#AC491B
Closest named color: Cinnamon (#AC4F06). oklch(52.9% 0.142 42.4), rgb(172, 73, 27).
Aa
White text reads best on this color (5.64:1).
About this color
#AC491B is a medium-dark, vivid orange. In OKLCH its lightness is 53%, its chroma 0.142 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Cinnamon (#AC4F06), ΔE 0.019 away. White text reads best on it, at 5.64:1.
| Hue family | Oranges |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Cinnamon (#AC4F06) |
| Black text | 3.72:1 |
| White text | 5.64:1 |
Values
| HEX | #AC491B |
| RGB | rgb(172, 73, 27) |
| HSL | hsl(19, 73%, 39%) |
| OKLCH | oklch(52.9% 0.142 42.4) |
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 #AC491B | 5.64:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #AC491B | 3.72:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #AC491B text on white | 5.64:1 | AA | Lc 77.5 | Fine for body text |
| #AC491B text on black | 3.72:1 | AA large text | Lc -24.3 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EFD2C7
oklch(88.5% 0.036 41.9)
-
Step 300
300
#E5B4A0
oklch(80.9% 0.064 43.3)
-
Step 400
400
#D68B6D
oklch(70.7% 0.101 42.5)
-
Step 500
500
#CA6C45
oklch(63.2% 0.131 42.5)
-
Step 600
600 (this color)
#AC491B
oklch(52.9% 0.142 42.4)
-
Step 700
700
#9C4117
oklch(49.1% 0.132 42.2)
-
Step 800
800
#7E3616
oklch(42.6% 0.109 42.3)
-
Step 900
900
#663019
oklch(37.7% 0.085 42.6)
-
Step 950
950
#3C1D10
oklch(27.1% 0.053 42.9)
#AC491B 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) | #655913 | 0.136 |
| Deuteranopia (no green cones) | #7D7017 | 0.124 |
| Tritanopia (no blue cones) | #BD3140 | 0.070 |
| Achromatopsia (no color) | #676767 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC491B
#AC491B
oklch(52.9% 0.142 42.4)
- #007794
#007794
oklch(52.8% 0.098 222.6)
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 #AC491B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cinnamon #AC4F06 ΔE 0.019
- Sienna #A0522D ΔE 0.027
- Burnt Umber #A0450E ΔE 0.028
- Sinopia #BB3E03 ΔE 0.031
- Burnt Siena #B75203 ΔE 0.034
- Brick Orange #C14A09 ΔE 0.042
- Russet #A13905 ΔE 0.042
- Burnt Orange #C04E01 ΔE 0.043
Use #AC491B 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.