#663A60
Closest named color: Brownish Purple (#76424E). oklch(41.6% 0.083 332.1), rgb(102, 58, 96).
Aa
White text reads best on this color (8.97:1).
About this color
#663A60 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.083 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.054 away. White text reads best on it, at 8.97:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.33:1 |
| White text | 8.97:1 |
Values
| HEX | #663A60 |
| RGB | rgb(102, 58, 96) |
| HSL | hsl(308, 28%, 31%) |
| OKLCH | oklch(41.6% 0.083 332.1) |
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 #663A60 | 8.97:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #663A60 | 2.33:1 | Fails | Lc 13.6 | Not readable |
| #663A60 text on white | 8.97:1 | AAA | Lc 90.4 | Preferred for body text |
| #663A60 text on black | 2.33:1 | Fails | Lc -11.9 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#F0E7EE
oklch(93.7% 0.013 333)
-
Step 200
200
#E4D3E1
oklch(88.5% 0.026 331.6)
-
Step 300
300
#D4B6CF
oklch(81% 0.048 331.6)
-
Step 400
400
#BE8FB6
oklch(70.7% 0.077 332.4)
-
Step 500
500
#AD73A4
oklch(63.2% 0.098 332.3)
-
Step 600
600
#985A8F
oklch(55.6% 0.108 332.4)
-
Step 700
700
#814A7A
oklch(49.1% 0.1 331.7)
-
Step 800
800 (this color)
#663A60
oklch(41.6% 0.083 332.1)
-
Step 900
900
#563451
oklch(37.7% 0.066 332.2)
-
Step 950
950
#321F2F
oklch(27% 0.04 332.3)
#663A60 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) | #394561 | 0.081 |
| Deuteranopia (no green cones) | #444B5F | 0.073 |
| Tritanopia (no blue cones) | #693D48 | 0.044 |
| Achromatopsia (no color) | #494949 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #663A60
#663A60
oklch(41.6% 0.083 332.1)
- #235935
#235935
oklch(41.7% 0.083 152)
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 #663A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.054
- Purple Brown #673A3F ΔE 0.056
- Dusty Grape #545775 ΔE 0.082
- Dark Mauve #874C62 ΔE 0.085
- Dusk #4E5481 ΔE 0.085
- Velvet #750851 ΔE 0.085
- Grape Purple #5D1451 ΔE 0.087
- Twilight #4E518B ΔE 0.089
Use #663A60 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.