#AA3645
Closest named color: Light Burgundy (#A8415B). oklch(50.7% 0.151 17), rgb(170, 54, 69).
Aa
White text reads best on this color (6.31:1).
About this color
#AA3645 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.151 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Light Burgundy (#A8415B), ΔE 0.032 away. White text reads best on it, at 6.31:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.32:1 |
| White text | 6.31:1 |
Values
| HEX | #AA3645 |
| RGB | rgb(170, 54, 69) |
| HSL | hsl(352, 52%, 44%) |
| OKLCH | oklch(50.7% 0.151 17) |
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 #AA3645 | 6.31:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #AA3645 | 3.32:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #AA3645 text on white | 6.31:1 | AA | Lc 80.5 | Fine for body text |
| #AA3645 text on black | 3.32:1 | AA large text | Lc -21.4 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E5
oklch(93.7% 0.021 17.5)
-
Step 200
200
#F3CFCF
oklch(88.5% 0.041 17.9)
-
Step 300
300
#ECAEB0
oklch(80.9% 0.073 16.7)
-
Step 400
400
#E08186
oklch(70.7% 0.117 17.1)
-
Step 500
500
#D45E68
oklch(63.1% 0.149 17.2)
-
Step 600
600
#BF4050
oklch(55.5% 0.162 16.9)
-
Step 700
700 (this color)
#AA3645
oklch(50.7% 0.151 17)
-
Step 800
800
#862A35
oklch(42.7% 0.125 17.3)
-
Step 900
900
#6C282E
oklch(37.8% 0.097 17.7)
-
Step 950
950
#3F181B
oklch(26.9% 0.061 17.4)
#AA3645 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) | #545045 | 0.165 |
| Deuteranopia (no green cones) | #716942 | 0.153 |
| Tritanopia (no blue cones) | #BA1C3C | 0.039 |
| Achromatopsia (no color) | #606060 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3645
#AA3645
oklch(50.7% 0.151 17)
- #007476
#007476
oklch(50.7% 0.086 196.9)
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 #AA3645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Burgundy #A8415B ΔE 0.032
- Brown #A52A2A ΔE 0.036
- Light Maroon #A24857 ΔE 0.037
- Firebrick #B22222 ΔE 0.042
- Rouge #AB1239 ΔE 0.043
- Dull Red #BB3F3F ΔE 0.043
- Brick #A03623 ΔE 0.046
- Dark Rose #B5485D ΔE 0.049
Use #AA3645 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.