#644257
Closest named color: Brownish Purple (#76424E). oklch(42.5% 0.056 342.1), rgb(100, 66, 87).
Aa
White text reads best on this color (8.54:1).
About this color
#644257 is a dark, muted purple. In OKLCH its lightness is 43%, its chroma 0.056 and its hue 342°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.037 away. White text reads best on it, at 8.54:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.45:1 |
| White text | 8.54:1 |
Values
| HEX | #644257 |
| RGB | rgb(100, 66, 87) |
| HSL | hsl(323, 20%, 33%) |
| OKLCH | oklch(42.5% 0.056 342.1) |
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 #644257 | 8.54:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #644257 | 2.45:1 | Fails | Lc 14.7 | Not readable |
| #644257 text on white | 8.54:1 | AAA | Lc 89.3 | Fine for body text |
| #644257 text on black | 2.45:1 | Fails | Lc -12.9 | 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 800.
-
Step 50
50
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E2D5DC
oklch(88.5% 0.017 343.7)
-
Step 300
300
#D1B9C6
oklch(81% 0.032 344)
-
Step 400
400
#B994AA
oklch(70.7% 0.053 342.1)
-
Step 500
500
#A67995
oklch(63% 0.068 341.4)
-
Step 600
600
#91627F
oklch(55.5% 0.073 342.2)
-
Step 700
700
#7C516B
oklch(49.1% 0.068 342.9)
-
Step 800
800 (this color)
#644257
oklch(42.5% 0.056 342.1)
-
Step 900
900
#523848
oklch(37.6% 0.044 342)
-
Step 950
950
#30212A
oklch(27% 0.028 342.4)
#644257 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) | #444958 | 0.057 |
| Deuteranopia (no green cones) | #4C4E56 | 0.053 |
| Tritanopia (no blue cones) | #684249 | 0.024 |
| Achromatopsia (no color) | #4C4C4C | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644257
#644257
oklch(42.5% 0.056 342.1)
- #305845
#305845
oklch(42.5% 0.056 162.1)
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 #644257, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.037
- Purple Brown #673A3F ΔE 0.038
- Dusty Grape #545775 ΔE 0.068
- Dark Mauve #874C62 ΔE 0.076
- Dusk #4E5481 ΔE 0.080
- Charcoal Grey #3C4142 ΔE 0.082
- YInMn Blue #415A77 ΔE 0.087
- Twilight #4E518B ΔE 0.091
Use #644257 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.