#643454
Closest named color: Purple Brown (#673A3F). oklch(39.8% 0.082 341.1), rgb(100, 52, 84).
Aa
White text reads best on this color (9.71:1).
About this color
#643454 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.082 and its hue 341°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.044 away. White text reads best on it, at 9.71:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.16:1 |
| White text | 9.71:1 |
Values
| HEX | #643454 |
| RGB | rgb(100, 52, 84) |
| HSL | hsl(320, 32%, 30%) |
| OKLCH | oklch(39.8% 0.082 341.1) |
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 #643454 | 9.71:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #643454 | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #643454 text on white | 9.71:1 | AAA | Lc 92.3 | Preferred for body text |
| #643454 text on black | 2.16:1 | Fails | Lc -10.2 | 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
#FAF3F7
oklch(97.1% 0.009 341.8)
-
Step 100
100
#F3E5ED
oklch(93.5% 0.018 342)
-
Step 200
200
#EAD1E0
oklch(88.6% 0.034 341.1)
-
Step 300
300
#DDB2CC
oklch(81% 0.06 341.6)
-
Step 400
400
#CB88B3
oklch(70.8% 0.099 341.1)
-
Step 500
500
#BB69A0
oklch(63.1% 0.125 340.8)
-
Step 600
600
#A74F8B
oklch(55.7% 0.137 341.1)
-
Step 700
700
#8F3F76
oklch(49.1% 0.128 341.1)
-
Step 800
800
#743560
oklch(42.8% 0.105 341)
-
Step 900
900 (this color)
#643454
oklch(39.8% 0.082 341.1)
-
Step 950
950
#371C2E
oklch(27.1% 0.051 340.8)
#643454 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) | #363F55 | 0.085 |
| Deuteranopia (no green cones) | #434753 | 0.077 |
| Tritanopia (no blue cones) | #693540 | 0.037 |
| Achromatopsia (no color) | #444444 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #643454
#643454
oklch(39.8% 0.082 341.1)
- #0E5438
#0E5438
oklch(39.7% 0.082 160.9)
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 #643454, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.044
- Brownish Purple #76424E ΔE 0.059
- Grape Purple #5D1451 ΔE 0.073
- Velvet #750851 ΔE 0.075
- Red Purple #820747 ΔE 0.082
- Rich Purple #720058 ΔE 0.083
- Merlot #730039 ΔE 0.083
- Wine #80013F ΔE 0.085
Use #643454 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.