#641B76
Closest named color: Purple (#800080). oklch(38.4% 0.154 318.8), rgb(100, 27, 118).
Aa
White text reads best on this color (10.71:1).
About this color
#641B76 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.154 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.061 away. White text reads best on it, at 10.71:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 1.96:1 |
| White text | 10.71:1 |
Values
| HEX | #641B76 |
| RGB | rgb(100, 27, 118) |
| HSL | hsl(288, 63%, 28%) |
| OKLCH | oklch(38.4% 0.154 318.8) |
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 #641B76 | 10.71:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #641B76 | 1.96:1 | Fails | Lc 10.1 | Not readable |
| #641B76 text on white | 10.71:1 | AAA | Lc 93.9 | Preferred for body text |
| #641B76 text on black | 1.96:1 | Fails | Lc -8.7 | 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
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F4E3F9
oklch(93.6% 0.034 318.5)
-
Step 200
200
#ECCCF5
oklch(88.5% 0.065 318.8)
-
Step 300
300
#E1A8F0
oklch(80.8% 0.116 319.1)
-
Step 400
400
#D075E9
oklch(70.6% 0.186 318.7)
-
Step 500
500
#C348E2
oklch(63.2% 0.237 318.8)
-
Step 600
600
#AE17CF
oklch(55.5% 0.257 318.8)
-
Step 700
700
#9500B3
oklch(49.1% 0.237 318.7)
-
Step 800
800
#790C91
oklch(42.6% 0.198 318.7)
-
Step 900
900 (this color)
#641B76
oklch(38.4% 0.154 318.8)
-
Step 950
950
#3A1144
oklch(27.1% 0.098 319.1)
#641B76 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) | #003979 | 0.149 |
| Deuteranopia (no green cones) | #214074 | 0.133 |
| Tritanopia (no blue cones) | #642E47 | 0.097 |
| Achromatopsia (no color) | #3E3E3E | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641B76
#641B76
oklch(38.4% 0.154 318.8)
- #1A5100
#1A5100
oklch(38.3% 0.12 138.7)
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 #641B76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.061
- Rich Purple #720058 ΔE 0.063
- Grape Purple #5D1451 ΔE 0.065
- Royal Purple #4B006E ΔE 0.069
- Rebecca Purple #663399 ΔE 0.071
- Indigo #4B0082 ΔE 0.071
- Velvet #750851 ΔE 0.075
- Plum Purple #4E0550 ΔE 0.086
Use #641B76 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.