#6B3366
Closest named color: Velvet (#750851). oklch(41.5% 0.106 330.7), rgb(107, 51, 102).
Aa
White text reads best on this color (9.16:1).
About this color
#6B3366 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.106 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Velvet (#750851), ΔE 0.069 away. White text reads best on it, at 9.16:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Velvet (#750851) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #6B3366 |
| RGB | rgb(107, 51, 102) |
| HSL | hsl(305, 35%, 31%) |
| OKLCH | oklch(41.5% 0.106 330.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6B3366 | 9.16:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #6B3366 | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #6B3366 text on white | 9.16:1 | AAA | Lc 90.8 | Preferred for body text |
| #6B3366 text on black | 2.29:1 | Fails | Lc -11.6 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F9F3F8
oklch(97% 0.009 330.9)
-
Step 100
100
#F1E6EF
oklch(93.6% 0.017 331.6)
-
Step 200
200
#E7D1E4
oklch(88.4% 0.035 330.3)
-
Step 300
300
#D9B3D3
oklch(81% 0.061 331.5)
-
Step 400
400
#C48ABD
oklch(70.7% 0.098 330.8)
-
Step 500
500
#B46BAD
oklch(63.1% 0.127 330.5)
-
Step 600
600
#9F5198
oklch(55.5% 0.138 330.7)
-
Step 700
700
#884282
oklch(49.1% 0.127 330.6)
-
Step 800
800 (this color)
#6B3366
oklch(41.5% 0.106 330.7)
-
Step 900
900
#5A3056
oklch(37.8% 0.082 330.6)
-
Step 950
950
#351C32
oklch(27% 0.053 331.4)
#6B3366 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #304368 | 0.106 |
| Deuteranopia (no green cones) | #414B64 | 0.095 |
| Tritanopia (no blue cones) | #6F3848 | 0.057 |
| Achromatopsia (no color) | #484848 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3366
#6B3366
oklch(41.5% 0.106 330.7)
- #0C5B2B
#0C5B2B
oklch(41.4% 0.106 150.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6B3366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.069
- Brownish Purple #76424E ΔE 0.070
- Rich Purple #720058 ΔE 0.073
- Purple Brown #673A3F ΔE 0.074
- Grape Purple #5D1451 ΔE 0.077
- Red Purple #820747 ΔE 0.081
- Rebecca Purple #663399 ΔE 0.086
- Light Eggplant #894585 ΔE 0.086
Use #6B3366 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.