#AC1F44
Closest named color: Rouge (#AB1239). oklch(48.9% 0.175 12.5), rgb(172, 31, 68).
Aa
White text reads best on this color (6.92:1).
About this color
#AC1F44 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.175 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.016 away. White text reads best on it, at 6.92:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.03:1 |
| White text | 6.92:1 |
Values
| HEX | #AC1F44 |
| RGB | rgb(172, 31, 68) |
| HSL | hsl(344, 69%, 40%) |
| OKLCH | oklch(48.9% 0.175 12.5) |
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 #AC1F44 | 6.92:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #AC1F44 | 3.03:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #AC1F44 text on white | 6.92:1 | AA | Lc 82.4 | Fine for body text |
| #AC1F44 text on black | 3.03:1 | AA large text | Lc -19.5 | 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 700.
-
Step 50
50
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E5
oklch(93.7% 0.024 14.4)
-
Step 200
200
#F7CDD0
oklch(88.5% 0.048 13.2)
-
Step 300
300
#F2AAB1
oklch(80.8% 0.085 12.7)
-
Step 400
400
#E87A89
oklch(70.7% 0.136 12.6)
-
Step 500
500
#DD536C
oklch(63.1% 0.173 12.6)
-
Step 600
600
#C83054
oklch(55.6% 0.188 12.6)
-
Step 700
700 (this color)
#AC1F44
oklch(48.9% 0.175 12.5)
-
Step 800
800
#8C1E38
oklch(42.6% 0.145 12.7)
-
Step 900
900
#712031
oklch(37.7% 0.114 12.1)
-
Step 950
950
#42141D
oklch(26.9% 0.072 11.4)
#AC1F44 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) | #484744 | 0.197 |
| Deuteranopia (no green cones) | #6C6440 | 0.179 |
| Tritanopia (no blue cones) | #BD0030 | 0.040 |
| Achromatopsia (no color) | #5A5A5A | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC1F44
#AC1F44
oklch(48.9% 0.175 12.5)
- #006F6D
#006F6D
oklch(49% 0.084 192.6)
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 #AC1F44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.016
- Raspberry #B00149 ΔE 0.023
- Rose Red #BE013C ΔE 0.037
- Brown #A52A2A ΔE 0.042
- Cranberry #9E003A ΔE 0.043
- Firebrick #B22222 ΔE 0.045
- Lipstick Red #C0022F ΔE 0.046
- Violet Red #A50055 ΔE 0.047
Use #AC1F44 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.