#403CA4#403CA4
#403CA4 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.162 H 278.7°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).
Color values
| HEX | #403CA4 |
|---|---|
| RGB | rgb(64, 60, 164) |
| HSL | hsl(242, 46%, 44%) |
| HSV | hsv(242, 63%, 64%) |
| CMYK | cmyk(61%, 63.4%, 0%, 35.7%) |
| CIE-LAB | lab(31.81, 33.29, -55.76) |
| CIE-LCH | lch(31.81, 64.94, 300.84°) |
| OKLab | oklab(42.59% 0.0245 -0.1604) |
| OKLCH | oklch(42.59% 0.162 278.7) |
| XYZ | xyz(10.4289, 7.0013, 35.9166) |
| Luminance | 0.0700 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blueberry
#464196
ΔE00 3.03
Ocean Blue
#4F42B5
ΔE00 3.55
Sapphire (survey)
#2138AB
ΔE00 3.58
Darkslateblue
#483D8B
ΔE00 4.64
Blue With A Hint Of Purple
#533CC6
ΔE00 5.68
Blue Blue
#2242C7
ΔE00 5.69
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#403CA4 #A0A43C
analogous
#3C6CA4 #403CA4 #743CA4
triadic
#403CA4 #A4403C #3CA440
tetradic
#403CA4 #A43C6C #A0A43C #3CA474
square
#403CA4 #A43C6C #A0A43C #3CA474
split-complementary
#403CA4 #A4743C #6CA43C
monochromatic
#1D1B4A #2F2C77 #403CA4 #5E5AC3 #8A87D3
Accessibility & contrast
On white
8.75
#403CA4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.40
#403CA4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #403CA4
8.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##403CA4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##403CA4 | 1.00 | 8.75 | 2.40 | 8.75 |
| #FFFFFF | 8.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FA7
Deuteranopia (green-blind)
#0047A2
Tritanopia (blue-blind)
#00566A
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #403ca4; /* rgb */ color: rgb(64, 60, 164); /* oklch */ color: oklch(42.6% 0.162 278.7);
Tailwind
colors: {
custom: {
50: '#8072c0',
500: '#403ca4',
950: '#000000',
},
}SCSS
$custom: #403ca4; $custom-light: #8072c0; $custom-dark: #000000;
JSON
{
"hex": "#403ca4",
"rgb": {
"r": 64,
"g": 60,
"b": 164
},
"hsl": {
"h": 242.308,
"s": 46.429,
"l": 43.922
},
"oklch": {
"l": 0.42589,
"c": 0.1623,
"h": 278.7
},
"luminance": 0.07002
}Semantic roles & 50–950 ramp
primary
#403CA4
secondary
#BBBD7E
accent
#D652D1
background
#F8F6FB
surface
#EFECF7
border
#CAC7D0
text
#0B0812
muted
#7C7B81