#AC2F43
Closest named color: Rouge (#AB1239). oklch(50.2% 0.16 16.2), rgb(172, 47, 67).
Aa
White text reads best on this color (6.47:1).
About this color
#AC2F43 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.160 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.033 away. White text reads best on it, at 6.47:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #AC2F43 |
| RGB | rgb(172, 47, 67) |
| HSL | hsl(350, 57%, 43%) |
| OKLCH | oklch(50.2% 0.16 16.2) |
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 #AC2F43 | 6.47:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #AC2F43 | 3.24:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #AC2F43 text on white | 6.47:1 | AA | Lc 81.0 | Fine for body text |
| #AC2F43 text on black | 3.24:1 | AA large text | Lc -20.9 | 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 700.
-
Step 50
50
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F9E4E5
oklch(93.6% 0.023 14.3)
-
Step 200
200
#F4CECF
oklch(88.4% 0.043 16.2)
-
Step 300
300
#EFADAF
oklch(81% 0.078 16.9)
-
Step 400
400
#E37E86
oklch(70.6% 0.125 15.7)
-
Step 500
500
#D85A68
oklch(63.2% 0.158 16.1)
-
Step 600
600
#C33A4F
oklch(55.5% 0.173 16.2)
-
Step 700
700 (this color)
#AC2F43
oklch(50.2% 0.16 16.2)
-
Step 800
800
#892635
oklch(42.8% 0.133 16.3)
-
Step 900
900
#6E252E
oklch(37.7% 0.104 16.3)
-
Step 950
950
#41171B
oklch(27.1% 0.065 16.8)
#AC2F43 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) | #504D43 | 0.178 |
| Deuteranopia (no green cones) | #706840 | 0.163 |
| Tritanopia (no blue cones) | #BC0837 | 0.040 |
| Achromatopsia (no color) | #5E5E5E | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC2F43
#AC2F43
oklch(50.2% 0.16 16.2)
- #007374
#007374
oklch(50.3% 0.086 195.8)
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 #AC2F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.033
- Brown #A52A2A ΔE 0.034
- Firebrick #B22222 ΔE 0.037
- Light Burgundy #A8415B ΔE 0.038
- Rose Red #BE013C ΔE 0.043
- Raspberry #B00149 ΔE 0.045
- Light Maroon #A24857 ΔE 0.046
- Lipstick Red #C0022F ΔE 0.047
Use #AC2F43 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.