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Light Blue vs Sky Blue: What's the Difference?

The main difference between Light Blue and Sky Blue is brightness and saturation: both are cyan shades, but Light Blue is lighter and Sky Blue is more saturated. Light Blue (#ADD8E6) has an HSL of 195°, 53%, 79%, whereas Sky Blue (#87CEEB) sits at 197°, 71%, 73%.

Light Blue#ADD8E6
Sky Blue#87CEEB
#ADD8E6Blended: #9AD3E9#87CEEB

Light Blue vs Sky Blue: Key Differences at a Glance

Aspect Light Blue Sky Blue
BrightnessLight (L=79%) — airy, soft, approachableLight (L=73%) — airy, soft, approachable
SaturationModerately saturated (S=53%) — balanced in intensityVivid (S=71%) — bright, energetic, eye-catching
Hue familyCyanCyan
TemperatureCoolCool
Hex code#ADD8E6#87CEEB
RGB173, 216, 230135, 206, 235

Can you use Light Blue and Sky Blue together?

Sky Blue text on Light Blue
Light Blue text on Sky Blue
Contrast Ratio:1.14:1Insufficient Contrast

How to Tell Light Blue and Sky Blue Apart

  • Check saturation: Sky Blue looks more vivid and saturated.
  • Compare them on a white background to see true saturation, and on black to see true lightness.

When to Use Light Blue vs Sky Blue in Design

Use Light Blue for:
Cool, techy, digital branding
Water, ice, cleaning products
Fresh modern UI accents
Summer and tropical themes
Youthful playful design
Use Sky Blue for:
Cool, techy, digital branding
Water, ice, cleaning products
Fresh modern UI accents
Summer and tropical themes
Youthful playful design

Light Blue and Sky Blue Hex Codes, RGB & HSL

Light Blue#ADD8E6

Light Blue (#ADD8E6) is a light, moderately saturated cyan with a cool undertone — it feels airy, soft, approachable and balanced in intensity.

HEX
RGB
HSL
HSV
CMYK
PANTONE
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Sky Blue#87CEEB

Sky Blue (#87CEEB) is a light, vivid cyan with a cool undertone — it feels airy, soft, approachable and bright, energetic, eye-catching.

HEX
RGB
HSL
HSV
CMYK
PANTONE
Shades
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Light Blue and Sky Blue WCAG Contrast Ratios

Text legibility depends on the contrast ratio between foreground and background. WCAG 2.1 AA requires at least 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Use these numbers to choose accessible combinations for your design.

Sample text preview
Light Blue text on white
1.53:1Fail
Sample text preview
Light Blue text on black
13.74:1AAA
Sample text preview
Sky Blue text on white
1.74:1Fail
Sample text preview
Sky Blue text on black
12.06:1AAA
Sample text preview
Light Blue text on Sky Blue
1.14:1Fail
Sample text preview
Sky Blue text on Light Blue
1.14:1Fail

Explore Light Blue and Sky Blue individually

Each color has a dedicated page with shades, tints, CSS name, pairings, and color psychology.

Sky Blue color page#87CEEB · shades, tints, pairings

More Light Blue and Sky Blue Comparisons

Light Blue vs Sky Blue FAQ

What is the difference between light blue and sky blue?+
The main difference between Light Blue and Sky Blue is brightness and saturation: both are cyan shades, but Light Blue is lighter and Sky Blue is more saturated. Light Blue (#ADD8E6) has an HSL of 195°, 53%, 79%, whereas Sky Blue (#87CEEB) sits at 197°, 71%, 73%.
Is light blue darker than sky blue?+
No. Sky Blue is the darker of the two at 73% lightness, while Light Blue sits higher at 79%.
Are light blue and sky blue the same color?+
No. Light Blue is #ADD8E6 and Sky Blue is #87CEEB. They differ by 2° in hue, 6% in lightness, and 18% in saturation.
Which is more saturated, light blue or sky blue?+
Sky Blue is more saturated. In HSL, Light Blue has 53% saturation and Sky Blue has 71% — Sky Blue is the more vivid of the two, while Light Blue reads as more muted.
Is light blue warm or cool?+
Light Blue (#ADD8E6) is a cool cyan. Its hue sits at 195° on the color wheel, which places it in the cool range.
Is sky blue warm or cool?+
Sky Blue (#87CEEB) is a cool cyan. Its hue sits at 197° on the color wheel, which places it in the cool range.
Can you use light blue and sky blue together?+
Yes. Both light blue and sky blue are cyan shades, so they pair naturally in a monochromatic palette. Use sky blue as the dominant color and light blue as the accent or highlight.
What color family does light blue belong to?+
Light Blue belongs to the cyan family. Its HSL is 195°, 53%, 79% — a cool tone within the broader cyan group.
What is the hex code for light blue?+
The hex code for Light Blue is #ADD8E6. In RGB, that's rgb(173, 216, 230), and in HSL it's hsl(195, 53%, 79%).
What is the hex code for sky blue?+
The hex code for Sky Blue is #87CEEB. In RGB, that's rgb(135, 206, 235), and in HSL it's hsl(197, 71%, 73%).