#AC4543
Closest named color: Dull Red (#BB3F3F). oklch(52.8% 0.136 24), rgb(172, 69, 67).
Aa
White text reads best on this color (5.69:1).
About this color
#AC4543 is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.136 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.029 away. White text reads best on it, at 5.69:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.136) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #AC4543 |
| RGB | rgb(172, 69, 67) |
| HSL | hsl(1, 44%, 47%) |
| OKLCH | oklch(52.8% 0.136 24) |
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 #AC4543 | 5.69:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #AC4543 | 3.68:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #AC4543 text on white | 5.69:1 | AA | Lc 77.8 | Fine for body text |
| #AC4543 text on black | 3.68:1 | AA large text | Lc -24.0 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E6E4
oklch(93.7% 0.018 26.1)
-
Step 200
200
#EFD1CE
oklch(88.5% 0.034 24.6)
-
Step 300
300
#E6B2AD
oklch(80.9% 0.061 24.8)
-
Step 400
400
#D78883
oklch(70.7% 0.098 23.8)
-
Step 500
500
#CA6864
oklch(63.1% 0.125 23.7)
-
Step 600
600 (this color)
#AC4543
oklch(52.8% 0.136 24)
-
Step 700
700
#9C3E3C
oklch(49.2% 0.126 24.1)
-
Step 800
800
#7F3432
oklch(42.8% 0.105 24)
-
Step 900
900
#662E2C
oklch(37.7% 0.081 23.8)
-
Step 950
950
#3C1B1A
oklch(26.9% 0.052 22.9)
#AC4543 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) | #5F5942 | 0.145 |
| Deuteranopia (no green cones) | #796F40 | 0.134 |
| Tritanopia (no blue cones) | #BC3245 | 0.041 |
| Achromatopsia (no color) | #676767 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4543
#AC4543
oklch(52.8% 0.136 24)
- #007A83
#007A83
oklch(52.8% 0.09 203.8)
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 #AC4543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.029
- Dusty Red #B9484E ΔE 0.030
- Light Maroon #A24857 ΔE 0.032
- Light Burgundy #A8415B ΔE 0.039
- Dark Rose #B5485D ΔE 0.040
- Sienna #A0522D ΔE 0.049
- Brick #A03623 ΔE 0.049
- Rusty Red #AF2F0D ΔE 0.051
Use #AC4543 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.