#A3584A
Closest named color: Sienna (#A0522D). oklch(54.6% 0.102 31.7), rgb(163, 88, 74).
Aa
White text reads best on this color (5.18:1).
About this color
#A3584A is a medium-dark, moderately saturated red. In OKLCH its lightness is 55%, its chroma 0.102 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.034 away. White text reads best on it, at 5.18:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #A3584A |
| RGB | rgb(163, 88, 74) |
| HSL | hsl(9, 38%, 46%) |
| OKLCH | oklch(54.6% 0.102 31.7) |
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 #A3584A | 5.18:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #A3584A | 4.05:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #A3584A text on white | 5.18:1 | AA | Lc 75.4 | Fine for body text |
| #A3584A text on black | 4.05:1 | AA large text | Lc -26.4 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F3E7E4
oklch(93.7% 0.014 34.3)
-
Step 200
200
#E9D3CF
oklch(88.4% 0.025 29.9)
-
Step 300
300
#DDB6AF
oklch(80.9% 0.046 30)
-
Step 400
400
#CA9084
oklch(70.7% 0.073 32)
-
Step 500
500
#BB7466
oklch(63.2% 0.093 31.8)
-
Step 600
600 (this color)
#A3584A
oklch(54.6% 0.102 31.7)
-
Step 700
700
#8E4A3E
oklch(49% 0.095 31.2)
-
Step 800
800
#743D33
oklch(42.6% 0.079 31.4)
-
Step 900
900
#5E352D
oklch(37.8% 0.061 31.9)
-
Step 950
950
#371F1A
oklch(26.9% 0.039 32.5)
#A3584A 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) | #6A6349 | 0.102 |
| Deuteranopia (no green cones) | #7C7349 | 0.095 |
| Tritanopia (no blue cones) | #B14C55 | 0.042 |
| Achromatopsia (no color) | #6D6D6D | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3584A
#A3584A
oklch(54.6% 0.102 31.7)
- #007E90
#007E90
oklch(54.4% 0.095 212.1)
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 #A3584A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.034
- Earth #A2653E ΔE 0.041
- Light Maroon #A24857 ΔE 0.048
- Sepia #985E2B ΔE 0.049
- Dusty Red #B9484E ΔE 0.052
- Cinnamon #AC4F06 ΔE 0.054
- Cocoa #875F42 ΔE 0.056
- Dark Rose #B5485D ΔE 0.059
Use #A3584A 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.