#A0340B
Closest named color: Russet (#A13905). oklch(48% 0.15 37.9), rgb(160, 52, 11).
Aa
White text reads best on this color (7.02:1).
About this color
#A0340B is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.150 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.011 away. White text reads best on it, at 7.02:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 2.99:1 |
| White text | 7.02:1 |
Values
| HEX | #A0340B |
| RGB | rgb(160, 52, 11) |
| HSL | hsl(17, 87%, 34%) |
| OKLCH | oklch(48% 0.15 37.9) |
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 #A0340B | 7.02:1 | AAA | Lc -88.3 | Fine for body text |
| Black text on #A0340B | 2.99:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #A0340B text on white | 7.02:1 | AAA | Lc 83.3 | Fine for body text |
| #A0340B text on black | 2.99:1 | Fails | Lc -18.7 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EBB19F
oklch(80.9% 0.073 37.9)
-
Step 400
400
#DE866A
oklch(70.7% 0.116 38.4)
-
Step 500
500
#D36441
oklch(63.1% 0.149 38)
-
Step 600
600
#BE471F
oklch(55.5% 0.162 37.8)
-
Step 700
700 (this color)
#A0340B
oklch(48% 0.15 37.9)
-
Step 800
800
#852F12
oklch(42.7% 0.125 37.8)
-
Step 900
900
#6B2B17
oklch(37.7% 0.097 37.7)
-
Step 950
950
#3F1A0F
oklch(27% 0.061 37.3)
#A0340B 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) | #544A02 | 0.153 |
| Deuteranopia (no green cones) | #6F6202 | 0.138 |
| Tritanopia (no blue cones) | #B10F2D | 0.063 |
| Achromatopsia (no color) | #595959 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0340B
#A0340B
oklch(48% 0.15 37.9)
- #00697E
#00697E
oklch(48.1% 0.086 217.9)
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 #A0340B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.011
- Brick #A03623 ΔE 0.016
- Rust Red #AA2704 ΔE 0.024
- Burnt Red #9F2305 ΔE 0.027
- Rusty Red #AF2F0D ΔE 0.030
- Burnt Umber #A0450E ΔE 0.034
- Brown #A52A2A ΔE 0.035
- Brown Red #922B05 ΔE 0.036
Use #A0340B 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.