#641F66
Closest named color: Grape Purple (#5D1451). oklch(37.7% 0.134 326.7), rgb(100, 31, 102).
Aa
White text reads best on this color (10.88:1).
About this color
#641F66 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.134 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.042 away. White text reads best on it, at 10.88:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.92:1 |
| White text | 10.88:1 |
Values
| HEX | #641F66 |
| RGB | rgb(100, 31, 102) |
| HSL | hsl(298, 53%, 26%) |
| OKLCH | oklch(37.7% 0.134 326.7) |
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 #641F66 | 10.88:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #641F66 | 1.92:1 | Fails | Lc 9.5 | Not readable |
| #641F66 text on white | 10.88:1 | AAA | Lc 94.4 | Preferred for body text |
| #641F66 text on black | 1.92:1 | Fails | Lc -8.2 | 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
#F5E3F4
oklch(93.5% 0.03 327.5)
-
Step 200
200
#EECDED
oklch(88.6% 0.056 327)
-
Step 300
300
#E3AAE3
oklch(80.9% 0.1 326.5)
-
Step 400
400
#D479D5
oklch(70.7% 0.162 326.7)
-
Step 500
500
#C651C9
oklch(63.1% 0.205 326.7)
-
Step 600
600
#B12CB6
oklch(55.5% 0.224 326.5)
-
Step 700
700
#981C9D
oklch(49.1% 0.208 326.4)
-
Step 800
800
#7C1B7F
oklch(42.7% 0.173 326.8)
-
Step 900
900 (this color)
#641F66
oklch(37.7% 0.134 326.7)
-
Step 950
950
#3B143C
oklch(27.1% 0.085 326.6)
#641F66 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) | #133768 | 0.140 |
| Deuteranopia (no green cones) | #2F4064 | 0.119 |
| Tritanopia (no blue cones) | #67293F | 0.077 |
| Achromatopsia (no color) | #3D3D3D | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641F66
#641F66
oklch(37.7% 0.134 326.7)
- #005018
#005018
oklch(37.6% 0.112 146.9)
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 #641F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.042
- Rich Purple #720058 ΔE 0.046
- Velvet #750851 ΔE 0.054
- Purple #800080 ΔE 0.074
- Plum Purple #4E0550 ΔE 0.074
- Royal Purple #4B006E ΔE 0.077
- Red Purple #820747 ΔE 0.084
- Merlot #730039 ΔE 0.084
Use #641F66 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.