#A7543C
Closest named color: Sienna (#A0522D). oklch(54.2% 0.116 37), rgb(167, 84, 60).
Aa
White text reads best on this color (5.28:1).
About this color
#A7543C is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.116 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.022 away. White text reads best on it, at 5.28:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #A7543C |
| RGB | rgb(167, 84, 60) |
| HSL | hsl(13, 47%, 45%) |
| OKLCH | oklch(54.2% 0.116 37) |
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 #A7543C | 5.28:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #A7543C | 3.97:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #A7543C text on white | 5.28:1 | AA | Lc 75.8 | Fine for body text |
| #A7543C 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
#F4E7E3
oklch(93.7% 0.015 37.9)
-
Step 200
200
#EBD3CC
oklch(88.5% 0.029 36.9)
-
Step 300
300
#E0B6A9
oklch(81% 0.052 37.9)
-
Step 400
400
#CE8E7C
oklch(70.6% 0.083 36.4)
-
Step 500
500
#C0715A
oklch(63% 0.106 37)
-
Step 600
600 (this color)
#A7543C
oklch(54.2% 0.116 37)
-
Step 700
700
#934832
oklch(49.1% 0.107 37.2)
-
Step 800
800
#783B2A
oklch(42.7% 0.09 36.5)
-
Step 900
900
#613326
oklch(37.7% 0.07 36.6)
-
Step 950
950
#391E17
oklch(27% 0.044 35.4)
#A7543C 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) | #6A613A | 0.112 |
| Deuteranopia (no green cones) | #7E733A | 0.105 |
| Tritanopia (no blue cones) | #B6454E | 0.052 |
| Achromatopsia (no color) | #6C6C6C | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A7543C
#A7543C
oklch(54.2% 0.116 37)
- #007C94
#007C94
oklch(54.1% 0.097 217.6)
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 #A7543C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.022
- Cinnamon #AC4F06 ΔE 0.038
- Earth #A2653E ΔE 0.041
- Sepia #985E2B ΔE 0.045
- Burnt Siena #B75203 ΔE 0.046
- Burnt Umber #A0450E ΔE 0.048
- Dusty Red #B9484E ΔE 0.051
- Raw Umber #A75E09 ΔE 0.052
Use #A7543C 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.