#6B4337
Closest named color: Purple Brown (#673A3F). oklch(42.6% 0.059 37.4), rgb(107, 67, 55).
Aa
White text reads best on this color (8.45:1).
About this color
#6B4337 is a dark, muted red. In OKLCH its lightness is 43%, its chroma 0.059 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.034 away. White text reads best on it, at 8.45:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #6B4337 |
| RGB | rgb(107, 67, 55) |
| HSL | hsl(14, 32%, 32%) |
| OKLCH | oklch(42.6% 0.059 37.4) |
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 #6B4337 | 8.45:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #6B4337 | 2.48:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #6B4337 text on white | 8.45:1 | AAA | Lc 89.0 | Fine for body text |
| #6B4337 text on black | 2.48:1 | Fails | Lc -13.2 | 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
#F0E8E5
oklch(93.6% 0.01 41.9)
-
Step 200
200
#E5D5D0
oklch(88.5% 0.019 38.1)
-
Step 300
300
#D6B9B1
oklch(80.8% 0.035 35.9)
-
Step 400
400
#C09588
oklch(70.7% 0.055 37.5)
-
Step 500
500
#B07B6B
oklch(63.2% 0.071 37.5)
-
Step 600
600
#9B6352
oklch(55.6% 0.078 37.6)
-
Step 700
700
#845243
oklch(49.1% 0.072 37.5)
-
Step 800
800 (this color)
#6B4337
oklch(42.6% 0.059 37.4)
-
Step 900
900
#573930
oklch(37.7% 0.046 37.4)
-
Step 950
950
#33211C
oklch(26.9% 0.03 36.2)
#6B4337 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) | #4D4836 | 0.056 |
| Deuteranopia (no green cones) | #565037 | 0.052 |
| Tritanopia (no blue cones) | #743D40 | 0.030 |
| Achromatopsia (no color) | #4D4D4D | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B4337
#6B4337
oklch(42.6% 0.059 37.4)
- #225764
#225764
oklch(42.7% 0.059 216.6)
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 #6B4337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.034
- Brownish Purple #76424E ΔE 0.043
- Mud Brown #60460F ΔE 0.055
- Milk Chocolate #7F4E1E ΔE 0.063
- Chestnut #742802 ΔE 0.069
- Saddle Brown #8B4513 ΔE 0.072
- Red Brown #8B2E16 ΔE 0.073
- Medium Brown #7F5112 ΔE 0.074
Use #6B4337 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.