#AD5131
Closest named color: Sienna (#A0522D). oklch(54.5% 0.129 39.3), rgb(173, 81, 49).
Aa
White text reads best on this color (5.25:1).
About this color
#AD5131 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.129 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.025 away. White text reads best on it, at 5.25:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #AD5131 |
| RGB | rgb(173, 81, 49) |
| HSL | hsl(15, 56%, 44%) |
| OKLCH | oklch(54.5% 0.129 39.3) |
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 #AD5131 | 5.25:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #AD5131 | 3.99:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #AD5131 text on white | 5.25:1 | AA | Lc 75.5 | Fine for body text |
| #AD5131 text on black | 3.99:1 | AA large text | Lc -26.2 | Dividers and decoration only |
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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EDD3CA
oklch(88.6% 0.032 40.1)
-
Step 300
300
#E3B5A5
oklch(81% 0.058 40.1)
-
Step 400
400
#D38C75
oklch(70.6% 0.093 38.7)
-
Step 500
500
#C56E51
oklch(63% 0.118 39.1)
-
Step 600
600 (this color)
#AD5131
oklch(54.5% 0.129 39.3)
-
Step 700
700
#984427
oklch(49.1% 0.121 39.1)
-
Step 800
800
#7B3922
oklch(42.7% 0.099 39.5)
-
Step 900
900
#643120
oklch(37.7% 0.079 39)
-
Step 950
950
#3B1D14
oklch(27% 0.05 37.5)
#AD5131 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) | #6A5F2D | 0.125 |
| Deuteranopia (no green cones) | #80742F | 0.116 |
| Tritanopia (no blue cones) | #BE3E4A | 0.062 |
| Achromatopsia (no color) | #6C6C6C | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD5131
#AD5131
oklch(54.5% 0.129 39.3)
- #007D97
#007D97
oklch(54.5% 0.099 219.1)
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 #AD5131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.025
- Cinnamon #AC4F06 ΔE 0.027
- Burnt Siena #B75203 ΔE 0.033
- Brick Orange #C14A09 ΔE 0.041
- Sinopia #BB3E03 ΔE 0.042
- Burnt Orange #C04E01 ΔE 0.042
- Burnt Umber #A0450E ΔE 0.044
- Earth #A2653E ΔE 0.047
Use #AD5131 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.