#1551B7
Blue
HEX
RGB
HSL
About #1551B7 Blue
#1551B7 is a blue color. In the RGB color model, it is composed of 21 red, 81 green, and 183 blue. In the HSL color space, it has a hue of 218°, saturation of 79%, and lightness of 40%.
This color has a low lightness value, making it a dark color great for text and bold accents. With high saturation, it appears vibrant and eye-catching.
CSS Code
Use #1551B7 in your CSS, SCSS, or Tailwind projects.
Color Properties
218°
Hue
79%
Saturation
40%
Lightness
Blue
Color Harmonies
Colors that work well with #1551B7 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #1551B7 against white and black backgrounds.
Aa#1551B7 on White
Contrast Ratio7.26:1
AA ✓AA Large ✓AAA ✓
Aa#1551B7 on Black
Contrast Ratio2.89:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #1551B7 across different color formats.
| Format | Value |
|---|---|
| HEX | #1551B7 |
| RGB | rgb(21, 81, 183) |
| HSL | hsl(218, 79%, 40%) |
| RGB Decimal | 21, 81, 183 |
| RGB Percent | 8.2%, 31.8%, 71.8% |
| CMYK (approx.) | 89%, 56%, 0%, 28% |
Related Palettes
12 palettes using #1551B7 or similar colors