#660F76
Closest named color: Purple (#800080). oklch(37.7% 0.167 320.5), rgb(102, 15, 118).
Aa
White text reads best on this color (11.08:1).
About this color
#660F76 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.167 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.057 away. White text reads best on it, at 11.08:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 1.89:1 |
| White text | 11.08:1 |
Values
| HEX | #660F76 |
| RGB | rgb(102, 15, 118) |
| HSL | hsl(291, 77%, 26%) |
| OKLCH | oklch(37.7% 0.167 320.5) |
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 #660F76 | 11.08:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #660F76 | 1.89:1 | Fails | Lc 9.7 | Not readable |
| #660F76 text on white | 11.08:1 | AAA | Lc 94.2 | Preferred for body text |
| #660F76 text on black | 1.89:1 | Fails | Lc -8.3 | 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
#F5E3F9
oklch(93.7% 0.035 320.1)
-
Step 200
200
#EECBF6
oklch(88.5% 0.069 320)
-
Step 300
300
#E5A5F2
oklch(80.8% 0.126 320.7)
-
Step 400
400
#D66FEC
oklch(70.7% 0.201 320.3)
-
Step 500
500
#CA3BE5
oklch(63.1% 0.256 320.7)
-
Step 600
600
#B300CF
oklch(55.7% 0.266 320.6)
-
Step 700
700
#9700AF
oklch(49.1% 0.235 320.6)
-
Step 800
800
#7C0091
oklch(42.6% 0.204 320.3)
-
Step 900
900 (this color)
#660F76
oklch(37.7% 0.167 320.5)
-
Step 950
950
#3C0D45
oklch(27% 0.106 320.7)
#660F76 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) | #003679 | 0.160 |
| Deuteranopia (no green cones) | #1C3F74 | 0.149 |
| Tritanopia (no blue cones) | #662845 | 0.101 |
| Achromatopsia (no color) | #3C3C3C | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660F76
#660F76
oklch(37.7% 0.167 320.5)
- #115000
#115000
oklch(37.7% 0.122 140.4)
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 #660F76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.057
- Rich Purple #720058 ΔE 0.060
- Grape Purple #5D1451 ΔE 0.066
- Royal Purple #4B006E ΔE 0.066
- Indigo #4B0082 ΔE 0.069
- Velvet #750851 ΔE 0.074
- Rebecca Purple #663399 ΔE 0.080
- Dark Magenta #8B008B ΔE 0.083
Use #660F76 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.