#644A60
Closest named color: Brownish Purple (#76424E). oklch(44.5% 0.049 331.7), rgb(100, 74, 96).
Aa
White text reads best on this color (7.80:1).
About this color
#644A60 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.049 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.043 away. White text reads best on it, at 7.80:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #644A60 |
| RGB | rgb(100, 74, 96) |
| HSL | hsl(309, 15%, 34%) |
| OKLCH | oklch(44.5% 0.049 331.7) |
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 #644A60 | 7.80:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #644A60 | 2.69:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #644A60 text on white | 7.80:1 | AAA | Lc 87.1 | Fine for body text |
| #644A60 text on black | 2.69:1 | Fails | Lc -15.0 | 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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#E0D5DE
oklch(88.4% 0.017 331.6)
-
Step 300
300
#CCBAC9
oklch(80.8% 0.029 331.3)
-
Step 400
400
#B297AD
oklch(70.7% 0.044 332.3)
-
Step 500
500
#9F7D99
oklch(63.1% 0.057 332.4)
-
Step 600
600
#896684
oklch(55.6% 0.062 331.3)
-
Step 700
700
#755470
oklch(49.1% 0.06 331.8)
-
Step 800
800 (this color)
#644A60
oklch(44.5% 0.049 331.7)
-
Step 900
900
#4E3A4B
oklch(37.7% 0.039 331.5)
-
Step 950
950
#2E222C
oklch(27% 0.025 332)
#644A60 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) | #495061 | 0.046 |
| Deuteranopia (no green cones) | #4F535F | 0.043 |
| Tritanopia (no blue cones) | #664B52 | 0.025 |
| Achromatopsia (no color) | #525252 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644A60
#644A60
oklch(44.5% 0.049 331.7)
- #3F5C46
#3F5C46
oklch(44.5% 0.05 151.5)
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 #644A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.043
- Dusty Grape #545775 ΔE 0.048
- Purple Brown #673A3F ΔE 0.058
- Dusk #4E5481 ΔE 0.062
- Dark Mauve #874C62 ΔE 0.066
- YInMn Blue #415A77 ΔE 0.069
- Twilight #4E518B ΔE 0.076
- Slate #516572 ΔE 0.079
Use #644A60 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.