#331D64#331D64
#331D64 is a dark, moderate violet. Relative luminance 0.025; OKLCH L 30.5% C 0.118 H 292.2°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).
Color values
| HEX | #331D64 |
|---|---|
| RGB | rgb(51, 29, 100) |
| HSL | hsl(259, 55%, 25%) |
| HSV | hsv(259, 71%, 39%) |
| CMYK | cmyk(49%, 71%, 0%, 60.8%) |
| CIE-LAB | lab(17.93, 29.17, -38.24) |
| CIE-LCH | lch(17.93, 48.09, 307.33°) |
| OKLab | oklab(30.52% 0.0446 -0.1094) |
| OKLCH | oklch(30.52% 0.118 292.2) |
| XYZ | xyz(4.1042, 2.5025, 12.3209) |
| Luminance | 0.0250 (WCAG relative) |
| Temperature | cool |
| Family | violet |
Closest named colors
Midnight Blue
#191970
ΔE00 5.08
Dark Indigo
#1F0954
ΔE00 5.27
Royal Purple (survey)
#4B006E
ΔE00 7.06
Darkblue (survey)
#030764
ΔE00 7.27
Indigo (survey)
#380282
ΔE00 7.30
Dark Royal Blue
#02066F
ΔE00 7.68
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#331D64 #4E641D
analogous
#1D2A64 #331D64 #571D64
triadic
#331D64 #64331D #1D6433
tetradic
#331D64 #641D2A #4E641D #1D6457
square
#331D64 #641D2A #4E641D #1D6457
split-complementary
#331D64 #64571D #2A641D
monochromatic
#0C0718 #1B0F35 #331D64 #4B2B93 #6339C3
Accessibility & contrast
On white
13.99
#331D64 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.50
#331D64 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #331D64
13.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##331D64 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##331D64 | 1.00 | 13.99 | 1.50 | 13.99 |
| #FFFFFF | 13.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 13.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002D66
Deuteranopia (green-blind)
#002A63
Tritanopia (blue-blind)
#242E3D
Achromatopsia (no color)
#2C2C2C
Design tokens & code
CSS
--color: #331d64; /* rgb */ color: rgb(51, 29, 100); /* oklch */ color: oklch(30.5% 0.118 292.2);
Tailwind
colors: {
custom: {
50: '#705a91',
500: '#331d64',
950: '#000000',
},
}SCSS
$custom: #331d64; $custom-light: #705a91; $custom-dark: #000000;
JSON
{
"hex": "#331d64",
"rgb": {
"r": 51,
"g": 29,
"b": 100
},
"hsl": {
"h": 258.592,
"s": 55.039,
"l": 25.294
},
"oklch": {
"l": 0.30518,
"c": 0.11818,
"h": 292.2
},
"luminance": 0.02503
}Semantic roles & 50–950 ramp
primary
#331D64
secondary
#7F9944
accent
#DE49B0
background
#F7F5F8
surface
#EDE9F0
border
#C8C5CB
text
#08040D
muted
#7B797D