#AA4631
Closest named color: Sienna (#A0522D). oklch(52.4% 0.136 33.5), rgb(170, 70, 49).
Aa
White text reads best on this color (5.78:1).
About this color
#AA4631 is a medium-dark, moderately saturated red. In OKLCH its lightness is 52%, its chroma 0.136 and its hue 34°. 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 5.78:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.136) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.62:1 |
| White text | 5.78:1 |
Values
| HEX | #AA4631 |
| RGB | rgb(170, 70, 49) |
| HSL | hsl(10, 55%, 43%) |
| OKLCH | oklch(52.4% 0.136 33.5) |
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 #AA4631 | 5.78:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #AA4631 | 3.62:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #AA4631 text on white | 5.78:1 | AA | Lc 78.3 | Fine for body text |
| #AA4631 text on black | 3.62:1 | AA large text | Lc -23.5 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EFD2CB
oklch(88.6% 0.034 33.8)
-
Step 300
300
#E5B3A7
oklch(80.9% 0.061 33.8)
-
Step 400
400
#D68A78
oklch(70.7% 0.097 34)
-
Step 500
500
#CA6A56
oklch(63.1% 0.126 33)
-
Step 600
600 (this color)
#AA4631
oklch(52.4% 0.136 33.5)
-
Step 700
700
#9B402D
oklch(49.1% 0.126 33.4)
-
Step 800
800
#7E3526
oklch(42.6% 0.105 33.2)
-
Step 900
900
#662F23
oklch(37.7% 0.082 33.6)
-
Step 950
950
#3C1C15
oklch(27% 0.052 33.4)
#AA4631 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) | #61582E | 0.139 |
| Deuteranopia (no green cones) | #7A6E2E | 0.128 |
| Tritanopia (no blue cones) | #BB3041 | 0.055 |
| Achromatopsia (no color) | #656565 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA4631
#AA4631
oklch(52.4% 0.136 33.5)
- #00778A
#00778A
oklch(52.3% 0.092 213.9)
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 #AA4631, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.032
- Burnt Umber #A0450E ΔE 0.035
- Dull Red #BB3F3F ΔE 0.040
- Sinopia #BB3E03 ΔE 0.040
- Rusty Red #AF2F0D ΔE 0.040
- Brick #A03623 ΔE 0.040
- Cinnamon #AC4F06 ΔE 0.040
- Russet #A13905 ΔE 0.042
Use #AA4631 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.