#644B59
Closest named color: Brownish Purple (#76424E). oklch(44.4% 0.04 344.2), rgb(100, 75, 89).
Aa
White text reads best on this color (7.79:1).
About this color
#644B59 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.040 and its hue 344°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.039 away. White text reads best on it, at 7.79:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #644B59 |
| RGB | rgb(100, 75, 89) |
| HSL | hsl(326, 14%, 34%) |
| OKLCH | oklch(44.4% 0.04 344.2) |
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 #644B59 | 7.79:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #644B59 | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #644B59 text on white | 7.79:1 | AAA | Lc 87.0 | Fine for body text |
| #644B59 text on black | 2.69:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EB
oklch(93.6% 0.007 340.4)
-
Step 200
200
#E0D6DB
oklch(88.6% 0.013 345.5)
-
Step 300
300
#CCBBC4
oklch(80.9% 0.023 344.3)
-
Step 400
400
#B298A6
oklch(70.7% 0.036 344.4)
-
Step 500
500
#9F7E90
oklch(63% 0.048 344.6)
-
Step 600
600
#8A677B
oklch(55.6% 0.053 343.7)
-
Step 700
700
#755667
oklch(49.1% 0.048 345)
-
Step 800
800 (this color)
#644B59
oklch(44.4% 0.04 344.2)
-
Step 900
900
#4E3B46
oklch(37.7% 0.032 343.1)
-
Step 950
950
#2E2329
oklch(27.1% 0.02 344.5)
#644B59 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) | #4C505A | 0.041 |
| Deuteranopia (no green cones) | #525458 | 0.039 |
| Tritanopia (no blue cones) | #674B50 | 0.015 |
| Achromatopsia (no color) | #525252 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644B59
#644B59
oklch(44.4% 0.04 344.2)
- #3F5B4E
#3F5B4E
oklch(44.5% 0.04 164.3)
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 #644B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.039
- Purple Brown #673A3F ΔE 0.052
- Dusty Grape #545775 ΔE 0.053
- Dark Mauve #874C62 ΔE 0.067
- Dusk #4E5481 ΔE 0.070
- YInMn Blue #415A77 ΔE 0.072
- Slate #516572 ΔE 0.077
- Dark Slate Gray #2F4F4F ΔE 0.085
Use #644B59 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.