#660A79
Closest named color: Purple (#800080). oklch(37.7% 0.173 319.4), rgb(102, 10, 121).
Aa
White text reads best on this color (11.14:1).
About this color
#660A79 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.173 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.056 away. White text reads best on it, at 11.14:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 1.88:1 |
| White text | 11.14:1 |
Values
| HEX | #660A79 |
| RGB | rgb(102, 10, 121) |
| HSL | hsl(290, 85%, 26%) |
| OKLCH | oklch(37.7% 0.173 319.4) |
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 #660A79 | 11.14:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #660A79 | 1.88:1 | Fails | Lc 9.7 | Not readable |
| #660A79 text on white | 11.14:1 | AAA | Lc 94.2 | Preferred for body text |
| #660A79 text on black | 1.88:1 | Fails | Lc -8.4 | 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
#FBF2FD
oklch(97.1% 0.017 320.1)
-
Step 100
100
#F5E2FA
oklch(93.5% 0.038 319.2)
-
Step 200
200
#EECAF8
oklch(88.4% 0.073 318.8)
-
Step 300
300
#E5A5F5
oklch(80.9% 0.129 319.5)
-
Step 400
400
#D66DF0
oklch(70.6% 0.208 319.3)
-
Step 500
500
#CA37EB
oklch(63.2% 0.265 319.3)
-
Step 600
600
#B100D2
oklch(55.6% 0.268 319.3)
-
Step 700
700
#9600B2
oklch(49.2% 0.237 319.4)
-
Step 800
800
#7B0093
oklch(42.6% 0.206 319.1)
-
Step 900
900 (this color)
#660A79
oklch(37.7% 0.173 319.4)
-
Step 950
950
#3C0C47
oklch(27% 0.109 319.3)
#660A79 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) | #00367C | 0.161 |
| Deuteranopia (no green cones) | #163E77 | 0.154 |
| Tritanopia (no blue cones) | #662746 | 0.105 |
| Achromatopsia (no color) | #3B3B3B | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660A79
#660A79
oklch(37.7% 0.173 319.4)
- #164F00
#164F00
oklch(37.6% 0.119 139.4)
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 #660A79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.056
- Rich Purple #720058 ΔE 0.065
- Royal Purple #4B006E ΔE 0.065
- Indigo #4B0082 ΔE 0.066
- Grape Purple #5D1451 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.079
- Velvet #750851 ΔE 0.080
- Dark Magenta #8B008B ΔE 0.083
Use #660A79 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.