#661C65
Closest named color: Rich Purple (#720058). oklch(37.6% 0.139 328.5), rgb(102, 28, 101).
Aa
White text reads best on this color (10.94:1).
About this color
#661C65 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.139 and its hue 328°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.040 away. White text reads best on it, at 10.94:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #661C65 |
| RGB | rgb(102, 28, 101) |
| HSL | hsl(301, 57%, 25%) |
| OKLCH | oklch(37.6% 0.139 328.5) |
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 #661C65 | 10.94:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #661C65 | 1.91:1 | Fails | Lc 9.5 | Not readable |
| #661C65 text on white | 10.94:1 | AAA | Lc 94.4 | Preferred for body text |
| #661C65 text on black | 1.91:1 | Fails | Lc -8.1 | 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
#EFCCED
oklch(88.5% 0.058 327.9)
-
Step 300
300
#E6A9E2
oklch(81% 0.103 328.7)
-
Step 400
400
#D777D4
oklch(70.7% 0.166 328.3)
-
Step 500
500
#CA4CC8
oklch(63% 0.213 328.4)
-
Step 600
600
#B525B4
oklch(55.5% 0.23 328.5)
-
Step 700
700
#9C129B
oklch(49.1% 0.215 328.6)
-
Step 800
800
#7F167E
oklch(42.8% 0.178 328.6)
-
Step 900
900 (this color)
#661C65
oklch(37.6% 0.139 328.5)
-
Step 950
950
#3C123B
oklch(26.9% 0.088 328.6)
#661C65 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) | #113667 | 0.147 |
| Deuteranopia (no green cones) | #304063 | 0.124 |
| Tritanopia (no blue cones) | #69263E | 0.076 |
| Achromatopsia (no color) | #3D3D3D | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661C65
#661C65
oklch(37.6% 0.139 328.5)
- #00501D
#00501D
oklch(37.6% 0.108 148.5)
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 #661C65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.040
- Grape Purple #5D1451 ΔE 0.040
- Velvet #750851 ΔE 0.049
- Purple #800080 ΔE 0.071
- Plum Purple #4E0550 ΔE 0.074
- Royal Purple #4B006E ΔE 0.079
- Red Purple #820747 ΔE 0.080
- Merlot #730039 ΔE 0.081
Use #661C65 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.