#A01B03
Closest named color: Burnt Red (#9F2305). oklch(45.6% 0.17 31.9), rgb(160, 27, 3).
Aa
White text reads best on this color (7.91:1).
About this color
#A01B03 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.170 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Red (#9F2305), ΔE 0.009 away. White text reads best on it, at 7.91:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Burnt Red (#9F2305) |
| Black text | 2.65:1 |
| White text | 7.91:1 |
Values
| HEX | #A01B03 |
| RGB | rgb(160, 27, 3) |
| HSL | hsl(9, 96%, 32%) |
| OKLCH | oklch(45.6% 0.17 31.9) |
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 #A01B03 | 7.91:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #A01B03 | 2.65:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #A01B03 text on white | 7.91:1 | AAA | Lc 85.7 | Fine for body text |
| #A01B03 text on black | 2.65:1 | Fails | Lc -16.3 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FCCDC3
oklch(88.6% 0.055 32.1)
-
Step 300
300
#FAA998
oklch(80.9% 0.099 32.4)
-
Step 400
400
#F3765F
oklch(70.7% 0.159 32)
-
Step 500
500
#EB482D
oklch(63.2% 0.204 32)
-
Step 600
600
#D22400
oklch(55.6% 0.21 32)
-
Step 700
700
#B21C00
oklch(49.1% 0.187 31.9)
-
Step 800
800 (this color)
#A01B03
oklch(45.6% 0.17 31.9)
-
Step 900
900
#791909
oklch(37.8% 0.133 32)
-
Step 950
950
#471108
oklch(27% 0.084 32.1)
#A01B03 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) | #483F00 | 0.182 |
| Deuteranopia (no green cones) | #685C00 | 0.163 |
| Tritanopia (no blue cones) | #B10019 | 0.039 |
| Achromatopsia (no color) | #515151 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A01B03
#A01B03
oklch(45.6% 0.17 31.9)
- #006270
#006270
oklch(45.5% 0.079 211.6)
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 #A01B03, closest first.
No curated palette has a color within ΔE 0.04 of #A01B03.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Red #9F2305 ΔE 0.009
- Auburn #9B2226 ΔE 0.025
- Deep Red #9A0200 ΔE 0.026
- Carmine #9D0216 ΔE 0.027
- Rust Red #AA2704 ΔE 0.029
- Blood Red #980002 ΔE 0.030
- Brown Red #922B05 ΔE 0.032
- Rufous #AE2012 ΔE 0.033
Use #A01B03 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.