#644F60
Closest named color: Dusty Grape (#545775). oklch(45.5% 0.038 332.8), rgb(100, 79, 96).
Aa
White text reads best on this color (7.42:1).
About this color
#644F60 is a medium-dark, muted purple. In OKLCH its lightness is 46%, its chroma 0.038 and its hue 333°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.041 away. White text reads best on it, at 7.42:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #644F60 |
| RGB | rgb(100, 79, 96) |
| HSL | hsl(311, 12%, 35%) |
| OKLCH | oklch(45.5% 0.038 332.8) |
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 #644F60 | 7.42:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #644F60 | 2.82:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #644F60 text on white | 7.42:1 | AAA | Lc 85.8 | Fine for body text |
| #644F60 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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#DED6DD
oklch(88.4% 0.013 329.6)
-
Step 300
300
#CABCC7
oklch(81% 0.022 332.9)
-
Step 400
400
#AF99AA
oklch(70.8% 0.035 333.8)
-
Step 500
500
#9B8096
oklch(63.2% 0.045 332.5)
-
Step 600
600
#856980
oklch(55.6% 0.049 332.4)
-
Step 700
700
#71576C
oklch(49.1% 0.046 333)
-
Step 800
800 (this color)
#644F60
oklch(45.5% 0.038 332.8)
-
Step 900
900
#4B3C48
oklch(37.7% 0.028 333.1)
-
Step 950
950
#2C232A
oklch(26.9% 0.018 333.9)
#644F60 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) | #4F5461 | 0.036 |
| Deuteranopia (no green cones) | #53565F | 0.034 |
| Tritanopia (no blue cones) | #665055 | 0.019 |
| Achromatopsia (no color) | #555555 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644F60
#644F60
oklch(45.5% 0.038 332.8)
- #475D4D
#475D4D
oklch(45.5% 0.037 153.2)
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 #644F60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.041
- Brownish Purple #76424E ΔE 0.047
- Dusk #4E5481 ΔE 0.061
- YInMn Blue #415A77 ΔE 0.063
- Dark Mauve #874C62 ΔE 0.064
- Purple Brown #673A3F ΔE 0.066
- Slate #516572 ΔE 0.066
- Dim Gray #696969 ΔE 0.076
Use #644F60 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.