#A3A1B1
Closest named color: Cool Steel (#97A7B3). oklch(71.6% 0.023 291.5), rgb(163, 161, 177).
Aa
Black text reads best on this color (8.29:1).
About this color
#A3A1B1 is a medium-light close to neutral grey. In OKLCH its lightness is 72%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Cool Steel (#97A7B3), ΔE 0.021 away. Black text reads best on it, at 8.29:1.
| Hue family | Neutrals |
| Lightness | medium-light (72%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.29:1 |
| White text | 2.53:1 |
Values
| HEX | #A3A1B1 |
| RGB | rgb(163, 161, 177) |
| HSL | hsl(248, 9%, 66%) |
| OKLCH | oklch(71.6% 0.023 291.5) |
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 #A3A1B1 | 2.53:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #A3A1B1 | 8.29:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #A3A1B1 text on white | 2.53:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #A3A1B1 text on black | 8.29:1 | AAA | Lc -52.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9EC
oklch(93.6% 0.004 301.4)
-
Step 200
200
#D9D8DE
oklch(88.5% 0.008 293.9)
-
Step 300
300
#C0BFC9
oklch(80.8% 0.014 290.7)
-
Step 400
400 (this color)
#A3A1B1
oklch(71.6% 0.023 291.5)
-
Step 500
500
#89879A
oklch(63.2% 0.028 290.4)
-
Step 600
600
#737085
oklch(55.5% 0.032 291.9)
-
Step 700
700
#615E71
oklch(49.2% 0.03 292.5)
-
Step 800
800
#4F4D5C
oklch(42.8% 0.025 291.4)
-
Step 900
900
#41404B
oklch(37.7% 0.019 289.6)
-
Step 950
950
#26252C
oklch(26.8% 0.013 292.1)
#A3A1B1 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) | #9EA3B2 | 0.008 |
| Deuteranopia (no green cones) | #9EA2B1 | 0.007 |
| Tritanopia (no blue cones) | #A0A3A6 | 0.020 |
| Achromatopsia (no color) | #A3A3A3 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3A1B1
#A3A1B1
oklch(71.6% 0.023 291.5)
- #A3A595
#A3A595
oklch(71.6% 0.023 112.8)
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 #A3A1B1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.021
- Cool Grey #95A3A6 ΔE 0.028
- Dark Gray #A9A9A9 ΔE 0.030
- Bluey Grey #89A0B0 ΔE 0.036
- Bluegrey #85A3B2 ΔE 0.040
- Cool Gray #8D99AE ΔE 0.040
- Pewter #96A8A1 ΔE 0.040
- Cement #A5A391 ΔE 0.049
Use #A3A1B1 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.