#A3564B
Closest named color: Sienna (#A0522D). oklch(54.2% 0.104 29.4), rgb(163, 86, 75).
Aa
White text reads best on this color (5.26:1).
About this color
#A3564B is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.104 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.035 away. White text reads best on it, at 5.26:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.104) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.99:1 |
| White text | 5.26:1 |
Values
| HEX | #A3564B |
| RGB | rgb(163, 86, 75) |
| HSL | hsl(8, 37%, 47%) |
| OKLCH | oklch(54.2% 0.104 29.4) |
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 #A3564B | 5.26:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #A3564B | 3.99:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #A3564B text on white | 5.26:1 | AA | Lc 75.8 | Fine for body text |
| #A3564B text on black | 3.99:1 | AA large text | Lc -25.9 | 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
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F3E7E5
oklch(93.7% 0.013 28.9)
-
Step 200
200
#EAD3CF
oklch(88.5% 0.026 29.4)
-
Step 300
300
#DDB6AF
oklch(80.9% 0.046 30)
-
Step 400
400
#CB8F86
oklch(70.7% 0.075 28.6)
-
Step 500
500
#BC7367
oklch(63.1% 0.095 30)
-
Step 600
600 (this color)
#A3564B
oklch(54.2% 0.104 29.4)
-
Step 700
700
#8F4A40
oklch(49.1% 0.095 29.5)
-
Step 800
800
#753D35
oklch(42.8% 0.08 29.3)
-
Step 900
900
#5E342E
oklch(37.6% 0.062 29)
-
Step 950
950
#371F1B
oklch(27% 0.039 30)
#A3564B 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) | #68624A | 0.106 |
| Deuteranopia (no green cones) | #7B724A | 0.098 |
| Tritanopia (no blue cones) | #B14A53 | 0.040 |
| Achromatopsia (no color) | #6C6C6C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3564B
#A3564B
oklch(54.2% 0.104 29.4)
- #007E8D
#007E8D
oklch(54.3% 0.094 209.3)
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 #A3564B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.035
- Light Maroon #A24857 ΔE 0.043
- Earth #A2653E ΔE 0.046
- Dusty Red #B9484E ΔE 0.049
- Sepia #985E2B ΔE 0.053
- Dark Rose #B5485D ΔE 0.055
- Cinnamon #AC4F06 ΔE 0.056
- Dull Red #BB3F3F ΔE 0.057
Use #A3564B 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.