#AAA1B3
Closest named color: Cool Steel (#97A7B3). oklch(72.2% 0.028 308), rgb(170, 161, 179).
Aa
Black text reads best on this color (8.45:1).
About this color
#AAA1B3 is a medium-light close to neutral grey. In OKLCH its lightness is 72%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Cool Steel (#97A7B3), ΔE 0.030 away. Black text reads best on it, at 8.45:1.
| Hue family | Neutrals |
| Lightness | medium-light (72%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.45:1 |
| White text | 2.48:1 |
Values
| HEX | #AAA1B3 |
| RGB | rgb(170, 161, 179) |
| HSL | hsl(270, 11%, 67%) |
| OKLCH | oklch(72.2% 0.028 308) |
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 #AAA1B3 | 2.48:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #AAA1B3 | 8.45:1 | AAA | Lc 55.2 | Large or bold text, headings |
| #AAA1B3 text on white | 2.48:1 | Fails | Lc 48.8 | Large or bold text, headings |
| #AAA1B3 text on black | 8.45:1 | AAA | Lc -53.2 | 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
#EBE9EC
oklch(93.6% 0.005 314.8)
-
Step 200
200
#DBD7DE
oklch(88.4% 0.01 311.2)
-
Step 300
300
#C4BEC9
oklch(81% 0.017 310.1)
-
Step 400
400 (this color)
#AAA1B3
oklch(72.2% 0.028 308)
-
Step 500
500
#8F849A
oklch(63% 0.035 307.8)
-
Step 600
600
#796E85
oklch(55.6% 0.037 306.8)
-
Step 700
700
#665C71
oklch(49.2% 0.035 306.6)
-
Step 800
800
#534B5C
oklch(42.7% 0.029 306.4)
-
Step 900
900
#453E4B
oklch(37.6% 0.024 309.4)
-
Step 950
950
#28252C
oklch(27.1% 0.013 304.9)
#AAA1B3 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) | #9EA4B4 | 0.018 |
| Deuteranopia (no green cones) | #A0A4B2 | 0.016 |
| Tritanopia (no blue cones) | #A9A3A7 | 0.020 |
| Achromatopsia (no color) | #A4A4A4 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAA1B3
#AAA1B3
oklch(72.2% 0.028 308)
- #A0A997
#A0A997
oklch(72.2% 0.027 128.9)
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 #AAA1B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.030
- Dark Gray #A9A9A9 ΔE 0.030
- Cool Grey #95A3A6 ΔE 0.038
- Bluey Grey #89A0B0 ΔE 0.046
- Pewter #96A8A1 ΔE 0.047
- Cool Gray #8D99AE ΔE 0.049
- Light Mauve #C292A1 ΔE 0.050
- Bluegrey #85A3B2 ΔE 0.050
Use #AAA1B3 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.