#AA5939
Closest named color: Sienna (#A0522D). oklch(55.4% 0.116 41.7), rgb(170, 89, 57).
Aa
White text reads best on this color (5.00:1).
About this color
#AA5939 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 55%, its chroma 0.116 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.028 away. White text reads best on it, at 5.00:1.
| Hue family | Browns |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #AA5939 |
| RGB | rgb(170, 89, 57) |
| HSL | hsl(17, 50%, 45%) |
| OKLCH | oklch(55.4% 0.116 41.7) |
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 #AA5939 | 5.00:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #AA5939 | 4.19:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #AA5939 text on white | 5.00:1 | AA | Lc 74.2 | Content text, not long reading |
| #AA5939 text on black | 4.19:1 | 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
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EBD3CB
oklch(88.4% 0.029 39.3)
-
Step 300
300
#DFB6A7
oklch(80.9% 0.052 41.1)
-
Step 400
400
#CE8F78
oklch(70.7% 0.084 40.9)
-
Step 500
500
#BF7355
oklch(63.2% 0.106 42.1)
-
Step 600
600 (this color)
#AA5939
oklch(55.4% 0.116 41.7)
-
Step 700
700
#92492C
oklch(49.1% 0.107 41.6)
-
Step 800
800
#773C25
oklch(42.7% 0.09 41.4)
-
Step 900
900
#603423
oklch(37.7% 0.069 41.6)
-
Step 950
950
#381F15
oklch(27% 0.043 42.4)
#AA5939 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) | #6F6436 | 0.107 |
| Deuteranopia (no green cones) | #827638 | 0.099 |
| Tritanopia (no blue cones) | #BA4952 | 0.061 |
| Achromatopsia (no color) | #6F6F6F | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA5939
#AA5939
oklch(55.4% 0.116 41.7)
- #007F9D
#007F9D
oklch(55.3% 0.102 222)
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 #AA5939, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.028
- Earth #A2653E ΔE 0.030
- Cinnamon #AC4F06 ΔE 0.035
- Burnt Siena #B75203 ΔE 0.038
- Sepia #985E2B ΔE 0.040
- Raw Umber #A75E09 ΔE 0.041
- Copper #B66325 ΔE 0.042
- Orangey Brown #B16002 ΔE 0.045
Use #AA5939 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.