#3F3FA1#3F3FA1
#3F3FA1 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.155 H 277.6°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).
Color values
| HEX | #3F3FA1 |
|---|---|
| RGB | rgb(63, 63, 161) |
| HSL | hsl(240, 44%, 44%) |
| HSV | hsv(240, 61%, 63%) |
| CMYK | cmyk(60.9%, 60.9%, 0%, 36.9%) |
| CIE-LAB | lab(32.22, 30.20, -53.28) |
| CIE-LCH | lch(32.22, 61.25, 299.55°) |
| OKLab | oklab(42.8% 0.0206 -0.1532) |
| OKLCH | oklch(42.8% 0.155 277.6) |
| XYZ | xyz(10.2584, 7.1842, 34.5574) |
| Luminance | 0.0718 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blueberry
#464196
ΔE00 2.33
Sapphire (survey)
#2138AB
ΔE00 3.82
Ocean Blue
#4F42B5
ΔE00 3.90
Darkslateblue
#483D8B
ΔE00 4.31
Blue Blue
#2242C7
ΔE00 5.74
Blue With A Hint Of Purple
#533CC6
ΔE00 6.36
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F3FA1 #A1A13F
analogous
#3F70A1 #3F3FA1 #703FA1
triadic
#3F3FA1 #A13F3F #3FA13F
tetradic
#3F3FA1 #A13F70 #A1A13F #3FA170
square
#3F3FA1 #A13F70 #A1A13F #3FA170
split-complementary
#3F3FA1 #A1703F #70A13F
monochromatic
#1D1D49 #2E2E75 #3F3FA1 #5D5DC0 #8989D1
Accessibility & contrast
On white
8.62
#3F3FA1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.44
#3F3FA1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F3FA1
8.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F3FA1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F3FA1 | 1.00 | 8.62 | 2.44 | 8.62 |
| #FFFFFF | 8.62 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.62 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050A4
Deuteranopia (green-blind)
#00489F
Tritanopia (blue-blind)
#00576A
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #3f3fa1; /* rgb */ color: rgb(63, 63, 161); /* oklch */ color: oklch(42.8% 0.155 277.6);
Tailwind
colors: {
custom: {
50: '#7e74be',
500: '#3f3fa1',
950: '#000000',
},
}SCSS
$custom: #3f3fa1; $custom-light: #7e74be; $custom-dark: #000000;
JSON
{
"hex": "#3f3fa1",
"rgb": {
"r": 63,
"g": 63,
"b": 161
},
"hsl": {
"h": 240,
"s": 43.75,
"l": 43.922
},
"oklch": {
"l": 0.42797,
"c": 0.15455,
"h": 277.6
},
"luminance": 0.07185
}Semantic roles & 50–950 ramp
primary
#3F3FA1
secondary
#BCBC80
accent
#D354D3
background
#F8F7FB
surface
#EFEDF7
border
#CAC8D0
text
#0B0812
muted
#7C7B81