#AA3D1C
Closest named color: Rusty Red (#AF2F0D). oklch(50.9% 0.15 36.7), rgb(170, 61, 28).
Aa
White text reads best on this color (6.18:1).
About this color
#AA3D1C is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.150 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.022 away. White text reads best on it, at 6.18:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.39:1 |
| White text | 6.18:1 |
Values
| HEX | #AA3D1C |
| RGB | rgb(170, 61, 28) |
| HSL | hsl(14, 72%, 39%) |
| OKLCH | oklch(50.9% 0.15 36.7) |
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 #AA3D1C | 6.18:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #AA3D1C | 3.39:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #AA3D1C text on white | 6.18:1 | AA | Lc 80.0 | Fine for body text |
| #AA3D1C text on black | 3.39:1 | AA large text | Lc -21.9 | 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
#F2D1C7
oklch(88.6% 0.04 37.5)
-
Step 300
300
#EBB1A0
oklch(80.9% 0.072 37)
-
Step 400
400
#DF856C
oklch(70.7% 0.117 36.3)
-
Step 500
500
#D36444
oklch(63.2% 0.148 36.9)
-
Step 600
600
#BE4723
oklch(55.6% 0.161 36.8)
-
Step 700
700 (this color)
#AA3D1C
oklch(50.9% 0.15 36.7)
-
Step 800
800
#852F15
oklch(42.7% 0.124 36.8)
-
Step 900
900
#6B2B18
oklch(37.7% 0.097 37.1)
-
Step 950
950
#3F1A0F
oklch(27% 0.061 37.3)
#AA3D1C 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) | #5C5217 | 0.152 |
| Deuteranopia (no green cones) | #776A17 | 0.138 |
| Tritanopia (no blue cones) | #BB1F37 | 0.063 |
| Achromatopsia (no color) | #616161 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3D1C
#AA3D1C
oklch(50.9% 0.15 36.7)
- #007287
#007287
oklch(50.9% 0.091 216.4)
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 #AA3D1C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.022
- Russet #A13905 ΔE 0.024
- Burnt Umber #A0450E ΔE 0.027
- Brick #A03623 ΔE 0.028
- Rust Red #AA2704 ΔE 0.034
- Sinopia #BB3E03 ΔE 0.036
- Rufous #AE2012 ΔE 0.041
- Brown #A52A2A ΔE 0.043
Use #AA3D1C 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.