#AA3021
Closest named color: Rusty Red (#AF2F0D). oklch(49.4% 0.161 30.5), rgb(170, 48, 33).
Aa
White text reads best on this color (6.65:1).
About this color
#AA3021 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.161 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.016 away. White text reads best on it, at 6.65:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #AA3021 |
| RGB | rgb(170, 48, 33) |
| HSL | hsl(7, 67%, 40%) |
| OKLCH | oklch(49.4% 0.161 30.5) |
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 #AA3021 | 6.65:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #AA3021 | 3.15:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #AA3021 text on white | 6.65:1 | AA | Lc 81.7 | Fine for body text |
| #AA3021 text on black | 3.15:1 | AA large text | Lc -20.2 | 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
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F4CFC8
oklch(88.4% 0.043 30.5)
-
Step 300
300
#EFAEA3
oklch(80.9% 0.078 29.7)
-
Step 400
400
#E38171
oklch(70.6% 0.124 30.3)
-
Step 500
500
#D95D4B
oklch(63.2% 0.16 30.4)
-
Step 600
600
#C43E2D
oklch(55.6% 0.173 30.5)
-
Step 700
700 (this color)
#AA3021
oklch(49.4% 0.161 30.5)
-
Step 800
800
#89291C
oklch(42.7% 0.133 30.8)
-
Step 900
900
#6E271D
oklch(37.7% 0.103 30.5)
-
Step 950
950
#411812
oklch(27% 0.065 30.3)
#AA3021 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) | #544B1E | 0.170 |
| Deuteranopia (no green cones) | #72661B | 0.156 |
| Tritanopia (no blue cones) | #BB002E | 0.052 |
| Achromatopsia (no color) | #5C5C5C | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3021
#AA3021
oklch(49.4% 0.161 30.5)
- #006E7D
#006E7D
oklch(49.4% 0.086 211.1)
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 #AA3021, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.016
- Rust Red #AA2704 ΔE 0.018
- Brown #A52A2A ΔE 0.020
- Rufous #AE2012 ΔE 0.020
- Brick #A03623 ΔE 0.020
- Firebrick #B22222 ΔE 0.022
- Russet #A13905 ΔE 0.031
- Burnt Red #9F2305 ΔE 0.036
Use #AA3021 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.