#A1583F
Closest named color: Sienna (#A0522D). oklch(54.1% 0.103 39.5), rgb(161, 88, 63).
Aa
White text reads best on this color (5.27:1).
About this color
#A1583F is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.103 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.021 away. White text reads best on it, at 5.27:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #A1583F |
| RGB | rgb(161, 88, 63) |
| HSL | hsl(15, 44%, 44%) |
| OKLCH | oklch(54.1% 0.103 39.5) |
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 #A1583F | 5.27:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #A1583F | 3.98:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #A1583F text on white | 5.27:1 | AA | Lc 75.9 | Fine for body text |
| #A1583F text on black | 3.98:1 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E3
oklch(93.6% 0.013 41.2)
-
Step 200
200
#E9D4CD
oklch(88.5% 0.025 39.4)
-
Step 300
300
#DCB7AB
oklch(80.9% 0.046 38.8)
-
Step 400
400
#CA917E
oklch(70.7% 0.075 39.2)
-
Step 500
500
#BB755D
oklch(63.1% 0.095 39.7)
-
Step 600
600 (this color)
#A1583F
oklch(54.1% 0.103 39.5)
-
Step 700
700
#8E4C35
oklch(49.1% 0.096 39.8)
-
Step 800
800
#733E2C
oklch(42.5% 0.08 39.4)
-
Step 900
900
#5E3628
oklch(37.9% 0.062 40)
-
Step 950
950
#372018
oklch(27.1% 0.039 39.9)
#A1583F 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) | #6B623D | 0.098 |
| Deuteranopia (no green cones) | #7D723E | 0.090 |
| Tritanopia (no blue cones) | #AF4B52 | 0.051 |
| Achromatopsia (no color) | #6C6C6C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1583F
#A1583F
oklch(54.1% 0.103 39.5)
- #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 #A1583F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.021
- Earth #A2653E ΔE 0.034
- Sepia #985E2B ΔE 0.035
- Cinnamon #AC4F06 ΔE 0.043
- Cocoa #875F42 ΔE 0.048
- Raw Umber #A75E09 ΔE 0.050
- Burnt Umber #A0450E ΔE 0.051
- Burnt Siena #B75203 ΔE 0.053
Use #A1583F 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.