#AA521D
Closest named color: Cinnamon (#AC4F06). oklch(54% 0.132 47.5), rgb(170, 82, 29).
Aa
White text reads best on this color (5.33:1).
About this color
#AA521D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 54%, its chroma 0.132 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Cinnamon (#AC4F06), ΔE 0.011 away. White text reads best on it, at 5.33:1.
| Hue family | Browns |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Cinnamon (#AC4F06) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #AA521D |
| RGB | rgb(170, 82, 29) |
| HSL | hsl(23, 71%, 39%) |
| OKLCH | oklch(54% 0.132 47.5) |
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 #AA521D | 5.33:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #AA521D | 3.93:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #AA521D text on white | 5.33:1 | AA | Lc 76.0 | Fine for body text |
| #AA521D text on black | 3.93:1 | AA large text | Lc -25.7 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#ECD3C7
oklch(88.4% 0.032 47.3)
-
Step 300
300
#E2B6A0
oklch(81% 0.06 48)
-
Step 400
400
#D28E6C
oklch(70.7% 0.096 47.3)
-
Step 500
500
#C47044
oklch(63% 0.122 47.2)
-
Step 600
600 (this color)
#AA521D
oklch(54% 0.132 47.5)
-
Step 700
700
#974615
oklch(49.1% 0.123 47.1)
-
Step 800
800
#7A3A15
oklch(42.6% 0.102 47.2)
-
Step 900
900
#633319
oklch(37.8% 0.079 47.4)
-
Step 950
950
#3A1E0F
oklch(27% 0.05 47.8)
#AA521D 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) | #6B5F15 | 0.119 |
| Deuteranopia (no green cones) | #80731B | 0.109 |
| Tritanopia (no blue cones) | #BB3E48 | 0.076 |
| Achromatopsia (no color) | #6B6B6B | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA521D
#AA521D
oklch(54% 0.132 47.5)
- #007A9E
#007A9E
oklch(54.1% 0.105 227.3)
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 #AA521D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cinnamon #AC4F06 ΔE 0.011
- Sienna #A0522D ΔE 0.022
- Burnt Siena #B75203 ΔE 0.026
- Raw Umber #A75E09 ΔE 0.033
- Burnt Umber #A0450E ΔE 0.037
- Sepia #985E2B ΔE 0.039
- Burnt Orange #C04E01 ΔE 0.041
- Orangey Brown #B16002 ΔE 0.041
Use #AA521D 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.