#A3AEC7
Closest named color: French Gray (#ADB5BD). oklch(75% 0.038 266.6), rgb(163, 174, 199).
Aa
Black text reads best on this color (9.43:1).
About this color
#A3AEC7 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.038 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.031 away. Black text reads best on it, at 9.43:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.43:1 |
| White text | 2.22:1 |
Values
| HEX | #A3AEC7 |
| RGB | rgb(163, 174, 199) |
| HSL | hsl(222, 24%, 71%) |
| OKLCH | oklch(75% 0.038 266.6) |
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 #A3AEC7 | 2.22:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #A3AEC7 | 9.43:1 | AAA | Lc 60.1 | Content text, not long reading |
| #A3AEC7 text on white | 2.22:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #A3AEC7 text on black | 9.43:1 | AAA | Lc -58.3 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D1
oklch(81% 0.024 264.4)
-
Step 400
400 (this color)
#A3AEC7
oklch(75% 0.038 266.6)
-
Step 500
500
#7C89A8
oklch(63.1% 0.049 267.1)
-
Step 600
600
#657393
oklch(55.6% 0.053 266.3)
-
Step 700
700
#54607D
oklch(49% 0.049 267.1)
-
Step 800
800
#454F66
oklch(42.8% 0.04 266.4)
-
Step 900
900
#3A4153
oklch(37.6% 0.032 268.2)
-
Step 950
950
#222631
oklch(27% 0.021 269.3)
#A3AEC7 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) | #A7AFC8 | 0.006 |
| Deuteranopia (no green cones) | #A3ACC6 | 0.005 |
| Tritanopia (no blue cones) | #9AB3B6 | 0.035 |
| Achromatopsia (no color) | #AEAEAE | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3AEC7
#A3AEC7
oklch(75% 0.038 266.6)
- #B9AD93
#B9AD93
oklch(75.1% 0.039 86.2)
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 #A3AEC7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.031
- Cool Steel #97A7B3 ΔE 0.036
- Light Grey Blue #9DBCD4 ΔE 0.037
- Dark Gray #A9A9A9 ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.050
- Cool Grey #95A3A6 ΔE 0.055
- Cloudy Blue #ACC2D9 ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.058
Use #A3AEC7 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.