#641663
Closest named color: Grape Purple (#5D1451). oklch(36.6% 0.143 328.6), rgb(100, 22, 99).
Aa
White text reads best on this color (11.43:1).
About this color
#641663 is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.143 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.034 away. White text reads best on it, at 11.43:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.83:1 |
| White text | 11.43:1 |
Values
| HEX | #641663 |
| RGB | rgb(100, 22, 99) |
| HSL | hsl(301, 64%, 24%) |
| OKLCH | oklch(36.6% 0.143 328.6) |
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 #641663 | 11.43:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #641663 | 1.83:1 | Fails | Lc 8.6 | Not readable |
| #641663 text on white | 11.43:1 | AAA | Lc 95.3 | Preferred for body text |
| #641663 text on black | 1.83:1 | 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
#FBF2FA
oklch(97% 0.014 329.1)
-
Step 100
100
#F6E3F4
oklch(93.6% 0.03 329.1)
-
Step 200
200
#F0CCED
oklch(88.6% 0.059 328.7)
-
Step 300
300
#E7A8E3
oklch(80.9% 0.106 328.6)
-
Step 400
400
#D975D5
oklch(70.7% 0.172 328.7)
-
Step 500
500
#CC49CA
oklch(63.1% 0.22 328.4)
-
Step 600
600
#B71DB6
oklch(55.5% 0.239 328.5)
-
Step 700
700
#9E069D
oklch(49.2% 0.223 328.7)
-
Step 800
800
#80117F
oklch(42.7% 0.183 328.6)
-
Step 900
900 (this color)
#641663
oklch(36.6% 0.143 328.6)
-
Step 950
950
#3D113C
oklch(27% 0.092 328.7)
#641663 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) | #083365 | 0.154 |
| Deuteranopia (no green cones) | #2C3D61 | 0.129 |
| Tritanopia (no blue cones) | #68223B | 0.080 |
| Achromatopsia (no color) | #3A3A3A | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641663
#641663
oklch(36.6% 0.143 328.6)
- #004D1C
#004D1C
oklch(36.7% 0.104 148.6)
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 #641663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.034
- Rich Purple #720058 ΔE 0.038
- Velvet #750851 ΔE 0.049
- Plum Purple #4E0550 ΔE 0.064
- Royal Purple #4B006E ΔE 0.071
- Purple #800080 ΔE 0.074
- Merlot #730039 ΔE 0.080
- Deep Violet #490648 ΔE 0.080
Use #641663 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.