#4066CC#4066CC
#4066CC is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.8% C 0.164 H 265.8°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #4066CC |
|---|---|
| RGB | rgb(64, 102, 204) |
| HSL | hsl(224, 58%, 53%) |
| HSV | hsv(224, 69%, 80%) |
| CMYK | cmyk(68.6%, 50%, 0%, 20%) |
| CIE-LAB | lab(45.57, 20.48, -56.96) |
| CIE-LCH | lch(45.57, 60.53, 289.78°) |
| OKLab | oklab(53.8% -0.0121 -0.1635) |
| OKLCH | oklch(53.8% 0.164 265.8) |
| XYZ | xyz(17.7610, 14.9506, 59.0648) |
| Luminance | 0.1495 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal Blue
#4169E1
ΔE00 2.92
Cornflower Blue
#5170D7
ΔE00 4.18
French Blue
#436BAD
ΔE00 4.31
Azul
#1D5DEC
ΔE00 4.60
Denim
#1560BD
ΔE00 5.11
Bright Blue
#0165FC
ΔE00 5.36
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4066CC #CCA640
analogous
#40ACCC #4066CC #6040CC
triadic
#4066CC #CC4066 #66CC40
tetradic
#4066CC #CC40AC #CCA640 #40CC60
square
#4066CC #CC40AC #CCA640 #40CC60
split-complementary
#4066CC #CC6040 #ACCC40
monochromatic
#1F3673 #2C4CA3 #4066CC #708DD9 #A1B3E6
Accessibility & contrast
On white
5.26
#4066CC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.99
#4066CC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4066CC
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4066CC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4066CC | 1.00 | 5.26 | 3.99 | 5.26 |
| #FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2B73D0
Deuteranopia (green-blind)
#0066CA
Tritanopia (blue-blind)
#007E8F
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #4066cc; /* rgb */ color: rgb(64, 102, 204); /* oklch */ color: oklch(53.8% 0.164 265.8);
Tailwind
colors: {
custom: {
50: '#8591dc',
500: '#4066cc',
950: '#000000',
},
}SCSS
$custom: #4066cc; $custom-light: #8591dc; $custom-dark: #000000;
JSON
{
"hex": "#4066cc",
"rgb": {
"r": 64,
"g": 102,
"b": 204
},
"hsl": {
"h": 223.714,
"s": 57.851,
"l": 52.549
},
"oklch": {
"l": 0.53804,
"c": 0.16395,
"h": 265.8
},
"luminance": 0.14952
}Semantic roles & 50–950 ramp
primary
#4066CC
secondary
#D2C295
accent
#B747E1
background
#F8F8FD
surface
#F0F0FB
border
#CBCBD4
text
#0C0C15
muted
#7D7D83