#AC4733
Closest named color: Sienna (#A0522D). oklch(52.8% 0.137 33), rgb(172, 71, 51).
Aa
White text reads best on this color (5.67:1).
About this color
#AC4733 is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.137 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.034 away. White text reads best on it, at 5.67:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #AC4733 |
| RGB | rgb(172, 71, 51) |
| HSL | hsl(10, 54%, 44%) |
| OKLCH | oklch(52.8% 0.137 33) |
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 #AC4733 | 5.67:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #AC4733 | 3.70:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #AC4733 text on white | 5.67:1 | AA | Lc 77.7 | Fine for body text |
| #AC4733 text on black | 3.70:1 | AA large text | Lc -24.1 | 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
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#EFD2CB
oklch(88.6% 0.034 33.8)
-
Step 300
300
#E6B3A7
oklch(81% 0.062 33.5)
-
Step 400
400
#D78979
oklch(70.7% 0.099 32.2)
-
Step 500
500
#CA6A56
oklch(63.1% 0.126 33)
-
Step 600
600 (this color)
#AC4733
oklch(52.8% 0.137 33)
-
Step 700
700
#9C3F2D
oklch(49.1% 0.128 32.8)
-
Step 800
800
#7E3526
oklch(42.6% 0.105 33.2)
-
Step 900
900
#662F24
oklch(37.7% 0.082 32.7)
-
Step 950
950
#3C1C15
oklch(27% 0.052 33.4)
#AC4733 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) | #625931 | 0.140 |
| Deuteranopia (no green cones) | #7B6F30 | 0.129 |
| Tritanopia (no blue cones) | #BD3143 | 0.055 |
| Achromatopsia (no color) | #676767 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4733
#AC4733
oklch(52.8% 0.137 33)
- #00798B
#00798B
oklch(52.9% 0.092 212.7)
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 #AC4733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.034
- Dull Red #BB3F3F ΔE 0.036
- Sinopia #BB3E03 ΔE 0.038
- Burnt Umber #A0450E ΔE 0.039
- Cinnamon #AC4F06 ΔE 0.040
- Dusty Red #B9484E ΔE 0.042
- Rusty Red #AF2F0D ΔE 0.043
- Brick #A03623 ΔE 0.045
Use #AC4733 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.