#6D3618
Closest named color: Chestnut (#742802). oklch(39.9% 0.089 47), rgb(109, 54, 24).
Aa
White text reads best on this color (9.58:1).
About this color
#6D3618 is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.089 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.031 away. White text reads best on it, at 9.58:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #6D3618 |
| RGB | rgb(109, 54, 24) |
| HSL | hsl(21, 64%, 26%) |
| OKLCH | oklch(39.9% 0.089 47) |
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 #6D3618 | 9.58:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #6D3618 | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #6D3618 text on white | 9.58:1 | AAA | Lc 91.8 | Preferred for body text |
| #6D3618 text on black | 2.19:1 | Fails | Lc -10.6 | 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 900.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E6DF
oklch(93.5% 0.019 46.8)
-
Step 200
200
#EFD2C5
oklch(88.4% 0.037 45.6)
-
Step 300
300
#E6B49C
oklch(80.9% 0.067 46.9)
-
Step 400
400
#D78B65
oklch(70.6% 0.107 47.1)
-
Step 500
500
#CB6C39
oklch(63.2% 0.137 46.9)
-
Step 600
600
#B6510F
oklch(55.6% 0.148 46.7)
-
Step 700
700
#9C4200
oklch(49.2% 0.136 47)
-
Step 800
800
#7F3606
oklch(42.6% 0.114 46.8)
-
Step 900
900 (this color)
#6D3618
oklch(39.9% 0.089 47)
-
Step 950
950
#3C1D0C
oklch(27% 0.056 47.7)
#6D3618 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) | #453E14 | 0.080 |
| Deuteranopia (no green cones) | #534A17 | 0.072 |
| Tritanopia (no blue cones) | #782B30 | 0.050 |
| Achromatopsia (no color) | #454545 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D3618
#6D3618
oklch(39.9% 0.089 47)
- #004F67
#004F67
oklch(39.9% 0.077 226.7)
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 #6D3618, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.031
- Purple Brown #673A3F ΔE 0.051
- Mud Brown #60460F ΔE 0.052
- Rust Brown #8B3103 ΔE 0.060
- Red Brown #8B2E16 ΔE 0.061
- Reddy Brown #6E1005 ΔE 0.071
- Brown Red #922B05 ΔE 0.074
- Brownish Purple #76424E ΔE 0.075
Use #6D3618 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.