#AA4437
Closest named color: Dull Red (#BB3F3F). oklch(52.2% 0.137 29.7), rgb(170, 68, 55).
Aa
White text reads best on this color (5.84:1).
About this color
#AA4437 is a medium-dark, moderately saturated red. In OKLCH its lightness is 52%, its chroma 0.137 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.035 away. White text reads best on it, at 5.84:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.59:1 |
| White text | 5.84:1 |
Values
| HEX | #AA4437 |
| RGB | rgb(170, 68, 55) |
| HSL | hsl(7, 51%, 44%) |
| OKLCH | oklch(52.2% 0.137 29.7) |
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 #AA4437 | 5.84:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #AA4437 | 3.59:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #AA4437 text on white | 5.84:1 | AA | Lc 78.5 | Fine for body text |
| #AA4437 text on black | 3.59:1 | AA large text | Lc -23.2 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E2
oklch(93.5% 0.019 29.5)
-
Step 200
200
#F1D1CB
oklch(88.6% 0.037 30.4)
-
Step 300
300
#E8B1A8
oklch(80.8% 0.066 29.2)
-
Step 400
400
#DB8779
oklch(70.8% 0.106 30.1)
-
Step 500
500
#CE6657
oklch(63.1% 0.135 29.8)
-
Step 600
600
#BA4A3C
oklch(55.6% 0.148 29.7)
-
Step 700
700 (this color)
#AA4437
oklch(52.2% 0.137 29.7)
-
Step 800
800
#823127
oklch(42.7% 0.114 29.6)
-
Step 900
900
#692C24
oklch(37.7% 0.089 29.5)
-
Step 950
950
#3E1B16
oklch(27.2% 0.056 29.6)
#AA4437 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) | #5F5735 | 0.142 |
| Deuteranopia (no green cones) | #786D34 | 0.131 |
| Tritanopia (no blue cones) | #BA2F41 | 0.048 |
| Achromatopsia (no color) | #656565 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA4437
#AA4437
oklch(52.2% 0.137 29.7)
- #007786
#007786
oklch(52.2% 0.09 210)
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 #AA4437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.035
- Brick #A03623 ΔE 0.039
- Sienna #A0522D ΔE 0.039
- Rusty Red #AF2F0D ΔE 0.041
- Burnt Umber #A0450E ΔE 0.042
- Dusty Red #B9484E ΔE 0.042
- Light Maroon #A24857 ΔE 0.043
- Sinopia #BB3E03 ΔE 0.045
Use #AA4437 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.