#A37028
Closest named color: Leather (#AC7434). oklch(58.5% 0.107 71.7), rgb(163, 112, 40).
Aa
Black text reads best on this color (4.90:1).
About this color
#A37028 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.107 and its hue 72°. Its hue sits on the warm side of the wheel. The nearest named color is Leather (#AC7434), ΔE 0.022 away. Black text reads best on it, at 4.90:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.107) |
| Temperature | warm |
| Nearest name | Leather (#AC7434) |
| Black text | 4.90:1 |
| White text | 4.28:1 |
Values
| HEX | #A37028 |
| RGB | rgb(163, 112, 40) |
| HSL | hsl(35, 61%, 40%) |
| OKLCH | oklch(58.5% 0.107 71.7) |
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 #A37028 | 4.28:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #A37028 | 4.90:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #A37028 text on white | 4.28:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #A37028 text on black | 4.90:1 | AA | Lc -32.3 | 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 600.
-
Step 50
50
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#F0E9E0
oklch(93.7% 0.014 74.4)
-
Step 200
200
#E5D7C6
oklch(88.6% 0.028 72.8)
-
Step 300
300
#D5BC9F
oklch(80.9% 0.049 71.2)
-
Step 400
400
#BF996A
oklch(70.7% 0.078 72)
-
Step 500
500
#AF7F41
oklch(63.2% 0.099 71.3)
-
Step 600
600 (this color)
#A37028
oklch(58.5% 0.107 71.7)
-
Step 700
700
#83560E
oklch(49.1% 0.1 72.1)
-
Step 800
800
#6B4611
oklch(42.7% 0.083 70.9)
-
Step 900
900
#573B16
oklch(37.7% 0.065 70.9)
-
Step 950
950
#33230E
oklch(27% 0.041 72)
#A37028 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) | #82731E | 0.059 |
| Deuteranopia (no green cones) | #8E7F2A | 0.051 |
| Tritanopia (no blue cones) | #B26361 | 0.088 |
| Achromatopsia (no color) | #7A7A7A | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37028
#A37028
oklch(58.5% 0.107 71.7)
- #497FBA
#497FBA
oklch(58.6% 0.108 252)
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 #A37028, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leather #AC7434 ΔE 0.022
- Caramel #AF6F09 ΔE 0.023
- Bronze #A87900 ΔE 0.034
- Clay Brown #B2713D ΔE 0.035
- Umber #B26400 ΔE 0.036
- Mocha #9D7651 ΔE 0.039
- Brown Orange #B96902 ΔE 0.040
- Earth #A2653E ΔE 0.041
Use #A37028 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.