#A3B1CB
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.8% 0.041 262.9), rgb(163, 177, 203).
Aa
Black text reads best on this color (9.70:1).
About this color
#A3B1CB is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.041 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.029 away. Black text reads best on it, at 9.70:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.70:1 |
| White text | 2.16:1 |
Values
| HEX | #A3B1CB |
| RGB | rgb(163, 177, 203) |
| HSL | hsl(219, 28%, 72%) |
| OKLCH | oklch(75.8% 0.041 262.9) |
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 #A3B1CB | 2.16:1 | Fails | Lc -47.2 | Large or bold text, headings |
| Black text on #A3B1CB | 9.70:1 | AAA | Lc 61.4 | Content text, not long reading |
| #A3B1CB text on white | 2.16:1 | Fails | Lc 42.5 | Non-text elements, placeholder text |
| #A3B1CB text on black | 9.70:1 | AAA | Lc -59.7 | 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 300.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1D9E9
oklch(88.4% 0.024 264.4)
-
Step 300
300 (this color)
#A3B1CB
oklch(75.8% 0.041 262.9)
-
Step 400
400
#8BA1CA
oklch(70.7% 0.065 262.7)
-
Step 500
500
#6F89BC
oklch(63% 0.083 263.4)
-
Step 600
600
#5773A8
oklch(55.7% 0.089 262.5)
-
Step 700
700
#476090
oklch(49.1% 0.083 262.7)
-
Step 800
800
#3A4E75
oklch(42.5% 0.07 263)
-
Step 900
900
#32415F
oklch(37.6% 0.055 263.6)
-
Step 950
950
#1D2637
oklch(26.8% 0.034 262.7)
#A3B1CB 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) | #A9B2CC | 0.009 |
| Deuteranopia (no green cones) | #A5AFCA | 0.005 |
| Tritanopia (no blue cones) | #99B6B9 | 0.036 |
| Achromatopsia (no color) | #B0B0B0 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B1CB
#A3B1CB
oklch(75.8% 0.041 262.9)
- #BDAF94
#BDAF94
oklch(75.9% 0.041 83.8)
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 #A3B1CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.029
- French Gray #ADB5BD ΔE 0.029
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Cool Steel #97A7B3 ΔE 0.043
- Dark Gray #A9A9A9 ΔE 0.047
- Cloudy Blue #ACC2D9 ΔE 0.048
- Light Steel Blue #B0C4DE ΔE 0.056
- Cool Grey #95A3A6 ΔE 0.062
Use #A3B1CB 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.