#AE052B
Closest named color: Rouge (#AB1239). oklch(47.7% 0.189 20.4), rgb(174, 5, 43).
Aa
White text reads best on this color (7.35:1).
About this color
#AE052B is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.189 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.017 away. White text reads best on it, at 7.35:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #AE052B |
| RGB | rgb(174, 5, 43) |
| HSL | hsl(347, 94%, 35%) |
| OKLCH | oklch(47.7% 0.189 20.4) |
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 #AE052B | 7.35:1 | AAA | Lc -88.2 | Fine for body text |
| Black text on #AE052B | 2.85:1 | Fails | Lc 20.9 | Dividers and decoration only |
| #AE052B text on white | 7.35:1 | AAA | Lc 83.1 | Fine for body text |
| #AE052B text on black | 2.85:1 | Fails | Lc -18.8 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CDCB
oklch(88.6% 0.05 21.2)
-
Step 300
300
#F6A9A8
oklch(80.9% 0.091 20.1)
-
Step 400
400
#EE7779
oklch(70.7% 0.147 20.5)
-
Step 500
500
#E44D57
oklch(63.1% 0.187 20.6)
-
Step 600
600
#D0243D
oklch(55.7% 0.204 20.3)
-
Step 700
700 (this color)
#AE052B
oklch(47.7% 0.189 20.4)
-
Step 800
800
#911628
oklch(42.7% 0.156 20.2)
-
Step 900
900
#751C25
oklch(37.7% 0.122 20)
-
Step 950
950
#451316
oklch(27.1% 0.077 20.4)
#AE052B 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) | #46402B | 0.211 |
| Deuteranopia (no green cones) | #6C6125 | 0.191 |
| Tritanopia (no blue cones) | #C0001A | 0.041 |
| Achromatopsia (no color) | #565656 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AE052B
#AE052B
oklch(47.7% 0.189 20.4)
- #006A6F
#006A6F
oklch(47.7% 0.081 200.5)
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 #AE052B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.017
- Firebrick #B22222 ΔE 0.031
- Brown #A52A2A ΔE 0.034
- Rufous #AE2012 ΔE 0.035
- Scarlet #BE0119 ΔE 0.038
- Lipstick Red #C0022F ΔE 0.038
- Rose Red #BE013C ΔE 0.039
- Raspberry #B00149 ΔE 0.041
Use #AE052B 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.