#A1751B
Closest named color: Bronze (#A87900). oklch(59.2% 0.114 79.9), rgb(161, 117, 27).
Aa
Black text reads best on this color (5.07:1).
About this color
#A1751B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.114 and its hue 80°. Its hue sits on the warm side of the wheel. The nearest named color is Bronze (#A87900), ΔE 0.020 away. Black text reads best on it, at 5.07:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Bronze (#A87900) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #A1751B |
| RGB | rgb(161, 117, 27) |
| HSL | hsl(40, 71%, 37%) |
| OKLCH | oklch(59.2% 0.114 79.9) |
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 #A1751B | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #A1751B | 5.07:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #A1751B text on white | 4.13:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #A1751B text on black | 5.07:1 | 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 600.
-
Step 50
50
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#EFE9DF
oklch(93.6% 0.015 80.7)
-
Step 200
200
#E3D7C5
oklch(88.4% 0.028 78.2)
-
Step 300
300
#D2BE9C
oklch(81% 0.051 80.9)
-
Step 400
400
#BC9B64
oklch(70.7% 0.082 79.6)
-
Step 500
500
#AB8237
oklch(63.2% 0.105 79.8)
-
Step 600
600 (this color)
#A1751B
oklch(59.2% 0.114 79.9)
-
Step 700
700
#7F5900
oklch(49.2% 0.102 79.8)
-
Step 800
800
#684802
oklch(42.6% 0.087 79.2)
-
Step 900
900
#543D10
oklch(37.7% 0.068 80.3)
-
Step 950
950
#31240B
oklch(27% 0.043 81.4)
#A1751B 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) | #867605 | 0.049 |
| Deuteranopia (no green cones) | #91811F | 0.040 |
| Tritanopia (no blue cones) | #B06864 | 0.099 |
| Achromatopsia (no color) | #7D7D7D | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1751B
#A1751B
oklch(59.2% 0.114 79.9)
- #547EC1
#547EC1
oklch(59.3% 0.113 259.4)
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 #A1751B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bronze #A87900 ΔE 0.020
- Caramel #AF6F09 ΔE 0.026
- Leather #AC7434 ΔE 0.029
- Hazel #8E7618 ΔE 0.033
- Mustard Brown #AC7E04 ΔE 0.034
- Golden Brown #B27A01 ΔE 0.034
- Clay Brown #B2713D ΔE 0.046
- Coffee #A6814C ΔE 0.047
Use #A1751B 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.