#403FB0#403FB0
#403FB0 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.175 H 276.9°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).
Color values
| HEX | #403FB0 |
|---|---|
| RGB | rgb(64, 63, 176) |
| HSL | hsl(241, 47%, 47%) |
| HSV | hsv(241, 64%, 69%) |
| CMYK | cmyk(63.6%, 64.2%, 0%, 31%) |
| CIE-LAB | lab(33.52, 35.47, -60.15) |
| CIE-LCH | lch(33.52, 69.83, 300.53°) |
| OKLab | oklab(44.15% 0.021 -0.1733) |
| OKLCH | oklch(44.15% 0.175 276.9) |
| XYZ | xyz(11.7258, 7.7786, 41.9494) |
| Luminance | 0.0778 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ocean Blue
#4F42B5
ΔE00 2.40
Sapphire (survey)
#2138AB
ΔE00 3.69
Blue Blue
#2242C7
ΔE00 4.06
Blueberry
#464196
ΔE00 4.31
Blue With A Hint Of Purple
#533CC6
ΔE00 4.39
Blurple
#5539CC
ΔE00 5.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#403FB0 #AFB03F
analogous
#3F77B0 #403FB0 #793FB0
triadic
#403FB0 #B0403F #3FB040
tetradic
#403FB0 #B03F77 #AFB03F #3FB079
square
#403FB0 #B03F77 #AFB03F #3FB079
split-complementary
#403FB0 #B0793F #77B03F
monochromatic
#1F1F56 #302F83 #403FB0 #6565C8 #9292D8
Accessibility & contrast
On white
8.22
#403FB0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.56
#403FB0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #403FB0
8.22:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##403FB0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##403FB0 | 1.00 | 8.22 | 2.56 | 8.22 |
| #FFFFFF | 8.22 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.56 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.22 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0054B4
Deuteranopia (green-blind)
#004AAE
Tritanopia (blue-blind)
#005C71
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #403fb0; /* rgb */ color: rgb(64, 63, 176); /* oklch */ color: oklch(44.1% 0.175 276.9);
Tailwind
colors: {
custom: {
50: '#8274c9',
500: '#403fb0',
950: '#000000',
},
}SCSS
$custom: #403fb0; $custom-light: #8274c9; $custom-dark: #000000;
JSON
{
"hex": "#403fb0",
"rgb": {
"r": 64,
"g": 63,
"b": 176
},
"hsl": {
"h": 240.531,
"s": 47.28,
"l": 46.863
},
"oklch": {
"l": 0.44148,
"c": 0.17459,
"h": 276.9
},
"luminance": 0.0778
}Semantic roles & 50–950 ramp
primary
#403FB0
secondary
#C3C388
accent
#D751D6
background
#F8F7FC
surface
#F0EDF8
border
#CBC8D1
text
#0C0813
muted
#7D7B82