#6B571D
Closest named color: Olive Brown (#645403). oklch(46.5% 0.08 89.6), rgb(107, 87, 29).
Aa
White text reads best on this color (6.98:1).
About this color
#6B571D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 47%, its chroma 0.080 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.022 away. White text reads best on it, at 6.98:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 3.00:1 |
| White text | 6.98:1 |
Values
| HEX | #6B571D |
| RGB | rgb(107, 87, 29) |
| HSL | hsl(45, 57%, 27%) |
| OKLCH | oklch(46.5% 0.08 89.6) |
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 #6B571D | 6.98:1 | AA | Lc -89.0 | Fine for body text |
| Black text on #6B571D | 3.00:1 | AA large text | Lc 19.9 | Dividers and decoration only |
| #6B571D text on white | 6.98:1 | AA | Lc 84.1 | Fine for body text |
| #6B571D text on black | 3.00:1 | AA large text | Lc -17.9 | 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 700.
-
Step 50
50
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EDEAE2
oklch(93.7% 0.011 89.7)
-
Step 200
200
#DFD9CA
oklch(88.6% 0.021 88.7)
-
Step 300
300
#CAC0A5
oklch(80.9% 0.038 90.1)
-
Step 400
400
#B09F74
oklch(70.7% 0.062 88.9)
-
Step 500
500
#9C8750
oklch(63% 0.078 89.2)
-
Step 600
600
#877133
oklch(55.6% 0.085 89.9)
-
Step 700
700 (this color)
#6B571D
oklch(46.5% 0.08 89.6)
-
Step 800
800
#5D4D20
oklch(42.6% 0.066 89.8)
-
Step 900
900
#4C4020
oklch(37.6% 0.051 89.3)
-
Step 950
950
#2D2613
oklch(27.1% 0.033 89.9)
#6B571D 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) | #615616 | 0.020 |
| Deuteranopia (no green cones) | #665C20 | 0.016 |
| Tritanopia (no blue cones) | #744F4B | 0.073 |
| Achromatopsia (no color) | #595959 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B571D
#6B571D
oklch(46.5% 0.08 89.6)
- #485786
#485786
oklch(46.5% 0.079 269.7)
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 #6B571D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.022
- Mud #735C12 ΔE 0.023
- Greeny Brown #696006 ΔE 0.033
- Medium Brown #7F5112 ΔE 0.037
- Milk Chocolate #7F4E1E ΔE 0.043
- Camo Green #526525 ΔE 0.053
- Green Brown #544E03 ΔE 0.053
- Mud Green #606602 ΔE 0.054
Use #6B571D 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.