#AC4D3C
Closest named color: Sienna (#A0522D). oklch(53.9% 0.129 31.9), rgb(172, 77, 60).
Aa
White text reads best on this color (5.41:1).
About this color
#AC4D3C is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.129 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.032 away. White text reads best on it, at 5.41:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.88:1 |
| White text | 5.41:1 |
Values
| HEX | #AC4D3C |
| RGB | rgb(172, 77, 60) |
| HSL | hsl(9, 48%, 45%) |
| OKLCH | oklch(53.9% 0.129 31.9) |
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 #AC4D3C | 5.41:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #AC4D3C | 3.88:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #AC4D3C text on white | 5.41:1 | AA | Lc 76.4 | Fine for body text |
| #AC4D3C text on black | 3.88:1 | AA large text | Lc -25.3 | 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
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EED2CC
oklch(88.5% 0.033 32.1)
-
Step 300
300
#E4B4AA
oklch(81% 0.058 31.9)
-
Step 400
400
#D48B7C
oklch(70.7% 0.093 32.2)
-
Step 500
500
#C76C5B
oklch(63.1% 0.119 31.7)
-
Step 600
600 (this color)
#AC4D3C
oklch(53.9% 0.129 31.9)
-
Step 700
700
#994233
oklch(49.1% 0.12 31.6)
-
Step 800
800
#7C372B
oklch(42.7% 0.099 31.6)
-
Step 900
900
#643027
oklch(37.6% 0.077 31.2)
-
Step 950
950
#3B1D17
oklch(27.1% 0.049 32.3)
#AC4D3C 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) | #665D3A | 0.130 |
| Deuteranopia (no green cones) | #7D723A | 0.121 |
| Tritanopia (no blue cones) | #BC3B49 | 0.050 |
| Achromatopsia (no color) | #6A6A6A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4D3C
#AC4D3C
oklch(53.9% 0.129 31.9)
- #007C8E
#007C8E
oklch(53.8% 0.094 212.3)
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 #AC4D3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.032
- Dusty Red #B9484E ΔE 0.037
- Dull Red #BB3F3F ΔE 0.037
- Cinnamon #AC4F06 ΔE 0.043
- Sinopia #BB3E03 ΔE 0.046
- Light Maroon #A24857 ΔE 0.047
- Burnt Umber #A0450E ΔE 0.048
- Burnt Siena #B75203 ΔE 0.049
Use #AC4D3C 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.