HSL(237, 40%, 20%)
Blue — Blue color
Adjust Color
Color Information
Color Name
Blue
Color Family
Blue
Warm / Cool
🔵 Cool
Temperature
9000K
CSS Class
bg-[hsl(237,40%,20%)]
Color Conversions
| Format | Value | CSS Usage | |
|---|---|---|---|
| HSL | hsl(237, 40%, 20%) | color: hsl(237, 40%, 20%) | |
| HEX | #1F2147 | color: #1F2147 | |
| RGB | rgb(31, 33, 71) | color: rgb(31, 33, 71) | |
| CMYK | cmyk(56%, 54%, 0%, 72%) | — | |
| HSV | hsv(237, 56%, 28%) | — | |
| HWB | hwb(237 12% 72%) | color: hwb(237 12% 72%) | |
| OKLCH | oklch(0.2682 0.0696 278.34) | color: oklch(0.2682 0.0696 278.34) | |
| Lab | lab(14.59 11.63 -24.18) | color: lab(14.59 11.63 -24.18) | |
| LCH | lch(14.59 26.83 295.69) | color: lch(14.59 26.83 295.69) |
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)
#20203E — rgb(32, 32, 62)
Deuteranopia (Green-blind)
#20203C — rgb(32, 32, 60)
Tritanopia (Blue-blind)
#1F3735 — rgb(31, 55, 53)
Tints & Shades
CSS Code Snippets
background
background-color: hsl(237, 40%, 20%);
text
color: hsl(237, 40%, 20%);
border
border: 2px solid hsl(237, 40%, 20%);
gradient light
background: linear-gradient(to right, hsl(237, 40%, 40%), hsl(237, 40%, 20%));
gradient dark
background: linear-gradient(to right, hsl(237, 40%, 20%), hsl(237, 40%, 0%))
hex
background-color: #1F2147;
tailwind
bg-[hsl(237,40%,20%)]
box shadow
box-shadow: 0 4px 6px -1px hsl(237, 40%, 20%, 0.4);
css variable
--color-primary: hsl(237, 40%, 20%);
Related Colors
Use Cases for Blue
Frequently Asked Questions
What are all the color codes for HSL(237, 40%, 20%)?
HEX: #1F2147 | RGB: rgb(31, 33, 71) | CMYK: 56%, 54%, 0%, 72% | HSV: 237°, 56%, 28%. Copy any format from the conversion table above.
What colors go well with #1F2147?
The complementary color is HSL(57, 40%, 20%). For a triadic harmony, use hues 237°, 357°, and 117°. For analogous combinations, try hues 207° and 267°. See the Color Harmony section above for complete palettes with previews.
How do I use HSL(237, 40%, 20%) in CSS?
As HSL: color: hsl(237, 40%, 20%); — As HEX: color: #1F2147; — As RGB: color: rgb(31, 33, 71); — Tailwind CSS: bg-[hsl(237,40%,20%)] — CSS variable: --color-primary: hsl(237, 40%, 20%);