#AC2148
Closest named color: Rouge (#AB1239). oklch(49.1% 0.174 10.9), rgb(172, 33, 72).
Aa
White text reads best on this color (6.85:1).
About this color
#AC2148 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.174 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.022 away. White text reads best on it, at 6.85:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.06:1 |
| White text | 6.85:1 |
Values
| HEX | #AC2148 |
| RGB | rgb(172, 33, 72) |
| HSL | hsl(343, 68%, 40%) |
| OKLCH | oklch(49.1% 0.174 10.9) |
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 #AC2148 | 6.85:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #AC2148 | 3.06:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #AC2148 text on white | 6.85:1 | AA | Lc 82.1 | Fine for body text |
| #AC2148 text on black | 3.06:1 | AA large text | Lc -19.8 | 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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E6
oklch(93.7% 0.024 11.3)
-
Step 200
200
#F6CDD1
oklch(88.4% 0.047 11.4)
-
Step 300
300
#F1AAB3
oklch(80.8% 0.084 10.7)
-
Step 400
400
#E77A8C
oklch(70.7% 0.135 10.7)
-
Step 500
500
#DC5370
oklch(63.1% 0.172 10.7)
-
Step 600
600
#C73158
oklch(55.6% 0.186 10.9)
-
Step 700
700 (this color)
#AC2148
oklch(49.1% 0.174 10.9)
-
Step 800
800
#8C1F3B
oklch(42.8% 0.144 11.2)
-
Step 900
900
#702133
oklch(37.7% 0.111 10.7)
-
Step 950
950
#42151E
oklch(27% 0.07 10.9)
#AC2148 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) | #484849 | 0.195 |
| Deuteranopia (no green cones) | #6C6544 | 0.178 |
| Tritanopia (no blue cones) | #BC0032 | 0.041 |
| Achromatopsia (no color) | #5A5A5A | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC2148
#AC2148
oklch(49.1% 0.174 10.9)
- #00706C
#00706C
oklch(49.2% 0.085 190.4)
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 #AC2148, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.022
- Raspberry #B00149 ΔE 0.022
- Rose Red #BE013C ΔE 0.038
- Violet Red #A50055 ΔE 0.044
- Cranberry #9E003A ΔE 0.046
- Brown #A52A2A ΔE 0.046
- Lipstick Red #C0022F ΔE 0.049
- Light Burgundy #A8415B ΔE 0.049
Use #AC2148 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.