#641B5D
Closest named color: Grape Purple (#5D1451). oklch(36.7% 0.132 332), rgb(100, 27, 93).
Aa
White text reads best on this color (11.31:1).
About this color
#641B5D is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.132 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.027 away. White text reads best on it, at 11.31:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.85:1 |
| White text | 11.31:1 |
Values
| HEX | #641B5D |
| RGB | rgb(100, 27, 93) |
| HSL | hsl(306, 57%, 25%) |
| OKLCH | oklch(36.7% 0.132 332) |
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 #641B5D | 11.31:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #641B5D | 1.85:1 | Fails | Lc 8.7 | Not readable |
| #641B5D text on white | 11.31:1 | AAA | Lc 95.2 | Preferred for body text |
| #641B5D text on black | 1.85:1 | 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
#FBF2F9
oklch(97% 0.013 333)
-
Step 100
100
#F6E3F2
oklch(93.5% 0.029 332.8)
-
Step 200
200
#F0CCE9
oklch(88.4% 0.055 332.7)
-
Step 300
300
#E7A9DD
oklch(80.9% 0.099 332.2)
-
Step 400
400
#D878CC
oklch(70.7% 0.158 331.9)
-
Step 500
500
#CC4FBE
oklch(63.1% 0.202 332.3)
-
Step 600
600
#B72AAB
oklch(55.7% 0.221 332)
-
Step 700
700
#9D1992
oklch(49.1% 0.205 332.2)
-
Step 800
800
#801A77
oklch(42.8% 0.17 332.1)
-
Step 900
900 (this color)
#641B5D
oklch(36.7% 0.132 332)
-
Step 950
950
#3D1338
oklch(27% 0.084 332.6)
#641B5D 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) | #17345F | 0.141 |
| Deuteranopia (no green cones) | #313E5B | 0.121 |
| Tritanopia (no blue cones) | #682239 | 0.069 |
| Achromatopsia (no color) | #3A3A3A | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641B5D
#641B5D
oklch(36.7% 0.132 332)
- #004D24
#004D24
oklch(36.8% 0.096 152.2)
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 #641B5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.027
- Rich Purple #720058 ΔE 0.037
- Velvet #750851 ΔE 0.043
- Plum Purple #4E0550 ΔE 0.066
- Merlot #730039 ΔE 0.070
- Red Purple #820747 ΔE 0.075
- Deep Violet #490648 ΔE 0.079
- Wine #80013F ΔE 0.079
Use #641B5D 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.