#407DDB#407DDB
#407DDB is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.7% C 0.157 H 258.9°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).
Color values
| HEX | #407DDB |
|---|---|
| RGB | rgb(64, 125, 219) |
| HSL | hsl(216, 68%, 55%) |
| HSV | hsv(216, 71%, 86%) |
| CMYK | cmyk(70.8%, 42.9%, 0%, 14.1%) |
| CIE-LAB | lab(52.81, 11.48, -53.87) |
| CIE-LCH | lch(52.81, 55.08, 282.03°) |
| OKLab | oklab(59.66% -0.0303 -0.154) |
| OKLCH | oklch(59.66% 0.157 258.9) |
| XYZ | xyz(22.2295, 20.8693, 69.8607) |
| Luminance | 0.2087 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Clear Blue
#247AFD
ΔE00 3.37
Azure
#007FFF
ΔE00 3.56
Deep Sky Blue
#0D75F8
ΔE00 3.68
Dodger Blue
#3E82FC
ΔE00 4.00
Windows Blue
#3778BF
ΔE00 4.20
Lightish Blue
#3D7AFD
ΔE00 4.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#407DDB #DB9E40
analogous
#40CBDB #407DDB #5040DB
triadic
#407DDB #DB407D #7DDB40
tetradic
#407DDB #DB40CB #DB9E40 #40DB50
square
#407DDB #DB40CB #DB9E40 #40DB50
split-complementary
#407DDB #DB5040 #CBDB40
monochromatic
#194587 #235FBB #407DDB #73A0E5 #A7C3EE
Accessibility & contrast
On white
4.06
#407DDB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.17
#407DDB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #407DDB
5.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##407DDB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##407DDB | 1.00 | 4.06 | 5.17 | 5.17 |
| #FFFFFF | 4.06 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.17 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.17 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4F86DF
Deuteranopia (green-blind)
#3477D9
Tritanopia (blue-blind)
#0093A1
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #407ddb; /* rgb */ color: rgb(64, 125, 219); /* oklch */ color: oklch(59.7% 0.157 258.9);
Tailwind
colors: {
custom: {
50: '#87a2e7',
500: '#407ddb',
950: '#000000',
},
}SCSS
$custom: #407ddb; $custom-light: #87a2e7; $custom-dark: #000000;
JSON
{
"hex": "#407ddb",
"rgb": {
"r": 64,
"g": 125,
"b": 219
},
"hsl": {
"h": 216.387,
"s": 68.282,
"l": 55.49
},
"oklch": {
"l": 0.59657,
"c": 0.15699,
"h": 258.9
},
"luminance": 0.20872
}Semantic roles & 50–950 ramp
primary
#407DDB
secondary
#DCC29B
accent
#A63DEB
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0F16
muted
#7E7E84