#644D42
Closest named color: Brownish Purple (#76424E). oklch(44.1% 0.036 46.8), rgb(100, 77, 66).
Aa
White text reads best on this color (7.82:1).
About this color
#644D42 is a dark, muted brown. In OKLCH its lightness is 44%, its chroma 0.036 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.052 away. White text reads best on it, at 7.82:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #644D42 |
| RGB | rgb(100, 77, 66) |
| HSL | hsl(19, 20%, 33%) |
| OKLCH | oklch(44.1% 0.036 46.8) |
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 #644D42 | 7.82:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #644D42 | 2.68:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #644D42 text on white | 7.82:1 | AAA | Lc 87.2 | Fine for body text |
| #644D42 text on black | 2.68:1 | Fails | Lc -15.0 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E6
oklch(93.6% 0.006 59.6)
-
Step 200
200
#E0D7D3
oklch(88.5% 0.011 45.7)
-
Step 300
300
#CDBDB5
oklch(80.9% 0.021 48.4)
-
Step 400
400
#B39B8F
oklch(70.7% 0.033 48.2)
-
Step 500
500
#A08274
oklch(63.1% 0.042 46.4)
-
Step 600
600
#8B6B5C
oklch(55.5% 0.047 46.3)
-
Step 700
700
#76594C
oklch(49% 0.044 45.3)
-
Step 800
800 (this color)
#644D42
oklch(44.1% 0.036 46.8)
-
Step 900
900
#4E3D35
oklch(37.6% 0.027 46.5)
-
Step 950
950
#2E241F
oklch(27% 0.018 48)
#644D42 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) | #534F41 | 0.030 |
| Deuteranopia (no green cones) | #585442 | 0.028 |
| Tritanopia (no blue cones) | #6A494A | 0.023 |
| Achromatopsia (no color) | #525252 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644D42
#644D42
oklch(44.1% 0.036 46.8)
- #3E5762
#3E5762
oklch(44.1% 0.035 227)
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 #644D42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.052
- Purple Brown #673A3F ΔE 0.053
- Mud Brown #60460F ΔE 0.059
- Milk Chocolate #7F4E1E ΔE 0.064
- Medium Brown #7F5112 ΔE 0.073
- Olive Brown #645403 ΔE 0.073
- Green Brown #544E03 ΔE 0.078
- Dusty Grape #545775 ΔE 0.080
Use #644D42 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.