#6B511E
Closest named color: Olive Brown (#645403). oklch(45.2% 0.076 81.4), rgb(107, 81, 30).
Aa
White text reads best on this color (7.44:1).
About this color
#6B511E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 45%, its chroma 0.076 and its hue 81°. 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 7.44:1.
| Hue family | Browns |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #6B511E |
| RGB | rgb(107, 81, 30) |
| HSL | hsl(40, 56%, 27%) |
| OKLCH | oklch(45.2% 0.076 81.4) |
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 #6B511E | 7.44:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #6B511E | 2.82:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #6B511E text on white | 7.44:1 | AAA | Lc 85.8 | Fine for body text |
| #6B511E text on black | 2.82:1 | Fails | Lc -16.3 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EEE9E0
oklch(93.5% 0.013 82.4)
-
Step 200
200
#E1D8C7
oklch(88.5% 0.025 83.4)
-
Step 300
300
#CFBEA1
oklch(80.8% 0.044 81.1)
-
Step 400
400
#B79D6D
oklch(70.8% 0.071 82.4)
-
Step 500
500
#A58445
oklch(63.1% 0.091 82)
-
Step 600
600
#906D25
oklch(55.6% 0.098 81.9)
-
Step 700
700
#7B5B17
oklch(49.2% 0.091 81.7)
-
Step 800
800 (this color)
#6B511E
oklch(45.2% 0.076 81.4)
-
Step 900
900
#513E19
oklch(37.6% 0.059 81.9)
-
Step 950
950
#302510
oklch(27.2% 0.038 82.2)
#6B511E 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) | #5C5118 | 0.028 |
| Deuteranopia (no green cones) | #625820 | 0.024 |
| Tritanopia (no blue cones) | #744946 | 0.066 |
| Achromatopsia (no color) | #555555 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B511E
#6B511E
oklch(45.2% 0.076 81.4)
- #3E5680
#3E5680
oklch(45.3% 0.075 261.1)
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 #6B511E, 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 0.037
- Milk Chocolate #7F4E1E ΔE 0.037
- Mud #735C12 ΔE 0.039
- Mud Brown #60460F ΔE 0.040
- Green Brown #544E03 ΔE 0.049
- Greeny Brown #696006 ΔE 0.050
- Saddle Brown #8B4513 ΔE 0.064
Use #6B511E 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.