#A4573D
Closest named color: Sienna (#A0522D). oklch(54.3% 0.109 39.2), rgb(164, 87, 61).
Aa
White text reads best on this color (5.23:1).
About this color
#A4573D is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.109 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.020 away. White text reads best on it, at 5.23:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.109) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.00:1 |
| White text | 5.23:1 |
Values
| HEX | #A4573D |
| RGB | rgb(164, 87, 61) |
| HSL | hsl(15, 46%, 44%) |
| OKLCH | oklch(54.3% 0.109 39.2) |
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 #A4573D | 5.23:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #A4573D | 4.00:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #A4573D text on white | 5.23:1 | AA | Lc 75.6 | Fine for body text |
| #A4573D 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
#EAD4CC
oklch(88.6% 0.027 41.1)
-
Step 300
300
#DEB7AA
oklch(81% 0.049 39.3)
-
Step 400
400
#CC907C
oklch(70.7% 0.079 39.2)
-
Step 500
500
#BD745B
oklch(63.2% 0.1 39.6)
-
Step 600
600 (this color)
#A4573D
oklch(54.3% 0.109 39.2)
-
Step 700
700
#904A33
oklch(49% 0.101 38.8)
-
Step 800
800
#753D2A
oklch(42.6% 0.084 39.3)
-
Step 900
900
#5F3527
oklch(37.8% 0.065 39.1)
-
Step 950
950
#381F17
oklch(27% 0.042 38.5)
#A4573D 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) | #6B623B | 0.104 |
| Deuteranopia (no green cones) | #7E733C | 0.096 |
| Tritanopia (no blue cones) | #B34951 | 0.053 |
| Achromatopsia (no color) | #6C6C6C | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4573D
#A4573D
oklch(54.3% 0.109 39.2)
- #007C96
#007C96
oklch(54.2% 0.098 219.3)
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 #A4573D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.020
- Earth #A2653E ΔE 0.035
- Sepia #985E2B ΔE 0.038
- Cinnamon #AC4F06 ΔE 0.039
- Raw Umber #A75E09 ΔE 0.048
- Burnt Siena #B75203 ΔE 0.048
- Burnt Umber #A0450E ΔE 0.050
- Cocoa #875F42 ΔE 0.054
Use #A4573D 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.