#661D6E
Closest named color: Rich Purple (#720058). oklch(38.3% 0.145 323.6), rgb(102, 29, 110).
Aa
White text reads best on this color (10.68:1).
About this color
#661D6E is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.145 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.051 away. White text reads best on it, at 10.68:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #661D6E |
| RGB | rgb(102, 29, 110) |
| HSL | hsl(294, 58%, 27%) |
| OKLCH | oklch(38.3% 0.145 323.6) |
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 #661D6E | 10.68:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #661D6E | 1.96:1 | Fails | Lc 10.0 | Not readable |
| #661D6E text on white | 10.68:1 | AAA | Lc 93.9 | Preferred for body text |
| #661D6E text on black | 1.96:1 | Fails | Lc -8.7 | 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 900.
-
Step 50
50
#FBF2FB
oklch(97.1% 0.015 325.7)
-
Step 100
100
#F5E3F6
oklch(93.6% 0.032 324.2)
-
Step 200
200
#EECCF0
oklch(88.5% 0.061 324.3)
-
Step 300
300
#E3A9E9
oklch(80.9% 0.108 323.3)
-
Step 400
400
#D476DE
oklch(70.7% 0.175 323.6)
-
Step 500
500
#C74BD4
oklch(63.2% 0.223 323.8)
-
Step 600
600
#B220C1
oklch(55.6% 0.243 323.7)
-
Step 700
700
#990BA7
oklch(49.2% 0.226 323.6)
-
Step 800
800
#7C1387
oklch(42.7% 0.186 323.6)
-
Step 900
900 (this color)
#661D6E
oklch(38.3% 0.145 323.6)
-
Step 950
950
#3B123F
oklch(27% 0.092 324.1)
#661D6E 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) | #043970 | 0.151 |
| Deuteranopia (no green cones) | #2B416C | 0.127 |
| Tritanopia (no blue cones) | #682B43 | 0.086 |
| Achromatopsia (no color) | #3E3E3E | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661D6E
#661D6E
oklch(38.3% 0.145 323.6)
- #005309
#005309
oklch(38.4% 0.126 143.7)
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 #661D6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.051
- Grape Purple #5D1451 ΔE 0.054
- Velvet #750851 ΔE 0.061
- Purple #800080 ΔE 0.063
- Royal Purple #4B006E ΔE 0.076
- Rebecca Purple #663399 ΔE 0.080
- Plum Purple #4E0550 ΔE 0.082
- Indigo #4B0082 ΔE 0.083
Use #661D6E 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.