#A66571
Closest named color: Mauve (#AE7181). oklch(58.2% 0.085 8.1), rgb(166, 101, 113).
Aa
Black text reads best on this color (4.72:1).
About this color
#A66571 is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.085 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Mauve (#AE7181), ΔE 0.037 away. Black text reads best on it, at 4.72:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Mauve (#AE7181) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #A66571 |
| RGB | rgb(166, 101, 113) |
| HSL | hsl(349, 27%, 52%) |
| OKLCH | oklch(58.2% 0.085 8.1) |
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 #A66571 | 4.44:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #A66571 | 4.72:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #A66571 text on white | 4.44:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #A66571 text on black | 4.72:1 | AA | Lc -31.0 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F1E7E8
oklch(93.6% 0.011 10.3)
-
Step 200
200
#E7D4D6
oklch(88.6% 0.021 10.3)
-
Step 300
300
#D8B7BC
oklch(80.9% 0.038 7.7)
-
Step 400
400
#C39199
oklch(70.7% 0.061 8.1)
-
Step 500
500
#B37680
oklch(63.2% 0.078 8.8)
-
Step 600
600 (this color)
#A66571
oklch(58.2% 0.085 8.1)
-
Step 700
700
#874D58
oklch(49.2% 0.079 8.2)
-
Step 800
800
#6E3F48
oklch(42.7% 0.066 7.9)
-
Step 900
900
#59363C
oklch(37.7% 0.051 8.6)
-
Step 950
950
#342023
oklch(27% 0.031 9.5)
#A66571 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) | #707071 | 0.092 |
| Deuteranopia (no green cones) | #807C70 | 0.085 |
| Tritanopia (no blue cones) | #B15F69 | 0.023 |
| Achromatopsia (no color) | #777777 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66571
#A66571
oklch(58.2% 0.085 8.1)
- #308B84
#308B84
oklch(58.2% 0.085 187.9)
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 #A66571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mauve #AE7181 ΔE 0.037
- Dusky Rose #BA6873 ΔE 0.038
- Reddish Grey #997570 ΔE 0.047
- Pinkish Brown #B17261 ΔE 0.052
- Light Plum #9D5783 ΔE 0.056
- Clay #B66A50 ΔE 0.059
- Purple Grey #866F85 ΔE 0.060
- Dusty Rose #C0737A ΔE 0.061
Use #A66571 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.