#A3110D
Closest named color: Burnt Red (#9F2305). oklch(45.6% 0.178 28.8), rgb(163, 17, 13).
Aa
White text reads best on this color (7.94:1).
About this color
#A3110D is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.178 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Red (#9F2305), ΔE 0.020 away. White text reads best on it, at 7.94:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.178) |
| Temperature | warm |
| Nearest name | Burnt Red (#9F2305) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #A3110D |
| RGB | rgb(163, 17, 13) |
| HSL | hsl(2, 85%, 35%) |
| OKLCH | oklch(45.6% 0.178 28.8) |
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 #A3110D | 7.94:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #A3110D | 2.64:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #A3110D text on white | 7.94:1 | AAA | Lc 85.5 | Fine for body text |
| #A3110D text on black | 2.64:1 | Fails | Lc -16.5 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FDCCC4
oklch(88.6% 0.057 29)
-
Step 300
300
#FDA79A
oklch(81% 0.104 29)
-
Step 400
400
#F77262
oklch(70.8% 0.166 28.9)
-
Step 500
500
#EE4134
oklch(63.1% 0.211 28.9)
-
Step 600
600
#D90005
oklch(55.6% 0.228 28.8)
-
Step 700
700
#B80004
oklch(49.2% 0.201 28.8)
-
Step 800
800 (this color)
#A3110D
oklch(45.6% 0.178 28.8)
-
Step 900
900
#7B130E
oklch(37.8% 0.139 28.7)
-
Step 950
950
#480F0A
oklch(26.9% 0.087 29.1)
#A3110D 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) | #463D08 | 0.193 |
| Deuteranopia (no green cones) | #685C00 | 0.175 |
| Tritanopia (no blue cones) | #B40014 | 0.035 |
| Achromatopsia (no color) | #515151 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3110D
#A3110D
oklch(45.6% 0.178 28.8)
- #00636E
#00636E
oklch(45.7% 0.079 208)
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 #A3110D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Red #9F2305 ΔE 0.020
- Carmine #9D0216 ΔE 0.020
- Auburn #9B2226 ΔE 0.024
- Deep Red #9A0200 ΔE 0.025
- Blood Red #980002 ΔE 0.029
- Rufous #AE2012 ΔE 0.031
- Brown #A52A2A ΔE 0.032
- Rust Red #AA2704 ΔE 0.032
Use #A3110D 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.