#661958
Closest named color: Grape Purple (#5D1451). oklch(36.6% 0.132 336.3), rgb(102, 25, 88).
Aa
White text reads best on this color (11.38:1).
About this color
#661958 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.132 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.025 away. White text reads best on it, at 11.38:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.84:1 |
| White text | 11.38:1 |
Values
| HEX | #661958 |
| RGB | rgb(102, 25, 88) |
| HSL | hsl(311, 61%, 25%) |
| OKLCH | oklch(36.6% 0.132 336.3) |
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 #661958 | 11.38:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #661958 | 1.84:1 | Fails | Lc 8.6 | Not readable |
| #661958 text on white | 11.38:1 | AAA | Lc 95.3 | Preferred for body text |
| #661958 text on black | 1.84:1 | Fails | Lc -7.4 | 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
#FCF2F9
oklch(97.1% 0.014 336.1)
-
Step 100
100
#F7E3F1
oklch(93.6% 0.028 336.4)
-
Step 200
200
#F2CCE7
oklch(88.5% 0.055 336.5)
-
Step 300
300
#EAA8D9
oklch(80.9% 0.1 336.2)
-
Step 400
400
#DC77C5
oklch(70.7% 0.157 336.3)
-
Step 500
500
#D04DB6
oklch(63.1% 0.202 336.4)
-
Step 600
600
#BB26A2
oklch(55.5% 0.22 336.2)
-
Step 700
700
#A1158B
oklch(49.1% 0.205 336.2)
-
Step 800
800
#831771
oklch(42.7% 0.17 336.2)
-
Step 900
900 (this color)
#661958
oklch(36.6% 0.132 336.3)
-
Step 950
950
#3E1335
oklch(27% 0.082 336.7)
#661958 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) | #1A335A | 0.144 |
| Deuteranopia (no green cones) | #343E56 | 0.124 |
| Tritanopia (no blue cones) | #6C1E36 | 0.065 |
| Achromatopsia (no color) | #3A3A3A | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661958
#661958
oklch(36.6% 0.132 336.3)
- #004C2A
#004C2A
oklch(36.6% 0.089 156)
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 #661958, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.025
- Rich Purple #720058 ΔE 0.032
- Velvet #750851 ΔE 0.036
- Merlot #730039 ΔE 0.060
- Plum Purple #4E0550 ΔE 0.067
- Red Purple #820747 ΔE 0.067
- Wine #80013F ΔE 0.071
- Deep Violet #490648 ΔE 0.079
Use #661958 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.