#406FBB#406FBB
#406FBB is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.6% C 0.130 H 259.6°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #406FBB |
|---|---|
| RGB | rgb(64, 111, 187) |
| HSL | hsl(217, 49%, 49%) |
| HSV | hsv(217, 66%, 73%) |
| CMYK | cmyk(65.8%, 40.6%, 0%, 26.7%) |
| CIE-LAB | lab(47.03, 8.71, -44.81) |
| CIE-LCH | lch(47.03, 45.65, 281.00°) |
| OKLab | oklab(54.6% -0.0235 -0.1277) |
| OKLCH | oklch(54.6% 0.13 259.6) |
| XYZ | xyz(16.7652, 16.0451, 49.2176) |
| Luminance | 0.1605 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
French Blue
#436BAD
ΔE00 2.21
Medium Blue
#2C6FBB
ΔE00 2.65
Mid Blue
#276AB3
ΔE00 3.59
Flat Blue
#3C73A8
ΔE00 3.76
Windows Blue
#3778BF
ΔE00 4.14
Muted Blue
#3B719F
ΔE00 4.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#406FBB #BB8C40
analogous
#40ADBB #406FBB #4F40BB
triadic
#406FBB #BB406F #6FBB40
tetradic
#406FBB #BB40AD #BB8C40 #40BB4F
square
#406FBB #BB40AD #BB8C40 #40BB4F
split-complementary
#406FBB #BB4F40 #ADBB40
monochromatic
#213960 #30548D #406FBB #6C91CD #99B3DC
Accessibility & contrast
On white
4.99
#406FBB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.21
#406FBB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #406FBB
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##406FBB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##406FBB | 1.00 | 4.99 | 4.21 | 4.99 |
| #FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4D76BE
Deuteranopia (green-blind)
#3A6AB9
Tritanopia (blue-blind)
#00808C
Achromatopsia (no color)
#6F6F6F
Design tokens & code
CSS
--color: #406fbb; /* rgb */ color: rgb(64, 111, 187); /* oklch */ color: oklch(54.6% 0.130 259.6);
Tailwind
colors: {
custom: {
50: '#8197d0',
500: '#406fbb',
950: '#000000',
},
}SCSS
$custom: #406fbb; $custom-light: #8197d0; $custom-dark: #000000;
JSON
{
"hex": "#406fbb",
"rgb": {
"r": 64,
"g": 111,
"b": 187
},
"hsl": {
"h": 217.073,
"s": 49.004,
"l": 49.216
},
"oklch": {
"l": 0.54597,
"c": 0.1298,
"h": 259.6
},
"luminance": 0.16047
}Semantic roles & 50–950 ramp
primary
#406FBB
secondary
#C8B28F
accent
#A44FD9
background
#F8F9FC
surface
#F0F2F9
border
#CBCCD2
text
#0B0D14
muted
#7C7E82