#AC223F
Closest named color: Rouge (#AB1239). oklch(49% 0.172 15.3), rgb(172, 34, 63).
Aa
White text reads best on this color (6.87:1).
About this color
#AC223F is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.172 and its hue 15°. 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 6.87:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.05:1 |
| White text | 6.87:1 |
Values
| HEX | #AC223F |
| RGB | rgb(172, 34, 63) |
| HSL | hsl(347, 67%, 40%) |
| OKLCH | oklch(49% 0.172 15.3) |
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 #AC223F | 6.87:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #AC223F | 3.05:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #AC223F text on white | 6.87:1 | AA | Lc 82.2 | Fine for body text |
| #AC223F text on black | 3.05:1 | AA large text | Lc -19.7 | 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
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F6CDCF
oklch(88.4% 0.046 14.8)
-
Step 300
300
#F2ABAF
oklch(81% 0.084 15.4)
-
Step 400
400
#E77B85
oklch(70.6% 0.133 15.2)
-
Step 500
500
#DD5467
oklch(63.1% 0.171 15.2)
-
Step 600
600
#C8324E
oklch(55.6% 0.185 15.5)
-
Step 700
700 (this color)
#AC223F
oklch(49% 0.172 15.3)
-
Step 800
800
#8C2034
oklch(42.7% 0.143 15.6)
-
Step 900
900
#71212E
oklch(37.7% 0.112 14.9)
-
Step 950
950
#42151B
oklch(27% 0.07 15.1)
#AC223F 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) | #4B483F | 0.191 |
| Deuteranopia (no green cones) | #6D643B | 0.175 |
| Tritanopia (no blue cones) | #BD002F | 0.037 |
| Achromatopsia (no color) | #5A5A5A | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC223F
#AC223F
oklch(49% 0.172 15.3)
- #006F6F
#006F6F
oklch(49% 0.084 194.8)
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 #AC223F, 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 0.031
- Brown #A52A2A ΔE 0.034
- Rose Red #BE013C ΔE 0.036
- Firebrick #B22222 ΔE 0.037
- Lipstick Red #C0022F ΔE 0.042
- Cranberry #9E003A ΔE 0.046
- Rufous #AE2012 ΔE 0.046
Use #AC223F 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.