#644E6D
Closest named color: Dusty Grape (#545775). oklch(45.9% 0.056 316), rgb(100, 78, 109).
Aa
White text reads best on this color (7.36:1).
About this color
#644E6D is a medium-dark, muted purple. In OKLCH its lightness is 46%, its chroma 0.056 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.034 away. White text reads best on it, at 7.36:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #644E6D |
| RGB | rgb(100, 78, 109) |
| HSL | hsl(283, 17%, 37%) |
| OKLCH | oklch(45.9% 0.056 316) |
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 #644E6D | 7.36:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #644E6D | 2.85:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #644E6D text on white | 7.36:1 | AAA | Lc 85.5 | Fine for body text |
| #644E6D text on black | 2.85:1 | Fails | Lc -16.5 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#ECE8EE
oklch(93.6% 0.009 314.8)
-
Step 200
200
#DED6E1
oklch(88.6% 0.017 316.9)
-
Step 300
300
#C9BBCF
oklch(81% 0.032 315.9)
-
Step 400
400
#AE97B7
oklch(70.7% 0.053 316.5)
-
Step 500
500
#9A7DA5
oklch(63.1% 0.067 316.6)
-
Step 600
600
#846690
oklch(55.6% 0.073 316.1)
-
Step 700
700
#70557B
oklch(49.2% 0.068 315.9)
-
Step 800
800 (this color)
#644E6D
oklch(45.9% 0.056 316)
-
Step 900
900
#4B3A51
oklch(37.6% 0.044 317.1)
-
Step 950
950
#2C2230
oklch(27% 0.029 316.2)
#644E6D 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) | #4A546E | 0.043 |
| Deuteranopia (no green cones) | #4F566C | 0.040 |
| Tritanopia (no blue cones) | #645259 | 0.039 |
| Achromatopsia (no color) | #565656 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644E6D
#644E6D
oklch(45.9% 0.056 316)
- #495F3F
#495F3F
oklch(45.8% 0.057 136.2)
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 #644E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.034
- Dusk #4E5481 ΔE 0.046
- Brownish Purple #76424E ΔE 0.058
- Twilight #4E518B ΔE 0.059
- YInMn Blue #415A77 ΔE 0.059
- Dark Mauve #874C62 ΔE 0.065
- Slate #516572 ΔE 0.070
- Dull Purple #84597E ΔE 0.070
Use #644E6D 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.