#641B59
Closest named color: Grape Purple (#5D1451). oklch(36.5% 0.129 334.6), rgb(100, 27, 89).
Aa
White text reads best on this color (11.39:1).
About this color
#641B59 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.129 and its hue 335°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.024 away. White text reads best on it, at 11.39:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.84:1 |
| White text | 11.39:1 |
Values
| HEX | #641B59 |
| RGB | rgb(100, 27, 89) |
| HSL | hsl(309, 57%, 25%) |
| OKLCH | oklch(36.5% 0.129 334.6) |
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 #641B59 | 11.39:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #641B59 | 1.84:1 | Fails | Lc 8.5 | Not readable |
| #641B59 text on white | 11.39:1 | AAA | Lc 95.4 | Preferred for body text |
| #641B59 text on black | 1.84:1 | 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
#FBF2F9
oklch(97% 0.013 333)
-
Step 100
100
#F6E3F1
oklch(93.5% 0.028 334.9)
-
Step 200
200
#F0CCE8
oklch(88.4% 0.055 333.8)
-
Step 300
300
#E8A9DA
oklch(80.9% 0.097 334.6)
-
Step 400
400
#DA78C7
oklch(70.7% 0.155 334.7)
-
Step 500
500
#CD50B9
oklch(63.1% 0.198 334.4)
-
Step 600
600
#B82CA4
oklch(55.6% 0.214 334.7)
-
Step 700
700
#9E1C8D
oklch(49.1% 0.199 334.5)
-
Step 800
800
#801B72
oklch(42.6% 0.165 334.5)
-
Step 900
900 (this color)
#641B59
oklch(36.5% 0.129 334.6)
-
Step 950
950
#3D1436
oklch(27.1% 0.081 334.7)
#641B59 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) | #1A335B | 0.139 |
| Deuteranopia (no green cones) | #333E57 | 0.120 |
| Tritanopia (no blue cones) | #692137 | 0.066 |
| Achromatopsia (no color) | #3A3A3A | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641B59
#641B59
oklch(36.5% 0.129 334.6)
- #004C28
#004C28
oklch(36.6% 0.091 154.8)
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 #641B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.024
- Rich Purple #720058 ΔE 0.037
- Velvet #750851 ΔE 0.040
- Merlot #730039 ΔE 0.064
- Plum Purple #4E0550 ΔE 0.065
- Red Purple #820747 ΔE 0.072
- Wine #80013F ΔE 0.075
- Deep Violet #490648 ΔE 0.078
Use #641B59 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.