#660A4A
Closest named color: Grape Purple (#5D1451). oklch(34.7% 0.138 344.6), rgb(102, 10, 74).
Aa
White text reads best on this color (12.30:1).
About this color
#660A4A is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.138 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.024 away. White text reads best on it, at 12.30:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.138) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.70:1 |
| White text | 12.30:1 |
Values
| HEX | #660A4A |
| RGB | rgb(102, 10, 74) |
| HSL | hsl(318, 82%, 22%) |
| OKLCH | oklch(34.7% 0.138 344.6) |
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 #660A4A | 12.30:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #660A4A | 1.70:1 | Fails | Lc 7.3 | Not readable |
| #660A4A text on white | 12.30:1 | AAA | Lc 96.6 | Preferred for body text |
| #660A4A text on black | 1.70:1 | Fails | Lc 0.0 | 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
#FDF2F8
oklch(97.1% 0.014 343.2)
-
Step 100
100
#F9E2EF
oklch(93.5% 0.03 342.6)
-
Step 200
200
#F6CBE2
oklch(88.6% 0.057 344.9)
-
Step 300
300
#F1A6D0
oklch(81% 0.103 345)
-
Step 400
400
#E671B9
oklch(70.7% 0.166 344.4)
-
Step 500
500
#DB44A7
oklch(63.1% 0.211 344.6)
-
Step 600
600
#C61192
oklch(55.6% 0.23 344.6)
-
Step 700
700
#A9007C
oklch(49.1% 0.209 344.4)
-
Step 800
800
#8B0865
oklch(42.8% 0.177 344.8)
-
Step 900
900 (this color)
#660A4A
oklch(34.7% 0.138 344.6)
-
Step 950
950
#421030
oklch(27.1% 0.087 345.1)
#660A4A 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) | #182B4C | 0.156 |
| Deuteranopia (no green cones) | #353A48 | 0.133 |
| Tritanopia (no blue cones) | #6D082A | 0.059 |
| Achromatopsia (no color) | #353535 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660A4A
#660A4A
oklch(34.7% 0.138 344.6)
- #004530
#004530
oklch(34.6% 0.073 165.2)
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 #660A4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.024
- Velvet #750851 ΔE 0.035
- Rich Purple #720058 ΔE 0.035
- Merlot #730039 ΔE 0.042
- Plum Purple #4E0550 ΔE 0.061
- Wine #80013F ΔE 0.062
- Red Purple #820747 ΔE 0.064
- Burgundy #610023 ΔE 0.066
Use #660A4A 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.