#AA3627
Closest named color: Rusty Red (#AF2F0D). oklch(50.2% 0.154 30.5), rgb(170, 54, 39).
Aa
White text reads best on this color (6.42:1).
About this color
#AA3627 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.154 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.019 away. White text reads best on it, at 6.42:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.26:1 |
| White text | 6.42:1 |
Values
| HEX | #AA3627 |
| RGB | rgb(170, 54, 39) |
| HSL | hsl(7, 63%, 41%) |
| OKLCH | oklch(50.2% 0.154 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 #AA3627 | 6.42:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #AA3627 | 3.26:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #AA3627 text on white | 6.42:1 | AA | Lc 80.9 | Fine for body text |
| #AA3627 text on black | 3.26:1 | AA large text | Lc -21.0 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F3D0C9
oklch(88.5% 0.041 31.2)
-
Step 300
300
#EDAFA4
oklch(80.9% 0.075 30.1)
-
Step 400
400
#E18373
oklch(70.7% 0.119 30.6)
-
Step 500
500
#D6604E
oklch(63.2% 0.153 30.6)
-
Step 600
600
#C14231
oklch(55.6% 0.166 30.6)
-
Step 700
700 (this color)
#AA3627
oklch(50.2% 0.154 30.5)
-
Step 800
800
#872B1F
oklch(42.6% 0.128 30.5)
-
Step 900
900
#6D291F
oklch(37.8% 0.099 30.7)
-
Step 950
950
#401913
oklch(27.1% 0.062 30.5)
#AA3627 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) | #574E24 | 0.163 |
| Deuteranopia (no green cones) | #746823 | 0.148 |
| Tritanopia (no blue cones) | #BB1133 | 0.053 |
| Achromatopsia (no color) | #5F5F5F | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3627
#AA3627
oklch(50.2% 0.154 30.5)
- #00717F
#00717F
oklch(50.3% 0.087 209.7)
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 #AA3627, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.019
- Brick #A03623 ΔE 0.021
- Brown #A52A2A ΔE 0.026
- Rust Red #AA2704 ΔE 0.027
- Firebrick #B22222 ΔE 0.028
- Rufous #AE2012 ΔE 0.029
- Russet #A13905 ΔE 0.031
- Burnt Umber #A0450E ΔE 0.042
Use #AA3627 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.