#661B4F
Closest named color: Grape Purple (#5D1451). oklch(36.3% 0.122 342.5), rgb(102, 27, 79).
Aa
White text reads best on this color (11.44:1).
About this color
#661B4F is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.122 and its hue 342°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.027 away. White text reads best on it, at 11.44:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.83:1 |
| White text | 11.44:1 |
Values
| HEX | #661B4F |
| RGB | rgb(102, 27, 79) |
| HSL | hsl(318, 58%, 25%) |
| OKLCH | oklch(36.3% 0.122 342.5) |
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 #661B4F | 11.44:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #661B4F | 1.83:1 | Fails | Lc 8.4 | Not readable |
| #661B4F text on white | 11.44:1 | AAA | Lc 95.5 | Preferred for body text |
| #661B4F text on black | 1.83:1 | 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
#FCF2F8
oklch(97.1% 0.013 340.5)
-
Step 100
100
#F7E3EF
oklch(93.5% 0.027 340.9)
-
Step 200
200
#F2CCE2
oklch(88.4% 0.051 342.5)
-
Step 300
300
#EBA9D1
oklch(80.9% 0.093 342.4)
-
Step 400
400
#DE79B9
oklch(70.8% 0.146 342.8)
-
Step 500
500
#D251A8
oklch(63.2% 0.188 342.6)
-
Step 600
600
#BD2E93
oklch(55.7% 0.204 342.6)
-
Step 700
700
#A21E7D
oklch(49.1% 0.189 342.5)
-
Step 800
800
#841D66
oklch(42.8% 0.157 342.5)
-
Step 900
900 (this color)
#661B4F
oklch(36.3% 0.122 342.5)
-
Step 950
950
#3F1431
oklch(27.1% 0.078 342.3)
#661B4F 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) | #223250 | 0.134 |
| Deuteranopia (no green cones) | #393E4D | 0.117 |
| Tritanopia (no blue cones) | #6D1C32 | 0.054 |
| Achromatopsia (no color) | #3A3A3A | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661B4F
#661B4F
oklch(36.3% 0.122 342.5)
- #004A31
#004A31
oklch(36.2% 0.079 162.6)
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 #661B4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.027
- Velvet #750851 ΔE 0.035
- Rich Purple #720058 ΔE 0.039
- Merlot #730039 ΔE 0.048
- Red Purple #820747 ΔE 0.061
- Wine #80013F ΔE 0.062
- Plum Purple #4E0550 ΔE 0.070
- Bordeaux #7B002C ΔE 0.072
Use #661B4F 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.