#644A6A
Closest named color: Dusty Grape (#545775). oklch(44.9% 0.06 319.9), rgb(100, 74, 106).
Aa
White text reads best on this color (7.69:1).
About this color
#644A6A is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.060 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.043 away. White text reads best on it, at 7.69:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.060) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.72:1 |
| White text | 7.69:1 |
Values
| HEX | #644A6A |
| RGB | rgb(100, 74, 106) |
| HSL | hsl(289, 18%, 35%) |
| OKLCH | oklch(44.9% 0.06 319.9) |
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 #644A6A | 7.69:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #644A6A | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #644A6A text on white | 7.69:1 | AAA | Lc 86.7 | Fine for body text |
| #644A6A text on black | 2.72:1 | Fails | Lc -15.4 | 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
#EDE8EE
oklch(93.7% 0.01 320.5)
-
Step 200
200
#DFD5E1
oklch(88.5% 0.019 320.6)
-
Step 300
300
#CBBACF
oklch(81% 0.035 319.8)
-
Step 400
400
#B196B7
oklch(70.8% 0.056 320.1)
-
Step 500
500
#9D7BA5
oklch(63% 0.073 319.8)
-
Step 600
600
#886490
oklch(55.6% 0.079 320.2)
-
Step 700
700
#73537B
oklch(49.1% 0.073 319.5)
-
Step 800
800 (this color)
#644A6A
oklch(44.9% 0.06 319.9)
-
Step 900
900
#4D3951
oklch(37.6% 0.048 320.7)
-
Step 950
950
#2D2230
oklch(27.1% 0.03 318.9)
#644A6A 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) | #46516B | 0.051 |
| Deuteranopia (no green cones) | #4C5469 | 0.047 |
| Tritanopia (no blue cones) | #654D55 | 0.039 |
| Achromatopsia (no color) | #535353 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644A6A
#644A6A
oklch(44.9% 0.06 319.9)
- #435D3D
#435D3D
oklch(44.8% 0.06 139.8)
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 #644A6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.043
- Dusk #4E5481 ΔE 0.052
- Brownish Purple #76424E ΔE 0.053
- Twilight #4E518B ΔE 0.062
- YInMn Blue #415A77 ΔE 0.066
- Dark Mauve #874C62 ΔE 0.067
- Purple Brown #673A3F ΔE 0.071
- Dull Purple #84597E ΔE 0.077
Use #644A6A 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.