#A66E70
Closest named color: Reddish Grey (#997570). oklch(59.8% 0.072 17.1), rgb(166, 110, 112).
Aa
Black text reads best on this color (5.08:1).
About this color
#A66E70 is a medium-dark, moderately saturated red. In OKLCH its lightness is 60%, its chroma 0.072 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Reddish Grey (#997570), ΔE 0.027 away. Black text reads best on it, at 5.08:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Reddish Grey (#997570) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #A66E70 |
| RGB | rgb(166, 110, 112) |
| HSL | hsl(358, 24%, 54%) |
| OKLCH | oklch(59.8% 0.072 17.1) |
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 #A66E70 | 4.12:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #A66E70 | 5.08:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #A66E70 text on white | 4.12:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #A66E70 text on black | 5.08:1 | AA | Lc -33.4 | 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 500.
-
Step 50
50
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E7
oklch(93.6% 0.011 17.4)
-
Step 200
200
#E6D4D4
oklch(88.5% 0.02 17.5)
-
Step 300
300
#D6B8B8
oklch(80.8% 0.035 17.9)
-
Step 400
400
#C19394
oklch(70.7% 0.056 17.1)
-
Step 500
500 (this color)
#A66E70
oklch(59.8% 0.072 17.1)
-
Step 600
600
#9C6063
oklch(55.6% 0.078 16.7)
-
Step 700
700
#854F52
oklch(49.1% 0.073 16.5)
-
Step 800
800
#6C4143
oklch(42.7% 0.06 16.9)
-
Step 900
900
#583739
oklch(37.7% 0.047 15.6)
-
Step 950
950
#342121
oklch(27.2% 0.03 19.2)
#A66E70 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) | #787670 | 0.077 |
| Deuteranopia (no green cones) | #86816F | 0.071 |
| Tritanopia (no blue cones) | #B1686F | 0.023 |
| Achromatopsia (no color) | #7D7D7D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66E70
#A66E70
oklch(59.8% 0.072 17.1)
- #458D8E
#458D8E
oklch(59.8% 0.072 196.6)
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 #A66E70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddish Grey #997570 ΔE 0.027
- Mauve #AE7181 ΔE 0.029
- Pinkish Brown #B17261 ΔE 0.033
- Dusky Rose #BA6873 ΔE 0.038
- Clay #B66A50 ΔE 0.048
- Dusty Rose #C0737A ΔE 0.051
- English Lavender #9D8189 ΔE 0.052
- Mocha #9D7651 ΔE 0.057
Use #A66E70 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.