#B66828
Closest named color: Copper (#B66325). oklch(59.5% 0.125 55.9), rgb(182, 104, 40).
Aa
Black text reads best on this color (4.99:1).
About this color
#B66828 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.125 and its hue 56°. Its hue sits on the warm side of the wheel. The nearest named color is Copper (#B66325), ΔE 0.012 away. Black text reads best on it, at 4.99:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.125) |
| Temperature | warm |
| Nearest name | Copper (#B66325) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #B66828 |
| RGB | rgb(182, 104, 40) |
| HSL | hsl(27, 64%, 44%) |
| OKLCH | oklch(59.5% 0.125 55.9) |
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 #B66828 | 4.20:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #B66828 | 4.99:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #B66828 text on white | 4.20:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #B66828 text on black | 4.99:1 | AA | Lc -33.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F4E7DF
oklch(93.6% 0.018 54)
-
Step 200
200
#ECD4C4
oklch(88.5% 0.034 55.9)
-
Step 300
300
#E0B79B
oklch(80.9% 0.061 56)
-
Step 400
400
#D09063
oklch(70.7% 0.098 55.5)
-
Step 500
500 (this color)
#B66828
oklch(59.5% 0.125 55.9)
-
Step 600
600
#AD5A00
oklch(55.6% 0.136 56.3)
-
Step 700
700
#924B00
oklch(49.1% 0.12 56.3)
-
Step 800
800
#793D00
oklch(42.8% 0.105 56.2)
-
Step 900
900
#62340E
oklch(37.7% 0.082 55.4)
-
Step 950
950
#391F0B
oklch(27% 0.051 55.8)
#B66828 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) | #7F711F | 0.099 |
| Deuteranopia (no green cones) | #928328 | 0.090 |
| Tritanopia (no blue cones) | #C7575B | 0.084 |
| Achromatopsia (no color) | #7C7C7C | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B66828
#B66828
oklch(59.5% 0.125 55.9)
- #0B89BF
#0B89BF
oklch(59.6% 0.125 235.8)
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 #B66828, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Copper #B66325 ΔE 0.012
- Tiger's Eye #BC6C25 ΔE 0.016
- Brown Orange #B96902 ΔE 0.018
- Orange Brown #BE6400 ΔE 0.020
- Umber #B26400 ΔE 0.021
- Clay Brown #B2713D ΔE 0.023
- Orangey Brown #B16002 ΔE 0.026
- Caramel #AF6F09 ΔE 0.030
Use #B66828 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.