#ACA1AA
Closest named color: Dark Gray (#A9A9A9). oklch(72.1% 0.018 331.7), rgb(172, 161, 170).
Aa
Black text reads best on this color (8.43:1).
About this color
#ACA1AA is a medium-light close to neutral grey. In OKLCH its lightness is 72%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Dark Gray (#A9A9A9), ΔE 0.023 away. Black text reads best on it, at 8.43:1.
| Hue family | Neutrals |
| Lightness | medium-light (72%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Dark Gray (#A9A9A9) |
| Black text | 8.43:1 |
| White text | 2.49:1 |
Values
| HEX | #ACA1AA |
| RGB | rgb(172, 161, 170) |
| HSL | hsl(311, 6%, 65%) |
| OKLCH | oklch(72.1% 0.018 331.7) |
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 #ACA1AA | 2.49:1 | Fails | Lc -54.0 | Large or bold text, headings |
| Black text on #ACA1AA | 8.43:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #ACA1AA text on white | 2.49:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #ACA1AA text on black | 8.43:1 | AAA | Lc -53.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EBE9EB
oklch(93.6% 0.003 325.6)
-
Step 200
200
#DCD8DB
oklch(88.6% 0.006 334)
-
Step 300
300
#C5BEC4
oklch(80.9% 0.011 330.2)
-
Step 400
400 (this color)
#ACA1AA
oklch(72.1% 0.018 331.7)
-
Step 500
500
#928590
oklch(63.2% 0.022 330.8)
-
Step 600
600
#7C6E7A
oklch(55.5% 0.025 330.6)
-
Step 700
700
#695C67
oklch(49.1% 0.024 331)
-
Step 800
800
#564B54
oklch(42.7% 0.02 332)
-
Step 900
900
#473F45
oklch(37.8% 0.015 334.5)
-
Step 950
950
#292529
oklch(27% 0.009 325.8)
#ACA1AA 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) | #A1A3AA | 0.016 |
| Deuteranopia (no green cones) | #A3A5AA | 0.016 |
| Tritanopia (no blue cones) | #ADA1A4 | 0.009 |
| Achromatopsia (no color) | #A4A4A4 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACA1AA
#ACA1AA
oklch(72.1% 0.018 331.7)
- #9DA89F
#9DA89F
oklch(72% 0.018 151)
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 #ACA1AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Gray #A9A9A9 ΔE 0.023
- Cool Steel #97A7B3 ΔE 0.031
- Cool Grey #95A3A6 ΔE 0.034
- Pewter #96A8A1 ΔE 0.040
- Cement #A5A391 ΔE 0.041
- Light Mauve #C292A1 ΔE 0.047
- Mushroom #BA9E88 ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.049
Use #ACA1AA 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.