#664366
Closest named color: Brownish Purple (#76424E). oklch(43.6% 0.071 326.7), rgb(102, 67, 102).
Aa
White text reads best on this color (8.20:1).
About this color
#664366 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.071 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.049 away. White text reads best on it, at 8.20:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #664366 |
| RGB | rgb(102, 67, 102) |
| HSL | hsl(300, 21%, 33%) |
| OKLCH | oklch(43.6% 0.071 326.7) |
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 #664366 | 8.20:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #664366 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #664366 text on white | 8.20:1 | AAA | Lc 88.3 | Fine for body text |
| #664366 text on black | 2.55:1 | Fails | Lc -13.9 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EEE7EE
oklch(93.5% 0.012 325.7)
-
Step 200
200
#E2D4E1
oklch(88.5% 0.023 328)
-
Step 300
300
#D0B8CF
oklch(81% 0.041 327.2)
-
Step 400
400
#B792B7
oklch(70.6% 0.068 326.3)
-
Step 500
500
#A577A5
oklch(63.1% 0.086 326.5)
-
Step 600
600
#905F90
oklch(55.6% 0.094 326.7)
-
Step 700
700
#7A4F7A
oklch(49.1% 0.085 326.8)
-
Step 800
800 (this color)
#664366
oklch(43.6% 0.071 326.7)
-
Step 900
900
#513751
oklch(37.7% 0.055 326.6)
-
Step 950
950
#30202F
oklch(27% 0.036 328.6)
#664366 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) | #414C67 | 0.065 |
| Deuteranopia (no green cones) | #495165 | 0.061 |
| Tritanopia (no blue cones) | #684650 | 0.041 |
| Achromatopsia (no color) | #4F4F4F | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664366
#664366
oklch(43.6% 0.071 326.7)
- #355C3A
#355C3A
oklch(43.6% 0.071 147.3)
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 #664366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.049
- Dusty Grape #545775 ΔE 0.060
- Purple Brown #673A3F ΔE 0.062
- Dusk #4E5481 ΔE 0.065
- Dark Mauve #874C62 ΔE 0.071
- Twilight #4E518B ΔE 0.073
- YInMn Blue #415A77 ΔE 0.081
- Light Eggplant #894585 ΔE 0.083
Use #664366 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.