#A18040
Closest named color: Coffee (#A6814C). oklch(61.8% 0.092 82.2), rgb(161, 128, 64).
Aa
Black text reads best on this color (5.67:1).
About this color
#A18040 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 62%, its chroma 0.092 and its hue 82°. Its hue sits on the warm side of the wheel. The nearest named color is Coffee (#A6814C), ΔE 0.016 away. Black text reads best on it, at 5.67:1.
| Hue family | Browns |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.092) |
| Temperature | warm |
| Nearest name | Coffee (#A6814C) |
| Black text | 5.67:1 |
| White text | 3.69:1 |
Values
| HEX | #A18040 |
| RGB | rgb(161, 128, 64) |
| HSL | hsl(40, 43%, 44%) |
| OKLCH | oklch(61.8% 0.092 82.2) |
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 #A18040 | 3.69:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #A18040 | 5.67:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #A18040 text on white | 3.69:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #A18040 text on black | 5.67:1 | AA | Lc -37.2 | 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
#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
#CFBEA0
oklch(80.8% 0.045 81.8)
-
Step 400
400
#B79D6C
oklch(70.8% 0.073 82.8)
-
Step 500
500 (this color)
#A18040
oklch(61.8% 0.092 82.2)
-
Step 600
600
#906D22
oklch(55.6% 0.1 82.5)
-
Step 700
700
#7B5B14
oklch(49.2% 0.093 82.2)
-
Step 800
800
#644A15
oklch(42.7% 0.077 81.4)
-
Step 900
900
#513E18
oklch(37.6% 0.06 82.4)
-
Step 950
950
#30250F
oklch(27.2% 0.039 83.1)
#A18040 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) | #8E803A | 0.033 |
| Deuteranopia (no green cones) | #968842 | 0.026 |
| Tritanopia (no blue cones) | #AE7671 | 0.080 |
| Achromatopsia (no color) | #858585 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A18040
#A18040
oklch(61.8% 0.092 82.2)
- #6785BD
#6785BD
oklch(61.7% 0.092 262.4)
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 #A18040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Coffee #A6814C ΔE 0.016
- Tan Brown #AB7E4C ΔE 0.024
- Puce #A57E52 ΔE 0.024
- Light Brown #AD8150 ΔE 0.028
- Leather #AC7434 ΔE 0.033
- Dark Tan #AF884A ΔE 0.034
- Bronze #A87900 ΔE 0.035
- Mustard Brown #AC7E04 ΔE 0.036
Use #A18040 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.