#4063CC#4063CC
#4063CC is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.2% C 0.168 H 266.7°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).
Color values
| HEX | #4063CC |
|---|---|
| RGB | rgb(64, 99, 204) |
| HSL | hsl(225, 58%, 53%) |
| HSV | hsv(225, 69%, 80%) |
| CMYK | cmyk(68.6%, 51.5%, 0%, 20%) |
| CIE-LAB | lab(44.76, 22.39, -58.26) |
| CIE-LCH | lch(44.76, 62.42, 291.02°) |
| OKLab | oklab(53.19% -0.0095 -0.1674) |
| OKLCH | oklch(53.19% 0.168 266.7) |
| XYZ | xyz(17.4715, 14.3716, 58.9683) |
| Luminance | 0.1437 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 3.38
Azul
#1D5DEC
ΔE00 4.14
Cornflower Blue
#5170D7
ΔE00 4.95
French Blue
#436BAD
ΔE00 4.95
Denim
#1560BD
ΔE00 5.17
Warm Blue
#4B57DB
ΔE00 5.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4063CC #CCA940
analogous
#40A9CC #4063CC #6340CC
triadic
#4063CC #CC4063 #63CC40
tetradic
#4063CC #CC40A9 #CCA940 #40CC63
square
#4063CC #CC40A9 #CCA940 #40CC63
split-complementary
#4063CC #CC6340 #A9CC40
monochromatic
#1F3473 #2C49A3 #4063CC #708AD9 #A1B2E6
Accessibility & contrast
On white
5.42
#4063CC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.87
#4063CC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4063CC
5.42:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4063CC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4063CC | 1.00 | 5.42 | 3.87 | 5.42 |
| #FFFFFF | 5.42 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.87 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.42 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2171D0
Deuteranopia (green-blind)
#0064CA
Tritanopia (blue-blind)
#007C8E
Achromatopsia (no color)
#6A6A6A
Design tokens & code
CSS
--color: #4063cc; /* rgb */ color: rgb(64, 99, 204); /* oklch */ color: oklch(53.2% 0.168 266.7);
Tailwind
colors: {
custom: {
50: '#858edc',
500: '#4063cc',
950: '#000000',
},
}SCSS
$custom: #4063cc; $custom-light: #858edc; $custom-dark: #000000;
JSON
{
"hex": "#4063cc",
"rgb": {
"r": 64,
"g": 99,
"b": 204
},
"hsl": {
"h": 225,
"s": 57.851,
"l": 52.549
},
"oklch": {
"l": 0.53192,
"c": 0.16764,
"h": 266.7
},
"luminance": 0.14373
}Semantic roles & 50–950 ramp
primary
#4063CC
secondary
#D2C395
accent
#BA47E1
background
#F8F8FD
surface
#F0F0FB
border
#CBCBD4
text
#0C0C15
muted
#7D7D83