HSL(210, 20%, 31%)
Blue — Blue color
Adjust Color
Color Information
Color Name
Blue
Color Family
Blue
Warm / Cool
🔵 Cool
Temperature
9000K
CSS Class
bg-[hsl(210,20%,31%)]
Color Conversions
| Format | Value | CSS Usage | |
|---|---|---|---|
| HSL | hsl(210, 20%, 31%) | color: hsl(210, 20%, 31%) | |
| HEX | #3F4F5F | color: #3F4F5F | |
| RGB | rgb(63, 79, 95) | color: rgb(63, 79, 95) | |
| CMYK | cmyk(34%, 17%, 0%, 63%) | — | |
| HSV | hsv(210, 34%, 37%) | — | |
| HWB | hwb(210 24% 63%) | color: hwb(210 24% 63%) | |
| OKLCH | oklch(0.4204 0.0336 248.63) | color: oklch(0.4204 0.0336 248.63) | |
| Lab | lab(32.86 -1.93 -11.38) | color: lab(32.86 -1.93 -11.38) | |
| LCH | lch(32.86 11.54 260.37) | color: lch(32.86 11.54 260.37) |
Color Theory
Accessibility (WCAG)
White text on color
Black text on color
Colored text
Contrast Ratios
AA Normal (4.5:1)
AA Large (3:1)
AAA Normal (7:1)
Best text on this color: white
Color Blindness Simulation
Protanopia (Red-blind)
#46465B — rgb(70, 70, 91)
Deuteranopia (Green-blind)
#45445A — rgb(69, 68, 90)
Tritanopia (Blue-blind)
#405857 — rgb(64, 88, 87)
Tints & Shades
CSS Code Snippets
background
background-color: hsl(210, 20%, 31%);
text
color: hsl(210, 20%, 31%);
border
border: 2px solid hsl(210, 20%, 31%);
gradient light
background: linear-gradient(to right, hsl(210, 20%, 51%), hsl(210, 20%, 31%));
gradient dark
background: linear-gradient(to right, hsl(210, 20%, 31%), hsl(210, 20%, 11%))
hex
background-color: #3F4F5F;
tailwind
bg-[hsl(210,20%,31%)]
box shadow
box-shadow: 0 4px 6px -1px hsl(210, 20%, 31%, 0.4);
css variable
--color-primary: hsl(210, 20%, 31%);
Related Colors
Use Cases for Blue
Frequently Asked Questions
What are all the color codes for HSL(210, 20%, 31%)?
HEX: #3F4F5F | RGB: rgb(63, 79, 95) | CMYK: 34%, 17%, 0%, 63% | HSV: 210°, 34%, 37%. Copy any format from the conversion table above.
What colors go well with #3F4F5F?
The complementary color is HSL(30, 20%, 31%). For a triadic harmony, use hues 210°, 330°, and 90°. For analogous combinations, try hues 180° and 240°. See the Color Harmony section above for complete palettes with previews.
How do I use HSL(210, 20%, 31%) in CSS?
As HSL: color: hsl(210, 20%, 31%); — As HEX: color: #3F4F5F; — As RGB: color: rgb(63, 79, 95); — Tailwind CSS: bg-[hsl(210,20%,31%)] — CSS variable: --color-primary: hsl(210, 20%, 31%);