#403BA5#403BA5
#403BA5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.165 H 278.8°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).
Color values
| HEX | #403BA5 |
|---|---|
| RGB | rgb(64, 59, 165) |
| HSL | hsl(243, 47%, 44%) |
| HSV | hsv(243, 64%, 65%) |
| CMYK | cmyk(61.2%, 64.2%, 0%, 35.3%) |
| CIE-LAB | lab(31.66, 34.25, -56.61) |
| CIE-LCH | lch(31.66, 66.17, 301.18°) |
| OKLab | oklab(42.5% 0.0253 -0.163) |
| OKLCH | oklch(42.5% 0.165 278.8) |
| XYZ | xyz(10.4677, 6.9338, 36.3768) |
| Luminance | 0.0693 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blueberry
#464196
ΔE00 3.32
Sapphire (survey)
#2138AB
ΔE00 3.52
Ocean Blue
#4F42B5
ΔE00 3.54
Darkslateblue
#483D8B
ΔE00 4.83
Blue With A Hint Of Purple
#533CC6
ΔE00 5.52
Blue Blue
#2242C7
ΔE00 5.68
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#403BA5 #A0A53B
analogous
#3B6BA5 #403BA5 #753BA5
triadic
#403BA5 #A5403B #3BA540
tetradic
#403BA5 #A53B6B #A0A53B #3BA575
square
#403BA5 #A53B6B #A0A53B #3BA575
split-complementary
#403BA5 #A5753B #6BA53B
monochromatic
#1D1B4B #2F2B78 #403BA5 #5E59C4 #8A86D4
Accessibility & contrast
On white
8.80
#403BA5 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.39
#403BA5 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #403BA5
8.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##403BA5 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##403BA5 | 1.00 | 8.80 | 2.39 | 8.80 |
| #FFFFFF | 8.80 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.39 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.80 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FA8
Deuteranopia (green-blind)
#0046A3
Tritanopia (blue-blind)
#00566A
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #403ba5; /* rgb */ color: rgb(64, 59, 165); /* oklch */ color: oklch(42.5% 0.165 278.8);
Tailwind
colors: {
custom: {
50: '#8071c1',
500: '#403ba5',
950: '#000000',
},
}SCSS
$custom: #403ba5; $custom-light: #8071c1; $custom-dark: #000000;
JSON
{
"hex": "#403ba5",
"rgb": {
"r": 64,
"g": 59,
"b": 165
},
"hsl": {
"h": 242.83,
"s": 47.321,
"l": 43.922
},
"oklch": {
"l": 0.42502,
"c": 0.16491,
"h": 278.8
},
"luminance": 0.06935
}Semantic roles & 50–950 ramp
primary
#403BA5
secondary
#BBBE7E
accent
#D751D1
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0812
muted
#7C7B81