#660E55
Closest named color: Grape Purple (#5D1451). oklch(35.5% 0.142 337.8), rgb(102, 14, 85).
Aa
White text reads best on this color (11.93:1).
About this color
#660E55 is a dark, vivid purple. In OKLCH its lightness is 35%, its chroma 0.142 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.021 away. White text reads best on it, at 11.93:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.75:1 |
| White text | 11.93:1 |
Values
| HEX | #660E55 |
| RGB | rgb(102, 14, 85) |
| HSL | hsl(312, 76%, 23%) |
| OKLCH | oklch(35.5% 0.142 337.8) |
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 #660E55 | 11.93:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #660E55 | 1.75:1 | Fails | Lc 7.9 | Not readable |
| #660E55 text on white | 11.93:1 | AAA | Lc 96.0 | Preferred for body text |
| #660E55 text on black | 1.75:1 | 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
#FCF2F9
oklch(97.1% 0.014 336.1)
-
Step 100
100
#F8E2F1
oklch(93.5% 0.031 337.3)
-
Step 200
200
#F4CBE7
oklch(88.5% 0.059 337.8)
-
Step 300
300
#EEA6D9
oklch(81% 0.107 337.8)
-
Step 400
400
#E272C5
oklch(70.8% 0.17 338)
-
Step 500
500
#D644B6
oklch(63.1% 0.217 337.9)
-
Step 600
600
#C112A2
oklch(55.6% 0.236 337.8)
-
Step 700
700
#A5008A
oklch(49.1% 0.215 337.7)
-
Step 800
800
#870871
oklch(42.7% 0.182 337.6)
-
Step 900
900 (this color)
#660E55
oklch(35.5% 0.142 337.8)
-
Step 950
950
#401035
oklch(27% 0.089 338.1)
#660E55 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) | #122E57 | 0.159 |
| Deuteranopia (no green cones) | #323C53 | 0.135 |
| Tritanopia (no blue cones) | #6C1431 | 0.069 |
| Achromatopsia (no color) | #373737 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660E55
#660E55
oklch(35.5% 0.142 337.8)
- #00482A
#00482A
oklch(35.4% 0.083 157.9)
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 #660E55, closest first.
No curated palette has a color within ΔE 0.04 of #660E55.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.021
- Rich Purple #720058 ΔE 0.027
- Velvet #750851 ΔE 0.034
- Merlot #730039 ΔE 0.057
- Plum Purple #4E0550 ΔE 0.059
- Red Purple #820747 ΔE 0.069
- Wine #80013F ΔE 0.071
- Deep Violet #490648 ΔE 0.072
Use #660E55 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.