#661C5E
Closest named color: Grape Purple (#5D1451). oklch(37.2% 0.133 332.6), rgb(102, 28, 94).
Aa
White text reads best on this color (11.09:1).
About this color
#661C5E is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.133 and its hue 333°. 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 11.09:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.89:1 |
| White text | 11.09:1 |
Values
| HEX | #661C5E |
| RGB | rgb(102, 28, 94) |
| HSL | hsl(306, 57%, 25%) |
| OKLCH | oklch(37.2% 0.133 332.6) |
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 #661C5E | 11.09:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #661C5E | 1.89:1 | Fails | Lc 9.1 | Not readable |
| #661C5E text on white | 11.09:1 | AAA | Lc 94.8 | Preferred for body text |
| #661C5E text on black | 1.89:1 | Fails | Lc -7.8 | 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
#F6E3F2
oklch(93.5% 0.029 332.8)
-
Step 200
200
#F0CCE9
oklch(88.4% 0.055 332.7)
-
Step 300
300
#E7A9DD
oklch(80.9% 0.099 332.2)
-
Step 400
400
#D977CB
oklch(70.6% 0.16 332.6)
-
Step 500
500
#CC4EBE
oklch(63% 0.204 332.3)
-
Step 600
600
#B829AA
oklch(55.7% 0.221 332.6)
-
Step 700
700
#9E1892
oklch(49.2% 0.206 332.5)
-
Step 800
800
#801976
oklch(42.7% 0.17 332.6)
-
Step 900
900 (this color)
#661C5E
oklch(37.2% 0.133 332.6)
-
Step 950
950
#3D1338
oklch(27% 0.084 332.6)
#661C5E 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) | #193560 | 0.142 |
| Deuteranopia (no green cones) | #333F5C | 0.121 |
| Tritanopia (no blue cones) | #6B233A | 0.070 |
| Achromatopsia (no color) | #3C3C3C | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661C5E
#661C5E
oklch(37.2% 0.133 332.6)
- #004E25
#004E25
oklch(37.1% 0.097 152.4)
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 #661C5E, 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 0.036
- Velvet #750851 ΔE 0.041
- Merlot #730039 ΔE 0.070
- Plum Purple #4E0550 ΔE 0.071
- Red Purple #820747 ΔE 0.072
- Wine #80013F ΔE 0.077
- Purple #800080 ΔE 0.079
Use #661C5E 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.