#21A9C4
Blue
HEX
RGB
HSL
About #21A9C4 Blue
#21A9C4 is a blue color. In the RGB color model, it is composed of 33 red, 169 green, and 196 blue. In the HSL color space, it has a hue of 190°, saturation of 71%, and lightness of 45%.
This color has a medium lightness value, making it a balanced tone ideal for both text and UI elements. With high saturation, it appears vibrant and eye-catching.
CSS Code
Use #21A9C4 in your CSS, SCSS, or Tailwind projects.
Color Properties
190°
Hue
71%
Saturation
45%
Lightness
Blue
Color Harmonies
Colors that work well with #21A9C4 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #21A9C4 against white and black backgrounds.
Aa#21A9C4 on White
Contrast Ratio2.79:1
AA ✗AA Large ✗AAA ✗
Aa#21A9C4 on Black
Contrast Ratio7.54:1
AA ✓AA Large ✓AAA ✓
Color Conversion Table
Complete conversion of #21A9C4 across different color formats.
| Format | Value |
|---|---|
| HEX | #21A9C4 |
| RGB | rgb(33, 169, 196) |
| HSL | hsl(190, 71%, 45%) |
| RGB Decimal | 33, 169, 196 |
| RGB Percent | 12.9%, 66.3%, 76.9% |
| CMYK (approx.) | 83%, 14%, 0%, 23% |
Related Palettes
12 palettes using #21A9C4 or similar colors