#661F5B
Closest named color: Grape Purple (#5D1451). oklch(37.4% 0.126 334.5), rgb(102, 31, 91).
Aa
White text reads best on this color (10.98:1).
About this color
#661F5B is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.126 and its hue 335°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.032 away. White text reads best on it, at 10.98:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.91:1 |
| White text | 10.98:1 |
Values
| HEX | #661F5B |
| RGB | rgb(102, 31, 91) |
| HSL | hsl(309, 53%, 26%) |
| OKLCH | oklch(37.4% 0.126 334.5) |
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 #661F5B | 10.98:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #661F5B | 1.91:1 | Fails | Lc 9.3 | Not readable |
| #661F5B text on white | 10.98:1 | AAA | Lc 94.6 | Preferred for body text |
| #661F5B text on black | 1.91:1 | Fails | Lc -8.0 | 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
#FBF2F9
oklch(97% 0.013 333)
-
Step 100
100
#F6E3F1
oklch(93.5% 0.028 334.9)
-
Step 200
200
#F0CDE7
oklch(88.6% 0.052 335.1)
-
Step 300
300
#E7AAD9
oklch(80.9% 0.094 334.8)
-
Step 400
400
#D879C6
oklch(70.6% 0.151 334.5)
-
Step 500
500
#CC52B8
oklch(63.2% 0.194 334.5)
-
Step 600
600
#B72FA3
oklch(55.6% 0.21 334.8)
-
Step 700
700
#9D1F8C
oklch(49.1% 0.196 334.5)
-
Step 800
800
#801E72
oklch(42.8% 0.162 334.6)
-
Step 900
900 (this color)
#661F5B
oklch(37.4% 0.126 334.5)
-
Step 950
950
#3D1436
oklch(27.1% 0.081 334.7)
#661F5B 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) | #1E365D | 0.135 |
| Deuteranopia (no green cones) | #364059 | 0.116 |
| Tritanopia (no blue cones) | #6B243A | 0.063 |
| Achromatopsia (no color) | #3C3C3C | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661F5B
#661F5B
oklch(37.4% 0.126 334.5)
- #004E29
#004E29
oklch(37.2% 0.093 154.6)
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 #661F5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.032
- Rich Purple #720058 ΔE 0.038
- Velvet #750851 ΔE 0.040
- Merlot #730039 ΔE 0.066
- Red Purple #820747 ΔE 0.069
- Wine #80013F ΔE 0.073
- Plum Purple #4E0550 ΔE 0.074
- Purple #800080 ΔE 0.084
Use #661F5B 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.