#642171
Closest named color: Grape Purple (#5D1451). oklch(38.6% 0.142 320.7), rgb(100, 33, 113).
Aa
White text reads best on this color (10.51:1).
About this color
#642171 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.142 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.059 away. White text reads best on it, at 10.51:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #642171 |
| RGB | rgb(100, 33, 113) |
| HSL | hsl(290, 55%, 29%) |
| OKLCH | oklch(38.6% 0.142 320.7) |
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 #642171 | 10.51:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #642171 | 1.99:1 | Fails | Lc 10.3 | Not readable |
| #642171 text on white | 10.51:1 | AAA | Lc 93.6 | Preferred for body text |
| #642171 text on black | 1.99:1 | Fails | Lc -8.9 | 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F4E4F7
oklch(93.7% 0.03 320.9)
-
Step 200
200
#ECCDF2
oklch(88.6% 0.06 320.8)
-
Step 300
300
#E0AAEB
oklch(80.9% 0.107 320.6)
-
Step 400
400
#CF79E1
oklch(70.7% 0.171 320.5)
-
Step 500
500
#C14FD8
oklch(63% 0.219 320.5)
-
Step 600
600
#AD29C5
oklch(55.7% 0.237 320.8)
-
Step 700
700
#9417AA
oklch(49.1% 0.22 320.7)
-
Step 800
800
#78198A
oklch(42.7% 0.182 320.5)
-
Step 900
900 (this color)
#642171
oklch(38.6% 0.142 320.7)
-
Step 950
950
#391341
oklch(26.9% 0.091 320.3)
#642171 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) | #053A73 | 0.144 |
| Deuteranopia (no green cones) | #29426F | 0.123 |
| Tritanopia (no blue cones) | #652F46 | 0.087 |
| Achromatopsia (no color) | #3F3F3F | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642171
#642171
oklch(38.6% 0.142 320.7)
- #105300
#105300
oklch(38.6% 0.126 140.7)
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 #642171, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.059
- Rich Purple #720058 ΔE 0.059
- Purple #800080 ΔE 0.066
- Velvet #750851 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.073
- Royal Purple #4B006E ΔE 0.076
- Indigo #4B0082 ΔE 0.080
- Plum Purple #4E0550 ΔE 0.086
Use #642171 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.