#A37F4B
Closest named color: Coffee (#A6814C). oklch(62% 0.082 75.4), rgb(163, 127, 75).
Aa
Black text reads best on this color (5.69:1).
About this color
#A37F4B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 62%, its chroma 0.082 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Coffee (#A6814C), ΔE 0.008 away. Black text reads best on it, at 5.69:1.
| Hue family | Browns |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Coffee (#A6814C) |
| Black text | 5.69:1 |
| White text | 3.68:1 |
Values
| HEX | #A37F4B |
| RGB | rgb(163, 127, 75) |
| HSL | hsl(35, 37%, 47%) |
| OKLCH | oklch(62% 0.082 75.4) |
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 #A37F4B | 3.68:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #A37F4B | 5.69:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #A37F4B text on white | 3.68:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #A37F4B text on black | 5.69:1 | AA | Lc -37.3 | 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 500.
-
Step 50
50
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EEE9E1
oklch(93.6% 0.012 79.8)
-
Step 200
200
#E2D7C9
oklch(88.4% 0.022 74.1)
-
Step 300
300
#D0BEA4
oklch(81% 0.041 77.1)
-
Step 400
400
#B89B73
oklch(70.6% 0.064 75.3)
-
Step 500
500 (this color)
#A37F4B
oklch(62% 0.082 75.4)
-
Step 600
600
#926B31
oklch(55.6% 0.09 74.8)
-
Step 700
700
#7C5924
oklch(49% 0.083 74.8)
-
Step 800
800
#65491F
oklch(42.7% 0.069 75)
-
Step 900
900
#523D1F
oklch(37.6% 0.053 74.8)
-
Step 950
950
#302413
oklch(27% 0.034 75.2)
#A37F4B 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) | #8D8047 | 0.037 |
| Deuteranopia (no green cones) | #95894C | 0.034 |
| Tritanopia (no blue cones) | #AF7572 | 0.070 |
| Achromatopsia (no color) | #858585 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37F4B
#A37F4B
oklch(62% 0.082 75.4)
- #6488B7
#6488B7
oklch(61.9% 0.082 255.4)
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 #A37F4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Coffee #A6814C ΔE 0.008
- Puce #A57E52 ΔE 0.010
- Tan Brown #AB7E4C ΔE 0.014
- Light Brown #AD8150 ΔE 0.019
- Mocha #9D7651 ΔE 0.030
- Leather #AC7434 ΔE 0.031
- Dark Tan #AF884A ΔE 0.033
- Clay Brown #B2713D ΔE 0.040
Use #A37F4B 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.