#661661
Closest named color: Grape Purple (#5D1451). oklch(36.8% 0.143 330.8), rgb(102, 22, 97).
Aa
White text reads best on this color (11.33:1).
About this color
#661661 is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.143 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.033 away. White text reads best on it, at 11.33:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.85:1 |
| White text | 11.33:1 |
Values
| HEX | #661661 |
| RGB | rgb(102, 22, 97) |
| HSL | hsl(304, 65%, 24%) |
| OKLCH | oklch(36.8% 0.143 330.8) |
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 #661661 | 11.33:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #661661 | 1.85:1 | Fails | Lc 8.8 | Not readable |
| #661661 text on white | 11.33:1 | AAA | Lc 95.1 | Preferred for body text |
| #661661 text on black | 1.85:1 | Fails | Lc -7.6 | 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
#FBF2FA
oklch(97% 0.014 329.1)
-
Step 100
100
#F7E3F4
oklch(93.7% 0.031 330.7)
-
Step 200
200
#F1CBEC
oklch(88.4% 0.061 330.4)
-
Step 300
300
#E9A7E1
oklch(80.9% 0.108 330.8)
-
Step 400
400
#DB74D1
oklch(70.7% 0.171 330.9)
-
Step 500
500
#CF48C5
oklch(63.2% 0.219 330.9)
-
Step 600
600
#BA1BB1
oklch(55.6% 0.238 331)
-
Step 700
700
#A00399
oklch(49.2% 0.222 330.7)
-
Step 800
800
#820F7C
oklch(42.8% 0.183 330.8)
-
Step 900
900 (this color)
#661661
oklch(36.8% 0.143 330.8)
-
Step 950
950
#3E113A
oklch(27% 0.09 331.5)
#661661 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) | #0D3363 | 0.155 |
| Deuteranopia (no green cones) | #2F3E5F | 0.130 |
| Tritanopia (no blue cones) | #6A203A | 0.076 |
| Achromatopsia (no color) | #3A3A3A | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661661
#661661
oklch(36.8% 0.143 330.8)
- #004D21
#004D21
oklch(36.8% 0.1 150.7)
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 #661661, closest first.
No curated palette has a color within ΔE 0.04 of #661661.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.033
- Rich Purple #720058 ΔE 0.033
- Velvet #750851 ΔE 0.044
- Plum Purple #4E0550 ΔE 0.067
- Purple #800080 ΔE 0.074
- Merlot #730039 ΔE 0.075
- Royal Purple #4B006E ΔE 0.077
- Red Purple #820747 ΔE 0.077
Use #661661 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.