#A3733F
Closest named color: Leather (#AC7434). oklch(59.4% 0.091 66.6), rgb(163, 115, 63).
Aa
Black text reads best on this color (5.08:1).
About this color
#A3733F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.091 and its hue 67°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.019 away. Black text reads best on it, at 5.08:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 5.08:1 |
| White text | 4.13:1 |
Values
| HEX | #A3733F |
| RGB | rgb(163, 115, 63) |
| HSL | hsl(31, 44%, 44%) |
| OKLCH | oklch(59.4% 0.091 66.6) |
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 #A3733F | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #A3733F | 5.08:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #A3733F text on white | 4.13:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #A3733F text on black | 5.08:1 | AA | Lc -33.4 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E8E1
oklch(93.5% 0.013 63.9)
-
Step 200
200
#E5D6C8
oklch(88.4% 0.025 65.5)
-
Step 300
300
#D5BCA3
oklch(81% 0.044 67.1)
-
Step 400
400
#BF9870
oklch(70.6% 0.072 66.9)
-
Step 500
500 (this color)
#A3733F
oklch(59.4% 0.091 66.6)
-
Step 600
600
#9A672C
oklch(55.7% 0.099 67)
-
Step 700
700
#83551E
oklch(49% 0.092 67)
-
Step 800
800
#6B461B
oklch(42.8% 0.077 66.9)
-
Step 900
900
#573B1C
oklch(37.7% 0.06 67)
-
Step 950
950
#332311
oklch(27.1% 0.038 68.3)
#A3733F 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) | #83763A | 0.055 |
| Deuteranopia (no green cones) | #8E8140 | 0.049 |
| Tritanopia (no blue cones) | #B16867 | 0.072 |
| Achromatopsia (no color) | #7D7D7D | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3733F
#A3733F
oklch(59.4% 0.091 66.6)
- #4E83B2
#4E83B2
oklch(59.3% 0.092 246.8)
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 #A3733F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.019
- Mocha #9D7651 ΔE 0.021
- Clay Brown #B2713D ΔE 0.026
- Puce #A57E52 ΔE 0.031
- Tan Brown #AB7E4C ΔE 0.033
- Caramel #AF6F09 ΔE 0.036
- Coffee #A6814C ΔE 0.037
- Earth #A2653E ΔE 0.037
Use #A3733F 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.