#5170D7
ΔE00 5.85
Warm Blue
#4B57DB
ΔE00 6.04
Dark Periwinkle
#665FD1
ΔE00 6.26
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4D63BB #BBA54D
analogous
#4D9ABB #4D63BB #6E4DBB
triadic
#4D63BB #BB4D63 #63BB4D
tetradic
#4D63BB #BB4D9A #BBA54D #4DBB6E
square
#4D63BB #BB4D9A #BBA54D #4DBB6E
split-complementary
#4D63BB #BB6E4D #9ABB4D
monochromatic
#273466 #384A93 #4D63BB #798ACC #A6B1DD
Accessibility & contrast
On white
5.50
#4D63BB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.82
#4D63BB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4D63BB
5.50:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4D63BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4D63BB | 1.00 | 5.50 | 3.82 | 5.50 |
| #FFFFFF | 5.50 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.82 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.50 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#396EBE
Deuteranopia (green-blind)
#2864B9
Tritanopia (blue-blind)
#007786
Achromatopsia (no color)
#696969
Design tokens & code
CSS
--color: #4d63bb; /* rgb */ color: rgb(77, 99, 187); /* oklch */ color: oklch(52.7% 0.140 270.4);
Tailwind
colors: {
custom: {
50: '#888fd0',
500: '#4d63bb',
950: '#000000',
},
}SCSS
$custom: #4d63bb; $custom-light: #888fd0; $custom-dark: #000000;
JSON
{
"hex": "#4d63bb",
"rgb": {
"r": 77,
"g": 99,
"b": 187
},
"hsl": {
"h": 228,
"s": 44.715,
"l": 51.765
},
"oklch": {
"l": 0.52721,
"c": 0.13999,
"h": 270.4
},
"luminance": 0.14089
}Semantic roles & 50–950 ramp
primary
#4D63BB
secondary
#CAC09A
accent
#BB53D4
background
#F8F8FC
surface
#F0F0F9
border
#CBCBD2
text
#0C0C14
muted
#7D7D82