#AC523F
Closest named color: Sienna (#A0522D). oklch(54.7% 0.122 33.3), rgb(172, 82, 63).
Aa
White text reads best on this color (5.20:1).
About this color
#AC523F is a medium-dark, moderately saturated red. In OKLCH its lightness is 55%, its chroma 0.122 and its hue 33°. 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 5.20:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #AC523F |
| RGB | rgb(172, 82, 63) |
| HSL | hsl(10, 46%, 46%) |
| OKLCH | oklch(54.7% 0.122 33.3) |
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 #AC523F | 5.20:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #AC523F | 4.03:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #AC523F text on white | 5.20:1 | AA | Lc 75.3 | Fine for body text |
| #AC523F text on black | 4.03:1 | AA large text | Lc -26.4 | 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
#F4E6E3
oklch(93.5% 0.016 32)
-
Step 200
200
#EDD2CC
oklch(88.5% 0.031 32.6)
-
Step 300
300
#E2B4AA
oklch(80.8% 0.056 32.4)
-
Step 400
400
#D28C7D
oklch(70.7% 0.089 32.6)
-
Step 500
500
#C46E5C
oklch(63.1% 0.113 32.8)
-
Step 600
600 (this color)
#AC523F
oklch(54.7% 0.122 33.3)
-
Step 700
700
#964533
oklch(49.1% 0.113 33.9)
-
Step 800
800
#7A392B
oklch(42.7% 0.094 33.5)
-
Step 900
900
#633227
oklch(37.8% 0.074 33.8)
-
Step 950
950
#3A1D17
oklch(26.9% 0.047 32.7)
#AC523F 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) | #69613D | 0.123 |
| Deuteranopia (no green cones) | #7F743D | 0.114 |
| Tritanopia (no blue cones) | #BC414E | 0.052 |
| Achromatopsia (no color) | #6D6D6D | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC523F
#AC523F
oklch(54.7% 0.122 33.3)
- #007F92
#007F92
oklch(54.8% 0.096 212.8)
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 #AC523F, 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 0.040
- Cinnamon #AC4F06 ΔE 0.042
- Dull Red #BB3F3F ΔE 0.044
- Burnt Siena #B75203 ΔE 0.046
- Earth #A2653E ΔE 0.048
- Sinopia #BB3E03 ΔE 0.051
- Brick Orange #C14A09 ΔE 0.051
Use #AC523F 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.