#AA423A
Closest named color: Dull Red (#BB3F3F). oklch(51.9% 0.139 27.3), rgb(170, 66, 58).
Aa
White text reads best on this color (5.91:1).
About this color
#AA423A is a medium-dark, moderately saturated red. In OKLCH its lightness is 52%, its chroma 0.139 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.034 away. White text reads best on it, at 5.91:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.139) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.54:1 |
| White text | 5.91:1 |
Values
| HEX | #AA423A |
| RGB | rgb(170, 66, 58) |
| HSL | hsl(4, 49%, 45%) |
| OKLCH | oklch(51.9% 0.139 27.3) |
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 #AA423A | 5.91:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #AA423A | 3.54:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #AA423A text on white | 5.91:1 | AA | Lc 78.8 | Fine for body text |
| #AA423A text on black | 3.54:1 | AA large text | Lc -23.0 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F7E5E3
oklch(93.6% 0.02 25.2)
-
Step 200
200
#F1D0CC
oklch(88.4% 0.038 26.1)
-
Step 300
300
#E9B1A9
oklch(81% 0.067 27.9)
-
Step 400
400
#DB867C
oklch(70.7% 0.106 27.3)
-
Step 500
500
#CF655A
oklch(63.1% 0.136 27.6)
-
Step 600
600
#BB4940
oklch(55.7% 0.149 27.4)
-
Step 700
700 (this color)
#AA423A
oklch(51.9% 0.139 27.3)
-
Step 800
800
#82302A
oklch(42.6% 0.115 27.2)
-
Step 900
900
#692C26
oklch(37.7% 0.089 27.7)
-
Step 950
950
#3E1A17
oklch(27% 0.057 26.4)
#AA423A 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) | #5D5639 | 0.146 |
| Deuteranopia (no green cones) | #776C37 | 0.134 |
| Tritanopia (no blue cones) | #BA2C41 | 0.046 |
| Achromatopsia (no color) | #646464 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA423A
#AA423A
oklch(51.9% 0.139 27.3)
- #007783
#007783
oklch(52% 0.089 207.1)
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 #AA423A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.034
- Brick #A03623 ΔE 0.038
- Light Maroon #A24857 ΔE 0.039
- Dusty Red #B9484E ΔE 0.041
- Rusty Red #AF2F0D ΔE 0.041
- Brown #A52A2A ΔE 0.044
- Sienna #A0522D ΔE 0.045
- Burnt Umber #A0450E ΔE 0.047
Use #AA423A 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.