#AC583C
Closest named color: Sienna (#A0522D). oklch(55.6% 0.118 39), rgb(172, 88, 60).
Aa
White text reads best on this color (4.98:1).
About this color
#AC583C is a medium-dark, moderately saturated red. In OKLCH its lightness is 56%, its chroma 0.118 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.032 away. White text reads best on it, at 4.98:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #AC583C |
| RGB | rgb(172, 88, 60) |
| HSL | hsl(15, 48%, 45%) |
| OKLCH | oklch(55.6% 0.118 39) |
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 #AC583C | 4.98:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #AC583C | 4.21:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #AC583C text on white | 4.98:1 | AA | Lc 74.0 | Content text, not long reading |
| #AC583C text on black | 4.21:1 | AA large text | Lc -27.7 | 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
#F4E7E2
oklch(93.7% 0.016 42.4)
-
Step 200
200
#EBD3CB
oklch(88.4% 0.029 39.3)
-
Step 300
300
#E0B6A8
oklch(81% 0.053 39.3)
-
Step 400
400
#CF8E79
oklch(70.6% 0.085 38.7)
-
Step 500
500
#C17157
oklch(63.1% 0.109 38.7)
-
Step 600
600 (this color)
#AC583C
oklch(55.6% 0.118 39)
-
Step 700
700
#94482E
oklch(49.2% 0.11 39.3)
-
Step 800
800
#783B27
oklch(42.7% 0.091 38.7)
-
Step 900
900
#613324
oklch(37.6% 0.071 38.8)
-
Step 950
950
#391E16
oklch(26.9% 0.045 37.3)
#AC583C 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) | #6E6439 | 0.113 |
| Deuteranopia (no green cones) | #83773B | 0.104 |
| Tritanopia (no blue cones) | #BC4851 | 0.057 |
| Achromatopsia (no color) | #707070 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC583C
#AC583C
oklch(55.6% 0.118 39)
- #00809B
#00809B
oklch(55.5% 0.101 219.5)
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 #AC583C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.032
- Earth #A2653E ΔE 0.034
- Cinnamon #AC4F06 ΔE 0.038
- Burnt Siena #B75203 ΔE 0.039
- Copper #B66325 ΔE 0.044
- Sepia #985E2B ΔE 0.046
- Raw Umber #A75E09 ΔE 0.046
- Burnt Orange #C04E01 ΔE 0.048
Use #AC583C 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.