#66185C
Closest named color: Grape Purple (#5D1451). oklch(36.7% 0.136 333.7), rgb(102, 24, 92).
Aa
White text reads best on this color (11.35:1).
About this color
#66185C is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.136 and its hue 334°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.028 away. White text reads best on it, at 11.35:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.85:1 |
| White text | 11.35:1 |
Values
| HEX | #66185C |
| RGB | rgb(102, 24, 92) |
| HSL | hsl(308, 62%, 25%) |
| OKLCH | oklch(36.7% 0.136 333.7) |
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 #66185C | 11.35:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #66185C | 1.85:1 | Fails | Lc 8.7 | Not readable |
| #66185C text on white | 11.35:1 | AAA | Lc 95.2 | Preferred for body text |
| #66185C text on black | 1.85:1 | Fails | Lc -7.5 | 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
#F7E3F2
oklch(93.6% 0.029 334.4)
-
Step 200
200
#F1CCE9
oklch(88.5% 0.056 333.6)
-
Step 300
300
#E9A8DC
oklch(80.9% 0.102 333.8)
-
Step 400
400
#DC76CB
oklch(70.8% 0.163 333.7)
-
Step 500
500
#CF4BBD
oklch(63.1% 0.209 333.6)
-
Step 600
600
#BA22A9
oklch(55.5% 0.227 333.5)
-
Step 700
700
#A01091
oklch(49.1% 0.211 333.6)
-
Step 800
800
#821476
oklch(42.7% 0.176 333.4)
-
Step 900
900 (this color)
#66185C
oklch(36.7% 0.136 333.7)
-
Step 950
950
#3E1238
oklch(27.1% 0.087 333.4)
#66185C 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) | #16335E | 0.148 |
| Deuteranopia (no green cones) | #323E5A | 0.126 |
| Tritanopia (no blue cones) | #6B1F38 | 0.069 |
| Achromatopsia (no color) | #3A3A3A | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66185C
#66185C
oklch(36.7% 0.136 333.7)
- #004C27
#004C27
oklch(36.6% 0.092 154.1)
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 #66185C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.028
- Rich Purple #720058 ΔE 0.031
- Velvet #750851 ΔE 0.038
- Plum Purple #4E0550 ΔE 0.066
- Merlot #730039 ΔE 0.066
- Red Purple #820747 ΔE 0.071
- Wine #80013F ΔE 0.075
- Purple #800080 ΔE 0.080
Use #66185C 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.