#661A64
Closest named color: Rich Purple (#720058). oklch(37.4% 0.14 329.1), rgb(102, 26, 100).
Aa
White text reads best on this color (11.07:1).
About this color
#661A64 is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.140 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.038 away. White text reads best on it, at 11.07:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.89:1 |
| White text | 11.07:1 |
Values
| HEX | #661A64 |
| RGB | rgb(102, 26, 100) |
| HSL | hsl(302, 59%, 25%) |
| OKLCH | oklch(37.4% 0.14 329.1) |
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 #661A64 | 11.07:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #661A64 | 1.89:1 | Fails | Lc 9.3 | Not readable |
| #661A64 text on white | 11.07:1 | AAA | Lc 94.7 | Preferred for body text |
| #661A64 text on black | 1.89:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#FBF2FA
oklch(97% 0.014 329.1)
-
Step 100
100
#F6E3F4
oklch(93.6% 0.03 329.1)
-
Step 200
200
#F0CCEC
oklch(88.5% 0.058 329.7)
-
Step 300
300
#E7A8E2
oklch(80.9% 0.105 329.2)
-
Step 400
400
#D876D3
oklch(70.7% 0.168 329.1)
-
Step 500
500
#CC4BC7
oklch(63.2% 0.215 329.3)
-
Step 600
600
#B721B4
oklch(55.6% 0.234 329.1)
-
Step 700
700
#9D0E9B
oklch(49.1% 0.218 329)
-
Step 800
800
#80147E
oklch(42.8% 0.18 329)
-
Step 900
900 (this color)
#661A64
oklch(37.4% 0.14 329.1)
-
Step 950
950
#3D123B
oklch(27.1% 0.089 329.6)
#661A64 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) | #103566 | 0.149 |
| Deuteranopia (no green cones) | #2F3F62 | 0.127 |
| Tritanopia (no blue cones) | #6A243D | 0.077 |
| Achromatopsia (no color) | #3C3C3C | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661A64
#661A64
oklch(37.4% 0.14 329.1)
- #004F1E
#004F1E
oklch(37.3% 0.105 149)
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 #661A64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.038
- Grape Purple #5D1451 ΔE 0.038
- Velvet #750851 ΔE 0.047
- Purple #800080 ΔE 0.071
- Plum Purple #4E0550 ΔE 0.072
- Royal Purple #4B006E ΔE 0.078
- Merlot #730039 ΔE 0.079
- Red Purple #820747 ΔE 0.079
Use #661A64 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.