#A55640
Closest named color: Sienna (#A0522D). oklch(54.3% 0.11 36.5), rgb(165, 86, 64).
Aa
White text reads best on this color (5.24:1).
About this color
#A55640 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.110 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.024 away. White text reads best on it, at 5.24:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #A55640 |
| RGB | rgb(165, 86, 64) |
| HSL | hsl(13, 44%, 45%) |
| OKLCH | oklch(54.3% 0.11 36.5) |
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 #A55640 | 5.24:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #A55640 | 4.00:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #A55640 text on white | 5.24:1 | AA | Lc 75.7 | Fine for body text |
| #A55640 text on black | 4.00:1 | AA large text | Lc -26.1 | 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
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EAD3CD
oklch(88.4% 0.027 35)
-
Step 300
300
#DEB6AB
oklch(80.9% 0.049 35.9)
-
Step 400
400
#CC8F7E
oklch(70.6% 0.079 36.2)
-
Step 500
500
#BE735D
oklch(63.2% 0.101 37.1)
-
Step 600
600 (this color)
#A55640
oklch(54.3% 0.11 36.5)
-
Step 700
700
#914935
oklch(49.1% 0.102 36.4)
-
Step 800
800
#763D2D
oklch(42.8% 0.084 36.6)
-
Step 900
900
#5F3428
oklch(37.6% 0.066 36.4)
-
Step 950
950
#381F18
oklch(27% 0.041 36.4)
#A55640 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) | #6A623E | 0.107 |
| Deuteranopia (no green cones) | #7D733F | 0.100 |
| Tritanopia (no blue cones) | #B44851 | 0.051 |
| Achromatopsia (no color) | #6C6C6C | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A55640
#A55640
oklch(54.3% 0.11 36.5)
- #007D94
#007D94
oklch(54.4% 0.097 216.6)
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 #A55640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.024
- Earth #A2653E ΔE 0.039
- Cinnamon #AC4F06 ΔE 0.042
- Sepia #985E2B ΔE 0.043
- Burnt Siena #B75203 ΔE 0.051
- Burnt Umber #A0450E ΔE 0.051
- Dusty Red #B9484E ΔE 0.053
- Raw Umber #A75E09 ΔE 0.053
Use #A55640 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.