#AB1F28
Closest named color: Brown (#A52A2A). oklch(48.2% 0.174 24.1), rgb(171, 31, 40).
Aa
White text reads best on this color (7.09:1).
About this color
#AB1F28 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.174 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.016 away. White text reads best on it, at 7.09:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.95:1 |
| White text | 7.09:1 |
Values
| HEX | #AB1F28 |
| RGB | rgb(171, 31, 40) |
| HSL | hsl(356, 69%, 40%) |
| OKLCH | oklch(48.2% 0.174 24.1) |
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 #AB1F28 | 7.09:1 | AAA | Lc -88.0 | Fine for body text |
| Black text on #AB1F28 | 2.95:1 | Fails | Lc 21.1 | Dividers and decoration only |
| #AB1F28 text on white | 7.09:1 | AAA | Lc 83.0 | Fine for body text |
| #AB1F28 text on black | 2.95:1 | Fails | Lc -19.0 | 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
#F7CECA
oklch(88.5% 0.047 24.6)
-
Step 300
300
#F3ACA6
oklch(81% 0.085 24.5)
-
Step 400
400
#E97C77
oklch(70.7% 0.135 23.8)
-
Step 500
500
#DE5553
oklch(63% 0.172 24.2)
-
Step 600
600
#CA3338
oklch(55.7% 0.187 24.2)
-
Step 700
700 (this color)
#AB1F28
oklch(48.2% 0.174 24.1)
-
Step 800
800
#8D2024
oklch(42.6% 0.144 24.1)
-
Step 900
900
#722222
oklch(37.8% 0.113 24.3)
-
Step 950
950
#431514
oklch(27% 0.072 24.4)
#AB1F28 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) | #4C4527 | 0.191 |
| Deuteranopia (no green cones) | #6E6322 | 0.175 |
| Tritanopia (no blue cones) | #BD0024 | 0.036 |
| Achromatopsia (no color) | #585858 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AB1F28
#AB1F28
oklch(48.2% 0.174 24.1)
- #006B74
#006B74
oklch(48.2% 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 #AB1F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.016
- Firebrick #B22222 ΔE 0.018
- Rufous #AE2012 ΔE 0.020
- Rouge #AB1239 ΔE 0.028
- Rust Red #AA2704 ΔE 0.030
- Auburn #9B2226 ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.037
- Burnt Red #9F2305 ΔE 0.037
Use #AB1F28 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.