#AA4E27
Closest named color: Sienna (#A0522D). oklch(53.4% 0.132 42), rgb(170, 78, 39).
Aa
White text reads best on this color (5.48:1).
About this color
#AA4E27 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 53%, its chroma 0.132 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.019 away. White text reads best on it, at 5.48:1.
| Hue family | Browns |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #AA4E27 |
| RGB | rgb(170, 78, 39) |
| HSL | hsl(18, 63%, 41%) |
| OKLCH | oklch(53.4% 0.132 42) |
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 #AA4E27 | 5.48:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #AA4E27 | 3.82:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #AA4E27 text on white | 5.48:1 | AA | Lc 76.8 | Fine for body text |
| #AA4E27 text on black | 3.82:1 | AA large text | Lc -24.9 | 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
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EDD3C8
oklch(88.5% 0.033 44.3)
-
Step 300
300
#E3B5A3
oklch(81% 0.059 42.4)
-
Step 400
400
#D38D71
oklch(70.7% 0.095 42.6)
-
Step 500
500
#C66E4C
oklch(63.1% 0.122 41.5)
-
Step 600
600 (this color)
#AA4E27
oklch(53.4% 0.132 42)
-
Step 700
700
#984421
oklch(49% 0.123 41.6)
-
Step 800
800
#7C391D
oklch(42.8% 0.102 42)
-
Step 900
900
#64321D
oklch(37.8% 0.079 42.7)
-
Step 950
950
#3B1D12
oklch(27% 0.051 40.6)
#AA4E27 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) | #685C22 | 0.124 |
| Deuteranopia (no green cones) | #7E7125 | 0.115 |
| Tritanopia (no blue cones) | #BB3A46 | 0.066 |
| Achromatopsia (no color) | #696969 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA4E27
#AA4E27
oklch(53.4% 0.132 42)
- #007996
#007996
oklch(53.4% 0.099 222.2)
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 #AA4E27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.019
- Cinnamon #AC4F06 ΔE 0.020
- Burnt Umber #A0450E ΔE 0.032
- Burnt Siena #B75203 ΔE 0.034
- Sinopia #BB3E03 ΔE 0.039
- Brick Orange #C14A09 ΔE 0.044
- Burnt Orange #C04E01 ΔE 0.045
- Raw Umber #A75E09 ΔE 0.046
Use #AA4E27 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.