#AC573E
Closest named color: Sienna (#A0522D). oklch(55.4% 0.118 37.2), rgb(172, 87, 62).
Aa
White text reads best on this color (5.01:1).
About this color
#AC573E is a medium-dark, moderately saturated red. In OKLCH its lightness is 55%, its chroma 0.118 and its hue 37°. 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 5.01:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #AC573E |
| RGB | rgb(172, 87, 62) |
| HSL | hsl(14, 47%, 46%) |
| OKLCH | oklch(55.4% 0.118 37.2) |
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 #AC573E | 5.01:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #AC573E | 4.18:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #AC573E text on white | 5.01:1 | AA | Lc 74.2 | Content text, not long reading |
| #AC573E text on black | 4.18:1 | AA large text | Lc -27.5 | 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
#F4E7E3
oklch(93.7% 0.015 37.9)
-
Step 200
200
#ECD3CC
oklch(88.6% 0.03 36.2)
-
Step 300
300
#E0B5A9
oklch(80.8% 0.053 36.1)
-
Step 400
400
#CF8E7B
oklch(70.7% 0.084 37)
-
Step 500
500
#C17159
oklch(63.1% 0.108 37.5)
-
Step 600
600 (this color)
#AC573E
oklch(55.4% 0.118 37.2)
-
Step 700
700
#944730
oklch(49.1% 0.11 37.4)
-
Step 800
800
#783B29
oklch(42.7% 0.09 37.3)
-
Step 900
900
#613325
oklch(37.7% 0.071 37.7)
-
Step 950
950
#391E16
oklch(26.9% 0.045 37.3)
#AC573E 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) | #6D643C | 0.115 |
| Deuteranopia (no green cones) | #82763C | 0.105 |
| Tritanopia (no blue cones) | #BC4751 | 0.055 |
| Achromatopsia (no color) | #6F6F6F | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC573E
#AC573E
oklch(55.4% 0.118 37.2)
- #008099
#008099
oklch(55.4% 0.099 217.9)
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 #AC573E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.032
- Earth #A2653E ΔE 0.037
- Cinnamon #AC4F06 ΔE 0.040
- Burnt Siena #B75203 ΔE 0.041
- Copper #B66325 ΔE 0.048
- Dusty Red #B9484E ΔE 0.048
- Sepia #985E2B ΔE 0.048
- Burnt Orange #C04E01 ΔE 0.050
Use #AC573E 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.