#644D47
Closest named color: Brownish Purple (#76424E). oklch(44.2% 0.033 35.1), rgb(100, 77, 71).
Aa
White text reads best on this color (7.79:1).
About this color
#644D47 is a dark, muted red. In OKLCH its lightness is 44%, its chroma 0.033 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.048 away. White text reads best on it, at 7.79:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #644D47 |
| RGB | rgb(100, 77, 71) |
| HSL | hsl(12, 17%, 34%) |
| OKLCH | oklch(44.2% 0.033 35.1) |
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 #644D47 | 7.79:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #644D47 | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #644D47 text on white | 7.79:1 | AAA | Lc 87.0 | Fine for body text |
| #644D47 text on black | 2.69:1 | Fails | Lc -15.1 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E7
oklch(93.7% 0.005 48.7)
-
Step 200
200
#E0D7D4
oklch(88.5% 0.011 39.4)
-
Step 300
300
#CDBDB8
oklch(81% 0.02 38.1)
-
Step 400
400
#B39A94
oklch(70.7% 0.031 33.7)
-
Step 500
500
#A0817A
oklch(63.1% 0.04 32.9)
-
Step 600
600
#8A6B63
oklch(55.6% 0.042 34.9)
-
Step 700
700
#755952
oklch(49.1% 0.039 34.4)
-
Step 800
800 (this color)
#644D47
oklch(44.2% 0.033 35.1)
-
Step 900
900
#4E3D38
oklch(37.7% 0.025 37)
-
Step 950
950
#2E2421
oklch(27.1% 0.016 37.3)
#644D47 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) | #524F47 | 0.031 |
| Deuteranopia (no green cones) | #575447 | 0.029 |
| Tritanopia (no blue cones) | #6A4A4B | 0.016 |
| Achromatopsia (no color) | #525252 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644D47
#644D47
oklch(44.2% 0.033 35.1)
- #3E585F
#3E585F
oklch(44.2% 0.033 216.2)
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 #644D47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.048
- Purple Brown #673A3F ΔE 0.052
- Mud Brown #60460F ΔE 0.067
- Milk Chocolate #7F4E1E ΔE 0.069
- Dusty Grape #545775 ΔE 0.073
- Medium Brown #7F5112 ΔE 0.078
- Dark Mauve #874C62 ΔE 0.080
- Dark Slate Gray #2F4F4F ΔE 0.080
Use #644D47 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.