#AB2133
Closest named color: Rouge (#AB1239). oklch(48.5% 0.172 20.3), rgb(171, 33, 51).
Aa
White text reads best on this color (7.00:1).
About this color
#AB2133 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.172 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.019 away. White text reads best on it, at 7.00:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #AB2133 |
| RGB | rgb(171, 33, 51) |
| HSL | hsl(352, 68%, 40%) |
| OKLCH | oklch(48.5% 0.172 20.3) |
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 #AB2133 | 7.00:1 | AAA | Lc -87.8 | Fine for body text |
| Black text on #AB2133 | 2.99:1 | Fails | Lc 21.3 | Dividers and decoration only |
| #AB2133 text on white | 7.00:1 | AAA | Lc 82.7 | Fine for body text |
| #AB2133 text on black | 2.99:1 | Fails | Lc -19.2 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CECC
oklch(88.6% 0.047 21.4)
-
Step 300
300
#F2ABAA
oklch(80.8% 0.084 20)
-
Step 400
400
#E87C7D
oklch(70.7% 0.134 20.4)
-
Step 500
500
#DD555C
oklch(63% 0.17 20.4)
-
Step 600
600
#C93343
oklch(55.7% 0.186 20.2)
-
Step 700
700 (this color)
#AB2133
oklch(48.5% 0.172 20.3)
-
Step 800
800
#8C212C
oklch(42.7% 0.142 20.3)
-
Step 900
900
#712228
oklch(37.7% 0.111 20)
-
Step 950
950
#431517
oklch(27% 0.071 20.7)
#AB2133 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) | #4B4633 | 0.190 |
| Deuteranopia (no green cones) | #6E632F | 0.172 |
| Tritanopia (no blue cones) | #BC0029 | 0.035 |
| Achromatopsia (no color) | #595959 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AB2133
#AB2133
oklch(48.5% 0.172 20.3)
- #006D72
#006D72
oklch(48.6% 0.083 200.4)
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 #AB2133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.019
- Brown #A52A2A ΔE 0.020
- Firebrick #B22222 ΔE 0.024
- Rufous #AE2012 ΔE 0.031
- Auburn #9B2226 ΔE 0.037
- Rust Red #AA2704 ΔE 0.041
- Lipstick Red #C0022F ΔE 0.042
- Rose Red #BE013C ΔE 0.042
Use #AB2133 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.