#641C68
Closest named color: Grape Purple (#5D1451). oklch(37.5% 0.14 325.7), rgb(100, 28, 104).
Aa
White text reads best on this color (11.00:1).
About this color
#641C68 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.140 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.043 away. White text reads best on it, at 11.00:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.90:1 |
| White text | 11.00:1 |
Values
| HEX | #641C68 |
| RGB | rgb(100, 28, 104) |
| HSL | hsl(297, 58%, 26%) |
| OKLCH | oklch(37.5% 0.14 325.7) |
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 #641C68 | 11.00:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #641C68 | 1.90:1 | Fails | Lc 9.3 | Not readable |
| #641C68 text on white | 11.00:1 | AAA | Lc 94.6 | Preferred for body text |
| #641C68 text on black | 1.90:1 | Fails | Lc -8.0 | 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
#FBF2FB
oklch(97.1% 0.015 325.7)
-
Step 100
100
#F5E3F5
oklch(93.5% 0.031 325.8)
-
Step 200
200
#EECCEE
oklch(88.4% 0.059 326.1)
-
Step 300
300
#E4A9E6
oklch(80.9% 0.106 325.4)
-
Step 400
400
#D577D9
oklch(70.7% 0.17 325.7)
-
Step 500
500
#C74DCE
oklch(63.1% 0.215 325.5)
-
Step 600
600
#B326BB
oklch(55.7% 0.234 325.7)
-
Step 700
700
#9913A1
oklch(49.1% 0.218 325.5)
-
Step 800
800
#7D1782
oklch(42.8% 0.18 326)
-
Step 900
900 (this color)
#641C68
oklch(37.5% 0.14 325.7)
-
Step 950
950
#3B133D
oklch(27% 0.088 325.8)
#641C68 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) | #0B366A | 0.147 |
| Deuteranopia (no green cones) | #2C3F66 | 0.124 |
| Tritanopia (no blue cones) | #672840 | 0.080 |
| Achromatopsia (no color) | #3C3C3C | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641C68
#641C68
oklch(37.5% 0.14 325.7)
- #005013
#005013
oklch(37.5% 0.116 145.6)
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 #641C68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.043
- Rich Purple #720058 ΔE 0.046
- Velvet #750851 ΔE 0.055
- Purple #800080 ΔE 0.071
- Plum Purple #4E0550 ΔE 0.073
- Royal Purple #4B006E ΔE 0.073
- Indigo #4B0082 ΔE 0.085
- Red Purple #820747 ΔE 0.087
Use #641C68 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.