#644166
Closest named color: Brownish Purple (#76424E). oklch(43% 0.074 324.9), rgb(100, 65, 102).
Aa
White text reads best on this color (8.43:1).
About this color
#644166 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.074 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.054 away. White text reads best on it, at 8.43:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #644166 |
| RGB | rgb(100, 65, 102) |
| HSL | hsl(297, 22%, 33%) |
| OKLCH | oklch(43% 0.074 324.9) |
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 #644166 | 8.43:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #644166 | 2.48:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #644166 text on white | 8.43:1 | AAA | Lc 88.9 | Fine for body text |
| #644166 text on black | 2.48:1 | Fails | Lc -13.3 | 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 800.
-
Step 50
50
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7EE
oklch(93.5% 0.012 325.7)
-
Step 200
200
#E2D4E2
oklch(88.5% 0.024 325.8)
-
Step 300
300
#CFB8D0
oklch(80.9% 0.042 324.7)
-
Step 400
400
#B792B9
oklch(70.7% 0.07 324.6)
-
Step 500
500
#A577A7
oklch(63.2% 0.088 325.2)
-
Step 600
600
#8F5F92
oklch(55.5% 0.095 324.7)
-
Step 700
700
#7A4E7D
oklch(49.1% 0.09 324.6)
-
Step 800
800 (this color)
#644166
oklch(43% 0.074 324.9)
-
Step 900
900
#513752
oklch(37.7% 0.056 325.4)
-
Step 950
950
#302030
oklch(27% 0.037 326.5)
#644166 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) | #3E4A67 | 0.066 |
| Deuteranopia (no green cones) | #464F65 | 0.062 |
| Tritanopia (no blue cones) | #66454F | 0.044 |
| Achromatopsia (no color) | #4D4D4D | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644166
#644166
oklch(43% 0.074 324.9)
- #345A36
#345A36
oklch(42.9% 0.073 145.3)
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 #644166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.054
- Purple Brown #673A3F ΔE 0.062
- Dusty Grape #545775 ΔE 0.064
- Dusk #4E5481 ΔE 0.067
- Twilight #4E518B ΔE 0.073
- Dark Mauve #874C62 ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.083
- YInMn Blue #415A77 ΔE 0.084
Use #644166 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.