#AB1A23
Closest named color: Rufous (#AE2012). oklch(47.8% 0.178 24.9), rgb(171, 26, 35).
Aa
White text reads best on this color (7.23:1).
About this color
#AB1A23 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.178 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.018 away. White text reads best on it, at 7.23:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.178) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #AB1A23 |
| RGB | rgb(171, 26, 35) |
| HSL | hsl(356, 74%, 39%) |
| OKLCH | oklch(47.8% 0.178 24.9) |
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 #AB1A23 | 7.23:1 | AAA | Lc -88.3 | Fine for body text |
| Black text on #AB1A23 | 2.90:1 | Fails | Lc 20.7 | Dividers and decoration only |
| #AB1A23 text on white | 7.23:1 | AAA | Lc 83.3 | Fine for body text |
| #AB1A23 text on black | 2.90:1 | Fails | Lc -18.6 | 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
#FAE4E2
oklch(93.6% 0.024 23.9)
-
Step 200
200
#F8CEC9
oklch(88.6% 0.048 26)
-
Step 300
300
#F3ABA5
oklch(80.8% 0.086 24.5)
-
Step 400
400
#EA7B74
oklch(70.7% 0.138 24.9)
-
Step 500
500
#E05450
oklch(63.2% 0.176 25.1)
-
Step 600
600
#CB3034
oklch(55.5% 0.191 24.9)
-
Step 700
700 (this color)
#AB1A23
oklch(47.8% 0.178 24.9)
-
Step 800
800
#8E1E21
oklch(42.6% 0.147 24.9)
-
Step 900
900
#722120
oklch(37.6% 0.114 25.1)
-
Step 950
950
#431513
oklch(26.9% 0.072 25.6)
#AB1A23 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) | #4B4322 | 0.194 |
| Deuteranopia (no green cones) | #6E621C | 0.177 |
| Tritanopia (no blue cones) | #BD0020 | 0.036 |
| Achromatopsia (no color) | #575757 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AB1A23
#AB1A23
oklch(47.8% 0.178 24.9)
- #006A73
#006A73
oklch(47.8% 0.082 205)
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 #AB1A23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.018
- Brown #A52A2A ΔE 0.019
- Firebrick #B22222 ΔE 0.019
- Rust Red #AA2704 ΔE 0.029
- Rouge #AB1239 ΔE 0.029
- Auburn #9B2226 ΔE 0.032
- Burnt Red #9F2305 ΔE 0.035
- Scarlet #BE0119 ΔE 0.038
Use #AB1A23 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.