#AE203B
Closest named color: Rouge (#AB1239). oklch(49.2% 0.176 17), rgb(174, 32, 59).
Aa
White text reads best on this color (6.84:1).
About this color
#AE203B is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.176 and its hue 17°. 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 6.84:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 3.06:1 |
| White text | 6.84:1 |
Values
| HEX | #AE203B |
| RGB | rgb(174, 32, 59) |
| HSL | hsl(349, 69%, 40%) |
| OKLCH | oklch(49.2% 0.176 17) |
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 #AE203B | 6.84:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #AE203B | 3.06:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #AE203B text on white | 6.84:1 | AA | Lc 82.0 | Fine for body text |
| #AE203B text on black | 3.06:1 | AA large text | Lc -19.9 | 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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCE
oklch(88.5% 0.048 16.5)
-
Step 300
300
#F3ABAD
oklch(81% 0.085 17.3)
-
Step 400
400
#E97A82
oklch(70.7% 0.137 16.7)
-
Step 500
500
#DE5362
oklch(63.1% 0.173 17.3)
-
Step 600
600
#CA304A
oklch(55.7% 0.189 16.9)
-
Step 700
700 (this color)
#AE203B
oklch(49.2% 0.176 17)
-
Step 800
800
#8D1E31
oklch(42.7% 0.145 16.9)
-
Step 900
900
#72202B
oklch(37.7% 0.114 17)
-
Step 950
950
#431519
oklch(27.1% 0.071 18)
#AE203B 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) | #4B483B | 0.196 |
| Deuteranopia (no green cones) | #6F6537 | 0.177 |
| Tritanopia (no blue cones) | #BF002C | 0.036 |
| Achromatopsia (no color) | #5B5B5B | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AE203B
#AE203B
oklch(49.2% 0.176 17)
- #006F71
#006F71
oklch(49.1% 0.084 197)
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 #AE203B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.016
- Firebrick #B22222 ΔE 0.031
- Brown #A52A2A ΔE 0.032
- Rose Red #BE013C ΔE 0.033
- Raspberry #B00149 ΔE 0.034
- Lipstick Red #C0022F ΔE 0.037
- Rufous #AE2012 ΔE 0.041
- Scarlet #BE0119 ΔE 0.044
Use #AE203B 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.