#6B3166
Closest named color: Velvet (#750851). oklch(41.1% 0.11 330.7), rgb(107, 49, 102).
Aa
White text reads best on this color (9.30:1).
About this color
#6B3166 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.110 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Velvet (#750851), ΔE 0.066 away. White text reads best on it, at 9.30:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Velvet (#750851) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #6B3166 |
| RGB | rgb(107, 49, 102) |
| HSL | hsl(305, 37%, 31%) |
| OKLCH | oklch(41.1% 0.11 330.7) |
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 #6B3166 | 9.30:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #6B3166 | 2.25:1 | Fails | Lc 12.9 | Not readable |
| #6B3166 text on white | 9.30:1 | AAA | Lc 91.1 | Preferred for body text |
| #6B3166 text on black | 2.25:1 | Fails | Lc -11.3 | 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
#F2E6F0
oklch(93.7% 0.018 331.1)
-
Step 200
200
#E8D1E4
oklch(88.5% 0.036 331.6)
-
Step 300
300
#D9B2D4
oklch(80.8% 0.064 330.4)
-
Step 400
400
#C589BE
oklch(70.7% 0.101 330.7)
-
Step 500
500
#B66AAE
oklch(63.2% 0.131 330.9)
-
Step 600
600
#A1509A
oklch(55.7% 0.143 330.6)
-
Step 700
700
#894083
oklch(49% 0.132 330.6)
-
Step 800
800 (this color)
#6B3166
oklch(41.1% 0.11 330.7)
-
Step 900
900
#5B2F56
oklch(37.7% 0.085 331.4)
-
Step 950
950
#351C33
oklch(27% 0.054 329.9)
#6B3166 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) | #2E4268 | 0.110 |
| Deuteranopia (no green cones) | #3F4A64 | 0.099 |
| Tritanopia (no blue cones) | #6F3647 | 0.059 |
| Achromatopsia (no color) | #474747 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3166
#6B3166
oklch(41.1% 0.11 330.7)
- #035B29
#035B29
oklch(41.3% 0.11 150.7)
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 #6B3166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.066
- Rich Purple #720058 ΔE 0.069
- Grape Purple #5D1451 ΔE 0.073
- Brownish Purple #76424E ΔE 0.073
- Purple Brown #673A3F ΔE 0.076
- Red Purple #820747 ΔE 0.079
- Purple #800080 ΔE 0.084
- Rebecca Purple #663399 ΔE 0.086
Use #6B3166 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.