#A3B1CA
Closest named color: French Gray (#ADB5BD). oklch(75.8% 0.039 262.1), rgb(163, 177, 202).
Aa
Black text reads best on this color (9.69:1).
About this color
#A3B1CA is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.039 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.028 away. Black text reads best on it, at 9.69:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.69:1 |
| White text | 2.16:1 |
Values
| HEX | #A3B1CA |
| RGB | rgb(163, 177, 202) |
| HSL | hsl(218, 27%, 72%) |
| OKLCH | oklch(75.8% 0.039 262.1) |
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 #A3B1CA | 2.16:1 | Fails | Lc -47.3 | Large or bold text, headings |
| Black text on #A3B1CA | 9.69:1 | AAA | Lc 61.4 | Content text, not long reading |
| #A3B1CA text on white | 2.16:1 | Fails | Lc 42.6 | Non-text elements, placeholder text |
| #A3B1CA text on black | 9.69:1 | AAA | Lc -59.6 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B8C1D1
oklch(80.9% 0.025 262.1)
-
Step 400
400 (this color)
#A3B1CA
oklch(75.8% 0.039 262.1)
-
Step 500
500
#798AA8
oklch(63.1% 0.049 261.7)
-
Step 600
600
#627494
oklch(55.7% 0.054 261.8)
-
Step 700
700
#51617E
oklch(49.1% 0.051 262.1)
-
Step 800
800
#424F66
oklch(42.6% 0.042 261.7)
-
Step 900
900
#384253
oklch(37.7% 0.032 261)
-
Step 950
950
#212731
oklch(27.1% 0.021 260.6)
#A3B1CA 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) | #A9B2CB | 0.009 |
| Deuteranopia (no green cones) | #A5AFC9 | 0.005 |
| Tritanopia (no blue cones) | #99B6B9 | 0.035 |
| Achromatopsia (no color) | #B0B0B0 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B1CA
#A3B1CA
oklch(75.8% 0.039 262.1)
- #BDAE95
#BDAE95
oklch(75.7% 0.039 80.6)
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 #A3B1CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.028
- Light Grey Blue #9DBCD4 ΔE 0.029
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Cool Steel #97A7B3 ΔE 0.042
- Dark Gray #A9A9A9 ΔE 0.045
- Cloudy Blue #ACC2D9 ΔE 0.048
- Light Steel Blue #B0C4DE ΔE 0.056
- Cool Grey #95A3A6 ΔE 0.061
Use #A3B1CA 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.