#AC4243
Closest named color: Dull Red (#BB3F3F). oklch(52.4% 0.139 22.7), rgb(172, 66, 67).
Aa
White text reads best on this color (5.80:1).
About this color
#AC4243 is a medium-dark, moderately saturated red. In OKLCH its lightness is 52%, its chroma 0.139 and its hue 23°. 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 5.80:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.139) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.61:1 |
| White text | 5.80:1 |
Values
| HEX | #AC4243 |
| RGB | rgb(172, 66, 67) |
| HSL | hsl(359, 45%, 47%) |
| OKLCH | oklch(52.4% 0.139 22.7) |
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 #AC4243 | 5.80:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #AC4243 | 3.61:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #AC4243 text on white | 5.80:1 | AA | Lc 78.3 | Fine for body text |
| #AC4243 text on black | 3.61:1 | AA large text | Lc -23.5 | 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
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D1CF
oklch(88.6% 0.035 22.2)
-
Step 300
300
#E7B1AE
oklch(80.9% 0.063 22.2)
-
Step 400
400
#D88783
oklch(70.7% 0.1 23)
-
Step 500
500
#CB6765
oklch(63.1% 0.127 22.5)
-
Step 600
600 (this color)
#AC4243
oklch(52.4% 0.139 22.7)
-
Step 700
700
#9D3C3D
oklch(49.1% 0.13 22.6)
-
Step 800
800
#803232
oklch(42.7% 0.109 22.8)
-
Step 900
900
#672D2C
oklch(37.7% 0.084 22.9)
-
Step 950
950
#3D1B1A
oklch(27.1% 0.054 23)
#AC4243 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) | #5D5742 | 0.149 |
| Deuteranopia (no green cones) | #776E40 | 0.139 |
| Tritanopia (no blue cones) | #BC2D43 | 0.041 |
| Achromatopsia (no color) | #656565 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC4243
#AC4243
oklch(52.4% 0.139 22.7)
- #007981
#007981
oklch(52.5% 0.089 202.9)
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 #AC4243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.029
- Light Maroon #A24857 ΔE 0.031
- Dusty Red #B9484E ΔE 0.032
- Light Burgundy #A8415B ΔE 0.036
- Dark Rose #B5485D ΔE 0.040
- Brick #A03623 ΔE 0.047
- Brown #A52A2A ΔE 0.049
- Rusty Red #AF2F0D ΔE 0.050
Use #AC4243 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.