#AA3F36
Closest named color: Brick (#A03623). oklch(51.5% 0.143 27.9), rgb(170, 63, 54).
Aa
White text reads best on this color (6.04:1).
About this color
#AA3F36 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.143 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.033 away. White text reads best on it, at 6.04:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #AA3F36 |
| RGB | rgb(170, 63, 54) |
| HSL | hsl(5, 52%, 44%) |
| OKLCH | oklch(51.5% 0.143 27.9) |
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 #AA3F36 | 6.04:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #AA3F36 | 3.47:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #AA3F36 text on white | 6.04:1 | AA | Lc 79.4 | Fine for body text |
| #AA3F36 text on black | 3.47:1 | AA large text | Lc -22.4 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F7E5E2
oklch(93.5% 0.02 28.9)
-
Step 200
200
#F2D0CB
oklch(88.5% 0.039 27.8)
-
Step 300
300
#EAB0A8
oklch(80.8% 0.069 27.6)
-
Step 400
400
#DD857A
oklch(70.7% 0.11 27.8)
-
Step 500
500
#D16358
oklch(63.1% 0.141 27.6)
-
Step 600
600
#BC473D
oklch(55.5% 0.153 27.9)
-
Step 700
700 (this color)
#AA3F36
oklch(51.5% 0.143 27.9)
-
Step 800
800
#842F28
oklch(42.8% 0.119 27.8)
-
Step 900
900
#6A2B25
oklch(37.7% 0.092 27.7)
-
Step 950
950
#3E1A16
oklch(27% 0.057 28)
#AA3F36 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) | #5C5434 | 0.149 |
| Deuteranopia (no green cones) | #766B33 | 0.138 |
| Tritanopia (no blue cones) | #BB273E | 0.048 |
| Achromatopsia (no color) | #636363 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA3F36
#AA3F36
oklch(51.5% 0.143 27.9)
- #007582
#007582
oklch(51.5% 0.089 208.3)
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 #AA3F36, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.035
- Dull Red #BB3F3F ΔE 0.036
- Brown #A52A2A ΔE 0.039
- Firebrick #B22222 ΔE 0.041
- Russet #A13905 ΔE 0.043
- Light Maroon #A24857 ΔE 0.044
- Burnt Umber #A0450E ΔE 0.045
Use #AA3F36 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.