#6B4331
Closest named color: Purple Brown (#673A3F). oklch(42.5% 0.063 44.9), rgb(107, 67, 49).
Aa
White text reads best on this color (8.49:1).
About this color
#6B4331 is a dark, muted brown. In OKLCH its lightness is 42%, its chroma 0.063 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.040 away. White text reads best on it, at 8.49:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #6B4331 |
| RGB | rgb(107, 67, 49) |
| HSL | hsl(19, 37%, 31%) |
| OKLCH | oklch(42.5% 0.063 44.9) |
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 #6B4331 | 8.49:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #6B4331 | 2.47:1 | Fails | Lc 14.9 | Not readable |
| #6B4331 text on white | 8.49:1 | AAA | Lc 89.1 | Fine for body text |
| #6B4331 text on black | 2.47:1 | Fails | Lc -13.1 | 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
#F8F4F3
oklch(97% 0.005 34.3)
-
Step 100
100
#F0E8E4
oklch(93.6% 0.01 48.6)
-
Step 200
200
#E5D5CE
oklch(88.4% 0.02 45.2)
-
Step 300
300
#D6BAAE
oklch(81% 0.036 44.6)
-
Step 400
400
#C19683
oklch(70.8% 0.059 45)
-
Step 500
500
#B07B64
oklch(63.1% 0.075 44.4)
-
Step 600
600
#9B644B
oklch(55.7% 0.081 45.1)
-
Step 700
700
#84523C
oklch(49% 0.075 44.3)
-
Step 800
800 (this color)
#6B4331
oklch(42.5% 0.063 44.9)
-
Step 900
900
#57392C
oklch(37.6% 0.048 44.2)
-
Step 950
950
#33221A
oklch(27% 0.03 46.2)
#6B4331 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) | #4D4830 | 0.056 |
| Deuteranopia (no green cones) | #575031 | 0.051 |
| Tritanopia (no blue cones) | #743C3E | 0.036 |
| Achromatopsia (no color) | #4D4D4D | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B4331
#6B4331
oklch(42.5% 0.063 44.9)
- #225568
#225568
oklch(42.4% 0.062 225.7)
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 #6B4331, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.040
- Mud Brown #60460F ΔE 0.048
- Brownish Purple #76424E ΔE 0.051
- Milk Chocolate #7F4E1E ΔE 0.058
- Chestnut #742802 ΔE 0.066
- Saddle Brown #8B4513 ΔE 0.068
- Medium Brown #7F5112 ΔE 0.069
- Rust Brown #8B3103 ΔE 0.071
Use #6B4331 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.