#AAA3B7
Closest named color: Cool Steel (#97A7B3). oklch(72.8% 0.03 301.6), rgb(170, 163, 183).
Aa
Black text reads best on this color (8.63:1).
About this color
#AAA3B7 is a medium-light close to neutral grey. In OKLCH its lightness is 73%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Cool Steel (#97A7B3), ΔE 0.029 away. Black text reads best on it, at 8.63:1.
| Hue family | Neutrals |
| Lightness | medium-light (73%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.63:1 |
| White text | 2.43:1 |
Values
| HEX | #AAA3B7 |
| RGB | rgb(170, 163, 183) |
| HSL | hsl(261, 12%, 68%) |
| OKLCH | oklch(72.8% 0.03 301.6) |
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 #AAA3B7 | 2.43:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #AAA3B7 | 8.63:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #AAA3B7 text on white | 2.43:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #AAA3B7 text on black | 8.63:1 | AAA | Lc -54.1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#DAD8DF
oklch(88.6% 0.01 299.2)
-
Step 300
300
#C2BECB
oklch(80.9% 0.019 300)
-
Step 400
400 (this color)
#AAA3B7
oklch(72.8% 0.03 301.6)
-
Step 500
500
#8D849D
oklch(63% 0.038 301.7)
-
Step 600
600
#776E88
oklch(55.6% 0.041 300.9)
-
Step 700
700
#645C73
oklch(49.1% 0.037 300.9)
-
Step 800
800
#524B5E
oklch(42.7% 0.032 301.9)
-
Step 900
900
#443F4D
oklch(37.8% 0.024 301.5)
-
Step 950
950
#28252D
oklch(27.1% 0.015 302.4)
#AAA3B7 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) | #A0A6B8 | 0.015 |
| Deuteranopia (no green cones) | #A1A6B6 | 0.015 |
| Tritanopia (no blue cones) | #A8A6A9 | 0.025 |
| Achromatopsia (no color) | #A6A6A6 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAA3B7
#AAA3B7
oklch(72.8% 0.03 301.6)
- #A4AA96
#A4AA96
oklch(72.8% 0.029 120.7)
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 #AAA3B7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.029
- Dark Gray #A9A9A9 ΔE 0.030
- Cool Grey #95A3A6 ΔE 0.040
- French Gray #ADB5BD ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.048
- Pewter #96A8A1 ΔE 0.049
- Bluegrey #85A3B2 ΔE 0.051
- Cool Gray #8D99AE ΔE 0.052
Use #AAA3B7 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.