#644435
Closest named color: Purple Brown (#673A3F). oklch(41.9% 0.051 46), rgb(100, 68, 53).
Aa
White text reads best on this color (8.67:1).
About this color
#644435 is a dark, muted brown. In OKLCH its lightness is 42%, its chroma 0.051 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.037 away. White text reads best on it, at 8.67:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #644435 |
| RGB | rgb(100, 68, 53) |
| HSL | hsl(19, 31%, 30%) |
| OKLCH | oklch(41.9% 0.051 46) |
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 #644435 | 8.67:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #644435 | 2.42:1 | Fails | Lc 14.3 | Not readable |
| #644435 text on white | 8.67:1 | AAA | Lc 89.7 | Fine for body text |
| #644435 text on black | 2.42:1 | Fails | Lc -12.6 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E3D6D0
oklch(88.5% 0.017 46.6)
-
Step 300
300
#D2BBB1
oklch(80.9% 0.03 45)
-
Step 400
400
#BB9888
oklch(70.7% 0.048 45.9)
-
Step 500
500
#A97E6B
oklch(63% 0.061 44.9)
-
Step 600
600
#946752
oklch(55.5% 0.066 45.9)
-
Step 700
700
#7E5643
oklch(49.2% 0.061 46.3)
-
Step 800
800 (this color)
#644435
oklch(41.9% 0.051 46)
-
Step 900
900
#533B30
oklch(37.6% 0.039 45.7)
-
Step 950
950
#31231C
oklch(27.1% 0.025 47.8)
#644435 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) | #4C4734 | 0.044 |
| Deuteranopia (no green cones) | #544E35 | 0.040 |
| Tritanopia (no blue cones) | #6C3F40 | 0.030 |
| Achromatopsia (no color) | #4B4B4B | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644435
#644435
oklch(41.9% 0.051 46)
- #2C5262
#2C5262
oklch(41.7% 0.051 227.3)
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 #644435, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Mud Brown #60460F ΔE 0.047
- Brownish Purple #76424E ΔE 0.055
- Milk Chocolate #7F4E1E ΔE 0.068
- Chestnut #742802 ΔE 0.073
- Green Brown #544E03 ΔE 0.074
- Charcoal Grey #3C4142 ΔE 0.074
- Olive Brown #645403 ΔE 0.076
Use #644435 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.