#AC4A2F
Closest named color: Sienna (#A0522D). oklch(53.2% 0.135 36.3), rgb(172, 74, 47).
Aa
White text reads best on this color (5.56:1).
About this color
#AC4A2F is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.135 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.028 away. White text reads best on it, at 5.56:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #AC4A2F |
| RGB | rgb(172, 74, 47) |
| HSL | hsl(13, 57%, 43%) |
| OKLCH | oklch(53.2% 0.135 36.3) |
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 #AC4A2F | 5.56:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #AC4A2F | 3.77:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #AC4A2F text on white | 5.56:1 | AA | Lc 77.2 | Fine for body text |
| #AC4A2F text on black | 3.77:1 | AA large text | Lc -24.6 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EED2CA
oklch(88.5% 0.033 36.5)
-
Step 300
300
#E5B3A6
oklch(80.9% 0.061 35)
-
Step 400
400
#D68B76
oklch(70.8% 0.097 36.4)
-
Step 500
500
#C96C52
oklch(63.2% 0.124 36.5)
-
Step 600
600 (this color)
#AC4A2F
oklch(53.2% 0.135 36.3)
-
Step 700
700
#9B4129
oklch(49.1% 0.126 35.9)
-
Step 800
800
#7E3623
oklch(42.7% 0.105 35.8)
-
Step 900
900
#653021
oklch(37.7% 0.081 36.7)
-
Step 950
950
#3C1D14
oklch(27.2% 0.051 37)
#AC4A2F 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) | #655B2C | 0.134 |
| Deuteranopia (no green cones) | #7D702C | 0.123 |
| Tritanopia (no blue cones) | #BD3544 | 0.058 |
| Achromatopsia (no color) | #686868 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4A2F
#AC4A2F
oklch(53.2% 0.135 36.3)
- #00798F
#00798F
oklch(53.1% 0.094 216.3)
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 #AC4A2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.028
- Cinnamon #AC4F06 ΔE 0.032
- Sinopia #BB3E03 ΔE 0.036
- Burnt Umber #A0450E ΔE 0.036
- Dull Red #BB3F3F ΔE 0.042
- Burnt Siena #B75203 ΔE 0.042
- Brick Orange #C14A09 ΔE 0.046
- Rusty Red #AF2F0D ΔE 0.047
Use #AC4A2F 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.