#AC5133
Closest named color: Sienna (#A0522D). oklch(54.3% 0.127 38.6), rgb(172, 81, 51).
Aa
White text reads best on this color (5.27:1).
About this color
#AC5133 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.127 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.024 away. White text reads best on it, at 5.27:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.127) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.97:1 |
| White text | 5.27:1 |
Values
| HEX | #AC5133 |
| RGB | rgb(172, 81, 51) |
| HSL | hsl(15, 54%, 44%) |
| OKLCH | oklch(54.3% 0.127 38.6) |
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 #AC5133 | 5.27:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #AC5133 | 3.97:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #AC5133 text on white | 5.27:1 | AA | Lc 75.7 | Fine for body text |
| #AC5133 text on black | 3.97:1 | AA large text | Lc -26.0 | 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
#F4E6E2
oklch(93.5% 0.016 36.5)
-
Step 200
200
#EDD3CA
oklch(88.6% 0.032 40.1)
-
Step 300
300
#E2B5A6
oklch(80.9% 0.057 39.2)
-
Step 400
400
#D28D76
oklch(70.7% 0.091 39.2)
-
Step 500
500
#C56F53
oklch(63.2% 0.117 38.7)
-
Step 600
600 (this color)
#AC5133
oklch(54.3% 0.127 38.6)
-
Step 700
700
#974529
oklch(49.1% 0.118 39.1)
-
Step 800
800
#7B3923
oklch(42.7% 0.098 38.8)
-
Step 900
900
#633222
oklch(37.7% 0.076 38.7)
-
Step 950
950
#3A1D14
oklch(26.8% 0.049 38)
#AC5133 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) | #695F30 | 0.124 |
| Deuteranopia (no green cones) | #807331 | 0.113 |
| Tritanopia (no blue cones) | #BC3F4A | 0.059 |
| Achromatopsia (no color) | #6C6C6C | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC5133
#AC5133
oklch(54.3% 0.127 38.6)
- #007D96
#007D96
oklch(54.5% 0.098 218.3)
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 #AC5133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.024
- Cinnamon #AC4F06 ΔE 0.029
- Burnt Siena #B75203 ΔE 0.036
- Sinopia #BB3E03 ΔE 0.043
- Brick Orange #C14A09 ΔE 0.044
- Burnt Umber #A0450E ΔE 0.044
- Burnt Orange #C04E01 ΔE 0.045
- Earth #A2653E ΔE 0.047
Use #AC5133 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.