#3F20BB#3F20BB
#3F20BB is a dark, highly saturated violet. Relative luminance 0.057; OKLCH L 40.9% C 0.219 H 279.7°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).
Color values
| HEX | #3F20BB |
|---|---|
| RGB | rgb(63, 32, 187) |
| HSL | hsl(252, 71%, 43%) |
| HSV | hsv(252, 83%, 73%) |
| CMYK | cmyk(66.3%, 82.9%, 0%, 26.7%) |
| CIE-LAB | lab(28.58, 55.37, -74.81) |
| CIE-LCH | lch(28.58, 93.08, 306.51°) |
| OKLab | oklab(40.95% 0.037 -0.216) |
| OKLCH | oklch(40.95% 0.219 279.7) |
| XYZ | xyz(11.5332, 5.6767, 47.4920) |
| Luminance | 0.0568 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 2.06
Violet Blue
#510AC9
ΔE00 3.23
True Blue
#010FCC
ΔE00 3.91
Ultramarine Blue
#1805DB
ΔE00 4.34
Mediumblue
#0000CD
ΔE00 4.55
Purple Blue
#5D21D0
ΔE00 4.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F20BB #9CBB20
analogous
#204EBB #3F20BB #8C20BB
triadic
#3F20BB #BB3F20 #20BB3F
tetradic
#3F20BB #BB204E #9CBB20 #20BB8C
square
#3F20BB #BB204E #9CBB20 #20BB8C
split-complementary
#3F20BB #BB8C20 #4EBB20
monochromatic
#1C0E52 #2D1787 #3F20BB #5B3BDD #876FE6
Accessibility & contrast
On white
9.83
#3F20BB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.14
#3F20BB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F20BB
9.83:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F20BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F20BB | 1.00 | 9.83 | 2.14 | 9.83 |
| #FFFFFF | 9.83 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.14 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.83 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0049BF
Deuteranopia (green-blind)
#003DB8
Tritanopia (blue-blind)
#005170
Achromatopsia (no color)
#434343
Design tokens & code
CSS
--color: #3f20bb; /* rgb */ color: rgb(63, 32, 187); /* oklch */ color: oklch(40.9% 0.219 279.7);
Tailwind
colors: {
custom: {
50: '#8662d1',
500: '#3f20bb',
950: '#000000',
},
}SCSS
$custom: #3f20bb; $custom-light: #8662d1; $custom-dark: #000000;
JSON
{
"hex": "#3f20bb",
"rgb": {
"r": 63,
"g": 32,
"b": 187
},
"hsl": {
"h": 252,
"s": 70.776,
"l": 42.941
},
"oklch": {
"l": 0.40945,
"c": 0.21913,
"h": 279.7
},
"luminance": 0.05678
}Semantic roles & 50–950 ramp
primary
#3F20BB
secondary
#B9CD6A
accent
#EE3ACA
background
#F9F6FD
surface
#F1EBFA
border
#CBC6D3
text
#0D0514
muted
#7E7A83