#644C60
Closest named color: Brownish Purple (#76424E). oklch(44.9% 0.044 332.1), rgb(100, 76, 96).
Aa
White text reads best on this color (7.65:1).
About this color
#644C60 is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.044 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 0.044 away. White text reads best on it, at 7.65:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #644C60 |
| RGB | rgb(100, 76, 96) |
| HSL | hsl(310, 14%, 35%) |
| OKLCH | oklch(44.9% 0.044 332.1) |
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 #644C60 | 7.65:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #644C60 | 2.74:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #644C60 text on white | 7.65:1 | AAA | Lc 86.6 | Fine for body text |
| #644C60 text on black | 2.74:1 | Fails | Lc -15.5 | 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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#DFD6DD
oklch(88.5% 0.014 333.1)
-
Step 300
300
#CBBBC8
oklch(80.9% 0.025 332)
-
Step 400
400
#B197AC
oklch(70.6% 0.042 332.6)
-
Step 500
500
#9D7E98
oklch(63.1% 0.053 331.7)
-
Step 600
600
#886782
oklch(55.6% 0.057 332.7)
-
Step 700
700
#73566E
oklch(49.2% 0.052 332.4)
-
Step 800
800 (this color)
#644C60
oklch(44.9% 0.044 332.1)
-
Step 900
900
#4D3B4A
oklch(37.7% 0.035 332)
-
Step 950
950
#2D232B
oklch(27.1% 0.021 333.1)
#644C60 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) | #4C5161 | 0.041 |
| Deuteranopia (no green cones) | #51555F | 0.040 |
| Tritanopia (no blue cones) | #664D53 | 0.023 |
| Achromatopsia (no color) | #535353 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644C60
#644C60
oklch(44.9% 0.044 332.1)
- #425C49
#425C49
oklch(44.8% 0.044 152.7)
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 #644C60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.044
- Dusty Grape #545775 ΔE 0.045
- Purple Brown #673A3F ΔE 0.061
- Dusk #4E5481 ΔE 0.061
- Dark Mauve #874C62 ΔE 0.065
- YInMn Blue #415A77 ΔE 0.066
- Slate #516572 ΔE 0.073
- Twilight #4E518B ΔE 0.076
Use #644C60 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.