#A01A23
Closest named color: Auburn (#9B2226). oklch(45.7% 0.168 24.3), rgb(160, 26, 35).
Aa
White text reads best on this color (7.87:1).
About this color
#A01A23 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.168 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.011 away. White text reads best on it, at 7.87:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.168) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.66:1 |
| White text | 7.87:1 |
Values
| HEX | #A01A23 |
| RGB | rgb(160, 26, 35) |
| HSL | hsl(356, 72%, 36%) |
| OKLCH | oklch(45.7% 0.168 24.3) |
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 #A01A23 | 7.87:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #A01A23 | 2.66:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #A01A23 text on white | 7.87:1 | AAA | Lc 85.6 | Fine for body text |
| #A01A23 text on black | 2.66:1 | Fails | Lc -16.4 | 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 800.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3E1
oklch(93.6% 0.029 23)
-
Step 200
200
#FBCCC8
oklch(88.5% 0.054 23.9)
-
Step 300
300
#FAA8A1
oklch(81% 0.098 24.8)
-
Step 400
400
#F3746F
oklch(70.7% 0.157 24.2)
-
Step 500
500
#EA4648
oklch(63.1% 0.201 24.4)
-
Step 600
600
#D5132A
oklch(55.6% 0.218 24.3)
-
Step 700
700
#B7001F
oklch(49.1% 0.199 24.3)
-
Step 800
800 (this color)
#A01A23
oklch(45.7% 0.168 24.3)
-
Step 900
900
#78171B
oklch(37.6% 0.131 24.4)
-
Step 950
950
#471111
oklch(27.1% 0.082 24.5)
#A01A23 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) | #463F22 | 0.183 |
| Deuteranopia (no green cones) | #665C1D | 0.169 |
| Tritanopia (no blue cones) | #B1001F | 0.034 |
| Achromatopsia (no color) | #525252 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A01A23
#A01A23
oklch(45.7% 0.168 24.3)
- #00646B
#00646B
oklch(45.9% 0.078 203.2)
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 #A01A23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.011
- Carmine #9D0216 ΔE 0.021
- Brown #A52A2A ΔE 0.025
- Burnt Red #9F2305 ΔE 0.027
- Deep Red #9A0200 ΔE 0.031
- Blood Red #980002 ΔE 0.034
- Rufous #AE2012 ΔE 0.036
- Rouge #AB1239 ΔE 0.036
Use #A01A23 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.