#A66370
Closest named color: Dusky Rose (#BA6873). oklch(57.8% 0.088 7.6), rgb(166, 99, 112).
Aa
Black text reads best on this color (4.64:1).
About this color
#A66370 is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.088 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Dusky Rose (#BA6873), ΔE 0.040 away. Black text reads best on it, at 4.64:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Dusky Rose (#BA6873) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #A66370 |
| RGB | rgb(166, 99, 112) |
| HSL | hsl(348, 27%, 52%) |
| OKLCH | oklch(57.8% 0.088 7.6) |
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 #A66370 | 4.52:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #A66370 | 4.64:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #A66370 text on white | 4.52:1 | AA | Lc 71.2 | Content text, not long reading |
| #A66370 text on black | 4.64:1 | AA | Lc -30.4 | 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
#E7D3D6
oklch(88.4% 0.023 7.2)
-
Step 300
300
#D8B7BC
oklch(80.9% 0.038 7.7)
-
Step 400
400
#C49199
oklch(70.8% 0.063 8.3)
-
Step 500
500
#B47580
oklch(63.1% 0.08 8.2)
-
Step 600
600 (this color)
#A66370
oklch(57.8% 0.088 7.6)
-
Step 700
700
#884C58
oklch(49.1% 0.082 7.7)
-
Step 800
800
#6E3F48
oklch(42.7% 0.066 7.9)
-
Step 900
900
#5A353C
oklch(37.6% 0.054 7.7)
-
Step 950
950
#352023
oklch(27.1% 0.033 10.1)
#A66370 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) | #6E6F70 | 0.096 |
| Deuteranopia (no green cones) | #7F7B6F | 0.088 |
| Tritanopia (no blue cones) | #B15D68 | 0.023 |
| Achromatopsia (no color) | #767676 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66370
#A66370
oklch(57.8% 0.088 7.6)
- #2A8A83
#2A8A83
oklch(57.7% 0.088 188)
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 #A66370, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Rose #BA6873 ΔE 0.040
- Mauve #AE7181 ΔE 0.041
- Reddish Grey #997570 ΔE 0.051
- Light Plum #9D5783 ΔE 0.053
- Pinkish Brown #B17261 ΔE 0.056
- Dark Rose #B5485D ΔE 0.060
- Clay #B66A50 ΔE 0.061
- Purple Grey #866F85 ΔE 0.062
Use #A66370 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.