#A1583A
Closest named color: Sienna (#A0522D). oklch(54% 0.106 42.5), rgb(161, 88, 58).
Aa
White text reads best on this color (5.28:1).
About this color
#A1583A is a medium-dark, moderately saturated brown. In OKLCH its lightness is 54%, its chroma 0.106 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.017 away. White text reads best on it, at 5.28:1.
| Hue family | Browns |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.106) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #A1583A |
| RGB | rgb(161, 88, 58) |
| HSL | hsl(17, 47%, 43%) |
| OKLCH | oklch(54% 0.106 42.5) |
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 #A1583A | 5.28:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #A1583A | 3.97:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #A1583A text on white | 5.28:1 | AA | Lc 75.9 | Fine for body text |
| #A1583A text on black | 3.97:1 | AA large text | Lc -25.8 | 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
#E9D4CC
oklch(88.5% 0.026 42.1)
-
Step 300
300
#DCB7A9
oklch(80.8% 0.047 41.8)
-
Step 400
400
#CA917B
oklch(70.7% 0.076 42)
-
Step 500
500
#BB7559
oklch(63.1% 0.097 42.4)
-
Step 600
600 (this color)
#A1583A
oklch(54% 0.106 42.5)
-
Step 700
700
#8E4C31
oklch(49.1% 0.098 42.4)
-
Step 800
800
#743F29
oklch(42.8% 0.081 42.8)
-
Step 900
900
#5E3625
oklch(37.8% 0.064 43.5)
-
Step 950
950
#372016
oklch(27.1% 0.04 44.1)
#A1583A 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) | #6B6237 | 0.098 |
| Deuteranopia (no green cones) | #7D7239 | 0.090 |
| Tritanopia (no blue cones) | #B04A51 | 0.057 |
| Achromatopsia (no color) | #6C6C6C | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1583A
#A1583A
oklch(54% 0.106 42.5)
- #007B99
#007B99
oklch(54.1% 0.1 222.7)
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 #A1583A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.017
- Sepia #985E2B ΔE 0.031
- Earth #A2653E ΔE 0.032
- Cinnamon #AC4F06 ΔE 0.038
- Raw Umber #A75E09 ΔE 0.044
- Cocoa #875F42 ΔE 0.048
- Burnt Umber #A0450E ΔE 0.048
- Warm Brown #964E02 ΔE 0.049
Use #A1583A 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.