#AA3C0B
Closest named color: Russet (#A13905). oklch(50.7% 0.154 39.8), rgb(170, 60, 11).
Aa
White text reads best on this color (6.24:1).
About this color
#AA3C0B is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.154 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.020 away. White text reads best on it, at 6.24:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.36:1 |
| White text | 6.24:1 |
Values
| HEX | #AA3C0B |
| RGB | rgb(170, 60, 11) |
| HSL | hsl(18, 88%, 35%) |
| OKLCH | oklch(50.7% 0.154 39.8) |
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 #AA3C0B | 6.24:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #AA3C0B | 3.36:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #AA3C0B text on white | 6.24:1 | AA | Lc 80.2 | Fine for body text |
| #AA3C0B text on black | 3.36:1 | AA large text | Lc -21.7 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F7E5DF
oklch(93.5% 0.021 39.4)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EBB19D
oklch(80.9% 0.074 39.9)
-
Step 400
400
#DF8566
oklch(70.6% 0.12 39.7)
-
Step 500
500
#D4633B
oklch(63.1% 0.153 39.5)
-
Step 600
600
#BF4713
oklch(55.6% 0.165 40)
-
Step 700
700 (this color)
#AA3C0B
oklch(50.7% 0.154 39.8)
-
Step 800
800
#862F0A
oklch(42.8% 0.127 39.8)
-
Step 900
900
#6C2B13
oklch(37.8% 0.099 39.6)
-
Step 950
950
#3F1A0D
oklch(27% 0.062 39.6)
#AA3C0B 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) | #5C5100 | 0.154 |
| Deuteranopia (no green cones) | #776A01 | 0.140 |
| Tritanopia (no blue cones) | #BC1B34 | 0.069 |
| Achromatopsia (no color) | #606060 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3C0B
#AA3C0B
oklch(50.7% 0.154 39.8)
- #007189
#007189
oklch(50.7% 0.092 219.4)
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 #AA3C0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.020
- Rusty Red #AF2F0D ΔE 0.022
- Burnt Umber #A0450E ΔE 0.024
- Brick #A03623 ΔE 0.031
- Rust Red #AA2704 ΔE 0.033
- Sinopia #BB3E03 ΔE 0.035
- Cinnamon #AC4F06 ΔE 0.041
- Rufous #AE2012 ΔE 0.043
Use #AA3C0B 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.