#644A5D
Closest named color: Brownish Purple (#76424E). oklch(44.4% 0.045 336.3), rgb(100, 74, 93).
Aa
White text reads best on this color (7.83:1).
About this color
#644A5D is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.045 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.040 away. White text reads best on it, at 7.83:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.67:1 |
| White text | 7.83:1 |
Values
| HEX | #644A5D |
| RGB | rgb(100, 74, 93) |
| HSL | hsl(316, 15%, 34%) |
| OKLCH | oklch(44.4% 0.045 336.3) |
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 #644A5D | 7.83:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #644A5D | 2.67:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #644A5D text on white | 7.83:1 | AAA | Lc 87.2 | Fine for body text |
| #644A5D text on black | 2.67:1 | Fails | Lc -14.9 | 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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#E0D6DD
oklch(88.6% 0.014 336.2)
-
Step 300
300
#CCBAC7
oklch(80.8% 0.027 335.6)
-
Step 400
400
#B297AB
oklch(70.7% 0.042 335.2)
-
Step 500
500
#9F7D96
oklch(63% 0.055 335.9)
-
Step 600
600
#8A6680
oklch(55.5% 0.059 336.8)
-
Step 700
700
#75556C
oklch(49.1% 0.054 337)
-
Step 800
800 (this color)
#644A5D
oklch(44.4% 0.045 336.3)
-
Step 900
900
#4E3B49
oklch(37.8% 0.035 335.9)
-
Step 950
950
#2E222B
oklch(27% 0.024 335.3)
#644A5D 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) | #4A505E | 0.045 |
| Deuteranopia (no green cones) | #50535C | 0.041 |
| Tritanopia (no blue cones) | #674B50 | 0.023 |
| Achromatopsia (no color) | #525252 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644A5D
#644A5D
oklch(44.4% 0.045 336.3)
- #3F5B49
#3F5B49
oklch(44.3% 0.045 155.9)
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 #644A5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.040
- Dusty Grape #545775 ΔE 0.050
- Purple Brown #673A3F ΔE 0.055
- Dusk #4E5481 ΔE 0.066
- Dark Mauve #874C62 ΔE 0.067
- YInMn Blue #415A77 ΔE 0.070
- Slate #516572 ΔE 0.079
- Twilight #4E518B ΔE 0.080
Use #644A5D 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.