#66366A
Closest named color: Brownish Purple (#76424E). oklch(41.5% 0.101 324.3), rgb(102, 54, 106).
Aa
White text reads best on this color (9.12:1).
About this color
#66366A is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.101 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.074 away. White text reads best on it, at 9.12:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.30:1 |
| White text | 9.12:1 |
Values
| HEX | #66366A |
| RGB | rgb(102, 54, 106) |
| HSL | hsl(295, 33%, 31%) |
| OKLCH | oklch(41.5% 0.101 324.3) |
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 #66366A | 9.12:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #66366A | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #66366A text on white | 9.12:1 | AAA | Lc 90.7 | Preferred for body text |
| #66366A text on black | 2.30:1 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#F0E6F0
oklch(93.6% 0.017 325.7)
-
Step 200
200
#E5D2E6
oklch(88.5% 0.034 324.3)
-
Step 300
300
#D4B4D6
oklch(80.8% 0.059 324.3)
-
Step 400
400
#BE8CC2
oklch(70.6% 0.095 324)
-
Step 500
500
#AD6FB2
oklch(63.1% 0.12 324.2)
-
Step 600
600
#98559E
oklch(55.5% 0.132 324.1)
-
Step 700
700
#824587
oklch(49.1% 0.123 324.4)
-
Step 800
800 (this color)
#66366A
oklch(41.5% 0.101 324.3)
-
Step 900
900
#563259
oklch(37.7% 0.079 324.2)
-
Step 950
950
#321D34
oklch(26.8% 0.051 323.8)
#66366A 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) | #30446C | 0.095 |
| Deuteranopia (no green cones) | #3E4A68 | 0.085 |
| Tritanopia (no blue cones) | #683C4B | 0.060 |
| Achromatopsia (no color) | #484848 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66366A
#66366A
oklch(41.5% 0.101 324.3)
- #225925
#225925
oklch(41.4% 0.101 144.4)
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 #66366A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.074
- Purple Brown #673A3F ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.077
- Rebecca Purple #663399 ΔE 0.079
- Velvet #750851 ΔE 0.080
- Grape Purple #5D1451 ΔE 0.081
- Rich Purple #720058 ΔE 0.082
- Twilight #4E518B ΔE 0.087
Use #66366A 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.