#40409A#40409A
#40409A is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.143 H 278.4°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).
Color values
| HEX | #40409A |
|---|---|
| RGB | rgb(64, 64, 154) |
| HSL | hsl(240, 41%, 43%) |
| HSV | hsv(240, 58%, 60%) |
| CMYK | cmyk(58.4%, 58.4%, 0%, 39.6%) |
| CIE-LAB | lab(32.01, 27.35, -49.39) |
| CIE-LCH | lch(32.01, 56.46, 298.98°) |
| OKLab | oklab(42.49% 0.0209 -0.1417) |
| OKLCH | oklch(42.49% 0.143 278.4) |
| XYZ | xyz(9.7786, 7.0892, 31.4186) |
| Luminance | 0.0709 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blueberry
#464196
ΔE00 1.35
Darkslateblue
#483D8B
ΔE00 3.38
Sapphire (survey)
#2138AB
ΔE00 4.65
Ocean Blue
#4F42B5
ΔE00 4.75
Blue Blue
#2242C7
ΔE00 6.76
Twilight
#4E518B
ΔE00 7.04
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#40409A #9A9A40
analogous
#406D9A #40409A #6D409A
triadic
#40409A #9A4040 #409A40
tetradic
#40409A #9A406D #9A9A40 #409A6D
square
#40409A #9A406D #9A9A40 #409A6D
split-complementary
#40409A #9A6D40 #6D9A40
monochromatic
#1C1C44 #2E2E6F #40409A #5C5CBB #8787CD
Accessibility & contrast
On white
8.68
#40409A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.42
#40409A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #40409A
8.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##40409A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##40409A | 1.00 | 8.68 | 2.42 | 8.68 |
| #FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004F9D
Deuteranopia (green-blind)
#004898
Tritanopia (blue-blind)
#095566
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #40409a; /* rgb */ color: rgb(64, 64, 154); /* oklch */ color: oklch(42.5% 0.143 278.4);
Tailwind
colors: {
custom: {
50: '#7e75b8',
500: '#40409a',
950: '#000000',
},
}SCSS
$custom: #40409a; $custom-light: #7e75b8; $custom-dark: #000000;
JSON
{
"hex": "#40409a",
"rgb": {
"r": 64,
"g": 64,
"b": 154
},
"hsl": {
"h": 240,
"s": 41.284,
"l": 42.745
},
"oklch": {
"l": 0.42489,
"c": 0.14323,
"h": 278.4
},
"luminance": 0.0709
}Semantic roles & 50–950 ramp
primary
#40409A
secondary
#B8B87E
accent
#D157D1
background
#F8F7FB
surface
#EFEDF6
border
#CAC8D0
text
#0B0811
muted
#7C7B80