#644041
Closest named color: Purple Brown (#673A3F). oklch(41.3% 0.051 17.7), rgb(100, 64, 65).
Aa
White text reads best on this color (8.93:1).
About this color
#644041 is a dark, muted red. In OKLCH its lightness is 41%, its chroma 0.051 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.016 away. White text reads best on it, at 8.93:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.35:1 |
| White text | 8.93:1 |
Values
| HEX | #644041 |
| RGB | rgb(100, 64, 65) |
| HSL | hsl(358, 22%, 32%) |
| OKLCH | oklch(41.3% 0.051 17.7) |
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 #644041 | 8.93:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #644041 | 2.35:1 | Fails | Lc 13.6 | Not readable |
| #644041 text on white | 8.93:1 | AAA | Lc 90.4 | Preferred for body text |
| #644041 text on black | 2.35:1 | Fails | Lc -11.9 | Not readable |
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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E8
oklch(93.6% 0.008 17.3)
-
Step 200
200
#E4D5D5
oklch(88.5% 0.017 17.5)
-
Step 300
300
#D3B9B9
oklch(80.8% 0.03 17.8)
-
Step 400
400
#BC9596
oklch(70.6% 0.047 16.6)
-
Step 500
500
#AB7B7C
oklch(63.1% 0.06 17.5)
-
Step 600
600
#966465
oklch(55.7% 0.065 18)
-
Step 700
700
#805254
oklch(49% 0.062 16.7)
-
Step 800
800 (this color)
#644041
oklch(41.3% 0.051 17.7)
-
Step 900
900
#55393A
oklch(37.7% 0.04 16.8)
-
Step 950
950
#322222
oklch(27.2% 0.025 18.8)
#644041 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) | #474541 | 0.053 |
| Deuteranopia (no green cones) | #4F4C40 | 0.050 |
| Tritanopia (no blue cones) | #6B3C41 | 0.016 |
| Achromatopsia (no color) | #4A4A4A | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644041
#644041
oklch(41.3% 0.051 17.7)
- #265455
#265455
oklch(41.4% 0.05 197.3)
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 #644041, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.016
- Brownish Purple #76424E ΔE 0.041
- Mud Brown #60460F ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.071
- Chestnut #742802 ΔE 0.077
- Milk Chocolate #7F4E1E ΔE 0.086
- Red Brown #8B2E16 ΔE 0.088
- Dark Slate Gray #2F4F4F ΔE 0.089
Use #644041 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.