#A55540
Closest named color: Sienna (#A0522D). oklch(54.1% 0.111 35.7), rgb(165, 85, 64).
Aa
White text reads best on this color (5.28:1).
About this color
#A55540 is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.111 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.023 away. White text reads best on it, at 5.28:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.111) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #A55540 |
| RGB | rgb(165, 85, 64) |
| HSL | hsl(12, 44%, 45%) |
| OKLCH | oklch(54.1% 0.111 35.7) |
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 #A55540 | 5.28:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #A55540 | 3.97:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #A55540 text on white | 5.28:1 | AA | Lc 75.9 | Fine for body text |
| #A55540 text on black | 3.97:1 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#DFB6AB
oklch(81% 0.05 35.5)
-
Step 400
400
#CD8F7E
oklch(70.7% 0.08 36)
-
Step 500
500
#BF725E
oklch(63.1% 0.102 35.4)
-
Step 600
600 (this color)
#A55540
oklch(54.1% 0.111 35.7)
-
Step 700
700
#914936
oklch(49.1% 0.102 35.8)
-
Step 800
800
#763C2D
oklch(42.6% 0.085 35.5)
-
Step 900
900
#603428
oklch(37.8% 0.067 36.1)
-
Step 950
950
#381F18
oklch(27% 0.041 36.4)
#A55540 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) | #69613E | 0.109 |
| Deuteranopia (no green cones) | #7D723F | 0.100 |
| Tritanopia (no blue cones) | #B44750 | 0.049 |
| Achromatopsia (no color) | #6C6C6C | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A55540
#A55540
oklch(54.1% 0.111 35.7)
- #007C92
#007C92
oklch(54% 0.096 215.9)
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 #A55540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.023
- Earth #A2653E ΔE 0.041
- Cinnamon #AC4F06 ΔE 0.043
- Sepia #985E2B ΔE 0.044
- Burnt Umber #A0450E ΔE 0.050
- Burnt Siena #B75203 ΔE 0.051
- Dusty Red #B9484E ΔE 0.051
- Light Maroon #A24857 ΔE 0.052
Use #A55540 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.