#AA2321
Closest named color: Rufous (#AE2012). oklch(48.3% 0.171 27.1), rgb(170, 35, 33).
Aa
White text reads best on this color (7.06:1).
About this color
#AA2321 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.171 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.013 away. White text reads best on it, at 7.06:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #AA2321 |
| RGB | rgb(170, 35, 33) |
| HSL | hsl(1, 67%, 40%) |
| OKLCH | oklch(48.3% 0.171 27.1) |
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 #AA2321 | 7.06:1 | AAA | Lc -88.0 | Fine for body text |
| Black text on #AA2321 | 2.97:1 | Fails | Lc 21.1 | Dividers and decoration only |
| #AA2321 text on white | 7.06:1 | AAA | Lc 83.0 | Fine for body text |
| #AA2321 text on black | 2.97:1 | Fails | Lc -19.0 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F6CEC9
oklch(88.4% 0.046 26.4)
-
Step 300
300
#F2ACA4
oklch(80.9% 0.084 26.4)
-
Step 400
400
#E87E73
oklch(70.8% 0.133 27.1)
-
Step 500
500
#DD574E
oklch(63% 0.17 26.9)
-
Step 600
600
#C93631
oklch(55.7% 0.185 27.1)
-
Step 700
700 (this color)
#AA2321
oklch(48.3% 0.171 27.1)
-
Step 800
800
#8C231F
oklch(42.7% 0.141 27.2)
-
Step 900
900
#71231F
oklch(37.7% 0.111 26.7)
-
Step 950
950
#431613
oklch(27.1% 0.071 26.6)
#AA2321 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) | #4E461F | 0.185 |
| Deuteranopia (no green cones) | #6F631B | 0.169 |
| Tritanopia (no blue cones) | #BC0025 | 0.039 |
| Achromatopsia (no color) | #585858 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA2321
#AA2321
oklch(48.3% 0.171 27.1)
- #006B76
#006B76
oklch(48.2% 0.083 207.2)
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 #AA2321, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.013
- Brown #A52A2A ΔE 0.013
- Firebrick #B22222 ΔE 0.016
- Rust Red #AA2704 ΔE 0.020
- Rusty Red #AF2F0D ΔE 0.029
- Burnt Red #9F2305 ΔE 0.030
- Brick #A03623 ΔE 0.031
- Auburn #9B2226 ΔE 0.033
Use #AA2321 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.