#641971
Closest named color: Rich Purple (#720058). oklch(37.8% 0.152 321.2), rgb(100, 25, 113).
Aa
White text reads best on this color (10.94:1).
About this color
#641971 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.152 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.055 away. White text reads best on it, at 10.94:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #641971 |
| RGB | rgb(100, 25, 113) |
| HSL | hsl(291, 64%, 27%) |
| OKLCH | oklch(37.8% 0.152 321.2) |
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 #641971 | 10.94:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #641971 | 1.91:1 | Fails | Lc 9.6 | Not readable |
| #641971 text on white | 10.94:1 | AAA | Lc 94.3 | Preferred for body text |
| #641971 text on black | 1.91:1 | Fails | Lc -8.3 | 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
#F5E3F8
oklch(93.6% 0.034 321.4)
-
Step 200
200
#EDCCF3
oklch(88.5% 0.063 321.1)
-
Step 300
300
#E3A8ED
oklch(80.9% 0.114 321.5)
-
Step 400
400
#D375E4
oklch(70.7% 0.182 321.3)
-
Step 500
500
#C648DC
oklch(63.2% 0.233 321.4)
-
Step 600
600
#B117C9
oklch(55.6% 0.253 321.3)
-
Step 700
700
#9800AE
oklch(49.2% 0.235 321.2)
-
Step 800
800
#7B0C8D
oklch(42.6% 0.195 321.1)
-
Step 900
900 (this color)
#641971
oklch(37.8% 0.152 321.2)
-
Step 950
950
#3B1142
oklch(27.1% 0.097 321.7)
#641971 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) | #003773 | 0.152 |
| Deuteranopia (no green cones) | #243F6F | 0.133 |
| Tritanopia (no blue cones) | #652A44 | 0.091 |
| Achromatopsia (no color) | #3D3D3D | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #641971
#641971
oklch(37.8% 0.152 321.2)
- #0B5100
#0B5100
oklch(37.9% 0.125 141.3)
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 #641971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.055
- Grape Purple #5D1451 ΔE 0.056
- Purple #800080 ΔE 0.063
- Royal Purple #4B006E ΔE 0.068
- Velvet #750851 ΔE 0.068
- Indigo #4B0082 ΔE 0.074
- Plum Purple #4E0550 ΔE 0.079
- Rebecca Purple #663399 ΔE 0.079
Use #641971 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.