#A66B68
Closest named color: Reddish Grey (#997570). oklch(59% 0.076 22.8), rgb(166, 107, 104).
Aa
Black text reads best on this color (4.92:1).
About this color
#A66B68 is a medium-dark, moderately saturated red. In OKLCH its lightness is 59%, its chroma 0.076 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Reddish Grey (#997570), ΔE 0.031 away. Black text reads best on it, at 4.92:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Reddish Grey (#997570) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #A66B68 |
| RGB | rgb(166, 107, 104) |
| HSL | hsl(3, 26%, 53%) |
| OKLCH | oklch(59% 0.076 22.8) |
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 #A66B68 | 4.26:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #A66B68 | 4.92:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #A66B68 text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #A66B68 text on black | 4.92:1 | AA | Lc -32.3 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E7E7
oklch(93.5% 0.01 17.3)
-
Step 200
200
#E6D5D3
oklch(88.6% 0.019 25.6)
-
Step 300
300
#D6B8B6
oklch(80.8% 0.035 22.4)
-
Step 400
400
#C19491
oklch(70.8% 0.055 22.9)
-
Step 500
500
#B07976
oklch(63.1% 0.07 22.7)
-
Step 600
600 (this color)
#A66B68
oklch(59% 0.076 22.8)
-
Step 700
700
#84504E
oklch(49% 0.07 22.3)
-
Step 800
800
#6C4240
oklch(42.8% 0.059 22.8)
-
Step 900
900
#583836
oklch(37.8% 0.046 23.4)
-
Step 950
950
#332120
oklch(27% 0.028 22.7)
#A66B68 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) | #777368 | 0.079 |
| Deuteranopia (no green cones) | #857F67 | 0.074 |
| Tritanopia (no blue cones) | #B2646A | 0.027 |
| Achromatopsia (no color) | #7A7A7A | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66B68
#A66B68
oklch(59% 0.076 22.8)
- #3D8B91
#3D8B91
oklch(59.1% 0.076 202.2)
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 #A66B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddish Grey #997570 ΔE 0.031
- Pinkish Brown #B17261 ΔE 0.032
- Mauve #AE7181 ΔE 0.039
- Dusky Rose #BA6873 ΔE 0.041
- Clay #B66A50 ΔE 0.041
- Mocha #9D7651 ΔE 0.053
- Earth #A2653E ΔE 0.054
- Dusty Rose #C0737A ΔE 0.057
Use #A66B68 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.