#AB001E
Closest named color: Rouge (#AB1239). oklch(46.7% 0.189 23.8), rgb(171, 0, 30).
Aa
White text reads best on this color (7.63:1).
About this color
#AB001E is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.189 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.029 away. White text reads best on it, at 7.63:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.75:1 |
| White text | 7.63:1 |
Values
| HEX | #AB001E |
| RGB | rgb(171, 0, 30) |
| HSL | hsl(349, 100%, 34%) |
| OKLCH | oklch(46.7% 0.189 23.8) |
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 #AB001E | 7.63:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #AB001E | 2.75:1 | Fails | Lc 20.1 | Dividers and decoration only |
| #AB001E text on white | 7.63:1 | AAA | Lc 83.9 | Fine for body text |
| #AB001E text on black | 2.75:1 | Fails | Lc -18.1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FBE3E1
oklch(93.5% 0.027 23.4)
-
Step 200
200
#F9CDC9
oklch(88.5% 0.05 24.2)
-
Step 300
300
#F6AAA4
oklch(80.9% 0.091 24.3)
-
Step 400
400
#EE7873
oklch(70.7% 0.146 24)
-
Step 500
500
#E44E4F
oklch(63.1% 0.186 23.8)
-
Step 600
600
#D02633
oklch(55.7% 0.203 23.7)
-
Step 700
700 (this color)
#AB001E
oklch(46.7% 0.189 23.8)
-
Step 800
800
#921720
oklch(42.8% 0.157 24)
-
Step 900
900
#751D1F
oklch(37.7% 0.122 24.1)
-
Step 950
950
#451313
oklch(27% 0.077 23.8)
#AB001E 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) | #453E1D | 0.210 |
| Deuteranopia (no green cones) | #6B5F16 | 0.189 |
| Tritanopia (no blue cones) | #BD0012 | 0.040 |
| Achromatopsia (no color) | #535353 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AB001E
#AB001E
oklch(46.7% 0.189 23.8)
- #00676E
#00676E
oklch(46.8% 0.08 203)
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 #AB001E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.029
- Rufous #AE2012 ΔE 0.030
- Carmine #9D0216 ΔE 0.031
- Firebrick #B22222 ΔE 0.032
- Brown #A52A2A ΔE 0.033
- Auburn #9B2226 ΔE 0.035
- Burnt Red #9F2305 ΔE 0.039
- Rust Red #AA2704 ΔE 0.040
Use #AB001E 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.