#1B31B1
Blue
HEX
RGB
HSL
About #1B31B1 Blue
#1B31B1 is a blue color. In the RGB color model, it is composed of 27 red, 49 green, and 177 blue. In the HSL color space, it has a hue of 231°, saturation of 74%, 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 #1B31B1 in your CSS, SCSS, or Tailwind projects.
Color Properties
231°
Hue
74%
Saturation
40%
Lightness
Blue
Color Harmonies
Colors that work well with #1B31B1 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #1B31B1 against white and black backgrounds.
Aa#1B31B1 on White
Contrast Ratio9.9:1
AA ✓AA Large ✓AAA ✓
Aa#1B31B1 on Black
Contrast Ratio2.12:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #1B31B1 across different color formats.
| Format | Value |
|---|---|
| HEX | #1B31B1 |
| RGB | rgb(27, 49, 177) |
| HSL | hsl(231, 74%, 40%) |
| RGB Decimal | 27, 49, 177 |
| RGB Percent | 10.6%, 19.2%, 69.4% |
| CMYK (approx.) | 85%, 72%, 0%, 31% |
Related Palettes
12 palettes using #1B31B1 or similar colors