#6D511B
Closest named color: Olive Brown (#645403). oklch(45.4% 0.079 80.5), rgb(109, 81, 27).
Aa
White text reads best on this color (7.38:1).
About this color
#6D511B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 45%, its chroma 0.079 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.026 away. White text reads best on it, at 7.38:1.
| Hue family | Browns |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.84:1 |
| White text | 7.38:1 |
Values
| HEX | #6D511B |
| RGB | rgb(109, 81, 27) |
| HSL | hsl(40, 60%, 27%) |
| OKLCH | oklch(45.4% 0.079 80.5) |
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 #6D511B | 7.38:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #6D511B | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #6D511B text on white | 7.38:1 | AAA | Lc 85.5 | Fine for body text |
| #6D511B text on black | 2.84:1 | Fails | Lc -16.5 | Dividers and decoration only |
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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EEE9E0
oklch(93.5% 0.013 82.4)
-
Step 200
200
#E2D8C7
oklch(88.6% 0.025 81.1)
-
Step 300
300
#D0BEA0
oklch(80.9% 0.045 80.5)
-
Step 400
400
#B99C6B
oklch(70.7% 0.074 80.2)
-
Step 500
500
#A78342
oklch(63.1% 0.094 80.4)
-
Step 600
600
#926C1F
oklch(55.6% 0.102 80.7)
-
Step 700
700
#7D5A10
oklch(49.2% 0.096 80.3)
-
Step 800
800 (this color)
#6D511B
oklch(45.4% 0.079 80.5)
-
Step 900
900
#523E17
oklch(37.7% 0.061 81.6)
-
Step 950
950
#30240F
oklch(26.9% 0.038 80)
#6D511B 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) | #5C5114 | 0.032 |
| Deuteranopia (no green cones) | #63581D | 0.025 |
| Tritanopia (no blue cones) | #774946 | 0.069 |
| Achromatopsia (no color) | #565656 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D511B
#6D511B
oklch(45.4% 0.079 80.5)
- #3C5682
#3C5682
oklch(45.3% 0.079 260.5)
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 #6D511B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.026
- Medium Brown #7F5112 ΔE 0.033
- Milk Chocolate #7F4E1E ΔE 0.035
- Mud #735C12 ΔE 0.036
- Mud Brown #60460F ΔE 0.042
- Greeny Brown #696006 ΔE 0.049
- Green Brown #544E03 ΔE 0.051
- Saddle Brown #8B4513 ΔE 0.061
Use #6D511B 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.