#AC4E2E
Closest named color: Sienna (#A0522D). oklch(53.8% 0.132 39), rgb(172, 78, 46).
Aa
White text reads best on this color (5.40:1).
About this color
#AC4E2E is a medium-dark, moderately saturated red. In OKLCH its lightness is 54%, its chroma 0.132 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.024 away. White text reads best on it, at 5.40:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #AC4E2E |
| RGB | rgb(172, 78, 46) |
| HSL | hsl(15, 58%, 43%) |
| OKLCH | oklch(53.8% 0.132 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 #AC4E2E | 5.40:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #AC4E2E | 3.88:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #AC4E2E text on white | 5.40:1 | AA | Lc 76.4 | Fine for body text |
| #AC4E2E text on black | 3.88:1 | AA large text | Lc -25.4 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EED2C9
oklch(88.5% 0.034 38.6)
-
Step 300
300
#E3B4A5
oklch(80.8% 0.059 38.4)
-
Step 400
400
#D48C74
oklch(70.7% 0.095 39.2)
-
Step 500
500
#C76D50
oklch(63.1% 0.122 38.6)
-
Step 600
600 (this color)
#AC4E2E
oklch(53.8% 0.132 39)
-
Step 700
700
#994326
oklch(49.1% 0.123 38.7)
-
Step 800
800
#7C3821
oklch(42.7% 0.101 39)
-
Step 900
900
#643120
oklch(37.7% 0.079 39)
-
Step 950
950
#3B1D13
oklch(27% 0.05 39.1)
#AC4E2E 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) | #685D2A | 0.128 |
| Deuteranopia (no green cones) | #7F722C | 0.117 |
| Tritanopia (no blue cones) | #BD3A47 | 0.062 |
| Achromatopsia (no color) | #6A6A6A | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4E2E
#AC4E2E
oklch(53.8% 0.132 39)
- #007B94
#007B94
oklch(53.8% 0.097 218.6)
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 #AC4E2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.024
- Cinnamon #AC4F06 ΔE 0.026
- Burnt Siena #B75203 ΔE 0.036
- Burnt Umber #A0450E ΔE 0.038
- Sinopia #BB3E03 ΔE 0.038
- Brick Orange #C14A09 ΔE 0.043
- Burnt Orange #C04E01 ΔE 0.044
- Dull Red #BB3F3F ΔE 0.047
Use #AC4E2E 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.