#644E67
Closest named color: Dusty Grape (#545775). oklch(45.6% 0.048 322.3), rgb(100, 78, 103).
Aa
White text reads best on this color (7.42:1).
About this color
#644E67 is a medium-dark, muted purple. In OKLCH its lightness is 46%, its chroma 0.048 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.037 away. White text reads best on it, at 7.42:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.048) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #644E67 |
| RGB | rgb(100, 78, 103) |
| HSL | hsl(293, 14%, 35%) |
| OKLCH | oklch(45.6% 0.048 322.3) |
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 #644E67 | 7.42:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #644E67 | 2.82:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #644E67 text on white | 7.42:1 | AAA | Lc 85.8 | Fine for body text |
| #644E67 text on black | 2.82:1 | Fails | Lc -16.3 | 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
#F7F5F7
oklch(97.2% 0.003 325.6)
-
Step 100
100
#ECE8ED
oklch(93.6% 0.008 319.4)
-
Step 200
200
#DED6DF
oklch(88.5% 0.015 322.3)
-
Step 300
300
#CABBCC
oklch(81% 0.029 322.2)
-
Step 400
400
#AF98B2
oklch(70.8% 0.045 322.4)
-
Step 500
500
#9B7E9E
oklch(63.1% 0.058 323.2)
-
Step 600
600
#856789
oklch(55.6% 0.063 322.4)
-
Step 700
700
#715674
oklch(49.2% 0.057 323.1)
-
Step 800
800 (this color)
#644E67
oklch(45.6% 0.048 322.3)
-
Step 900
900
#4B3B4E
oklch(37.7% 0.038 321)
-
Step 950
950
#2C232D
oklch(27.1% 0.022 322.9)
#644E67 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) | #4C5468 | 0.041 |
| Deuteranopia (no green cones) | #515666 | 0.038 |
| Tritanopia (no blue cones) | #655057 | 0.029 |
| Achromatopsia (no color) | #555555 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644E67
#644E67
oklch(45.6% 0.048 322.3)
- #475E45
#475E45
oklch(45.6% 0.049 142.7)
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 #644E67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.037
- Brownish Purple #76424E ΔE 0.052
- Dusk #4E5481 ΔE 0.052
- YInMn Blue #415A77 ΔE 0.060
- Dark Mauve #874C62 ΔE 0.064
- Twilight #4E518B ΔE 0.067
- Slate #516572 ΔE 0.068
- Purple Brown #673A3F ΔE 0.071
Use #644E67 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.