#644660
Closest named color: Brownish Purple (#76424E). oklch(43.7% 0.057 331.2), rgb(100, 70, 96).
Aa
White text reads best on this color (8.11:1).
About this color
#644660 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.057 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.043 away. White text reads best on it, at 8.11:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.057) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #644660 |
| RGB | rgb(100, 70, 96) |
| HSL | hsl(308, 18%, 33%) |
| OKLCH | oklch(43.7% 0.057 331.2) |
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 #644660 | 8.11:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #644660 | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #644660 text on white | 8.11:1 | AAA | Lc 88.0 | Fine for body text |
| #644660 text on black | 2.58:1 | Fails | Lc -14.1 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EEE8ED
oklch(93.7% 0.009 331)
-
Step 200
200
#E1D5DF
oklch(88.6% 0.019 331.1)
-
Step 300
300
#CEB9CB
oklch(80.9% 0.034 330.5)
-
Step 400
400
#B595B0
oklch(70.7% 0.053 331.4)
-
Step 500
500
#A27B9C
oklch(63.2% 0.067 331.7)
-
Step 600
600
#8D6387
oklch(55.6% 0.074 331.6)
-
Step 700
700
#775273
oklch(49% 0.069 330.3)
-
Step 800
800 (this color)
#644660
oklch(43.7% 0.057 331.2)
-
Step 900
900
#4F394C
oklch(37.6% 0.043 331.1)
-
Step 950
950
#2F212D
oklch(27% 0.03 331.3)
#644660 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) | #454D61 | 0.054 |
| Deuteranopia (no green cones) | #4C515F | 0.050 |
| Tritanopia (no blue cones) | #67484F | 0.031 |
| Achromatopsia (no color) | #505050 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644660
#644660
oklch(43.7% 0.057 331.2)
- #395B42
#395B42
oklch(43.7% 0.057 151.8)
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 #644660, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.043
- Purple Brown #673A3F ΔE 0.054
- Dusty Grape #545775 ΔE 0.055
- Dusk #4E5481 ΔE 0.065
- Dark Mauve #874C62 ΔE 0.070
- YInMn Blue #415A77 ΔE 0.075
- Twilight #4E518B ΔE 0.077
- Dull Purple #84597E ΔE 0.089
Use #644660 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.