#AA2D23
Closest named color: Brown (#A52A2A). oklch(49.2% 0.163 29), rgb(170, 45, 35).
Aa
White text reads best on this color (6.75:1).
About this color
#AA2D23 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.163 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.015 away. White text reads best on it, at 6.75:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.163) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.10:1 |
| White text | 6.75:1 |
Values
| HEX | #AA2D23 |
| RGB | rgb(170, 45, 35) |
| HSL | hsl(4, 66%, 40%) |
| OKLCH | oklch(49.2% 0.163 29) |
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 #AA2D23 | 6.75:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #AA2D23 | 3.10:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #AA2D23 text on white | 6.75:1 | AA | Lc 82.0 | Fine for body text |
| #AA2D23 text on black | 3.10:1 | AA large text | Lc -19.9 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#EFAEA3
oklch(80.9% 0.078 29.7)
-
Step 400
400
#E48072
oklch(70.6% 0.126 29)
-
Step 500
500
#DA5C4D
oklch(63.2% 0.161 29.2)
-
Step 600
600
#C53C30
oklch(55.6% 0.176 29)
-
Step 700
700 (this color)
#AA2D23
oklch(49.2% 0.163 29)
-
Step 800
800
#8A271E
oklch(42.7% 0.136 29.1)
-
Step 900
900
#6F261E
oklch(37.7% 0.105 29.2)
-
Step 950
950
#411712
oklch(26.9% 0.067 29.1)
#AA2D23 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) | #524A21 | 0.175 |
| Deuteranopia (no green cones) | #71651E | 0.158 |
| Tritanopia (no blue cones) | #BB002C | 0.047 |
| Achromatopsia (no color) | #5B5B5B | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA2D23
#AA2D23
oklch(49.2% 0.163 29)
- #006E7B
#006E7B
oklch(49.3% 0.085 209)
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 #AA2D23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.015
- Rufous #AE2012 ΔE 0.017
- Rust Red #AA2704 ΔE 0.018
- Firebrick #B22222 ΔE 0.018
- Rusty Red #AF2F0D ΔE 0.020
- Brick #A03623 ΔE 0.022
- Burnt Red #9F2305 ΔE 0.034
- Russet #A13905 ΔE 0.035
Use #AA2D23 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.