HSL(237, 74%, 55%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(237,74%,55%)]

Color Conversions

Format Value CSS Usage
HSL hsl(237, 74%, 55%) color: hsl(237, 74%, 55%)
HEX #3740E1 color: #3740E1
RGB rgb(55, 64, 225) color: rgb(55, 64, 225)
CMYK cmyk(76%, 72%, 0%, 12%)
HSV hsv(237, 76%, 88%)
HWB hwb(237 21% 12%) color: hwb(237 21% 12%)
OKLCH oklch(0.4838 0.2371 271.07) color: oklch(0.4838 0.2371 271.07)
Lab lab(37.69 50.28 -81.87) color: lab(37.69 50.28 -81.87)
LCH lch(37.69 96.08 301.56) color: lch(37.69 96.08 301.56)

Color Theory

Complementary

Triadic

Analogous

Tetradic (Square)

Split-Complementary

Accessibility (WCAG)

White text on color

Black text on color

Color on white bg

Colored text

Contrast Ratios

vs White 7.04:1
vs Black 2.98:1

AA Normal (4.5:1)

on White: PASS ✓ on Black: FAIL ✗

AA Large (3:1)

on White: PASS ✓ on Black: FAIL ✗

AAA Normal (7:1)

on White: PASS ✓

Best text on this color: white

Color Blindness Simulation

Protanopia (Red-blind)

#3B3BBA — rgb(59, 59, 186)

Deuteranopia (Green-blind)

#3A3AB1 — rgb(58, 58, 177)

Tritanopia (Blue-blind)

#379B95 — rgb(55, 155, 149)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(237, 74%, 55%);

text

color: hsl(237, 74%, 55%);

border

border: 2px solid hsl(237, 74%, 55%);

gradient light

background: linear-gradient(to right, hsl(237, 74%, 75%), hsl(237, 74%, 55%));

gradient dark

background: linear-gradient(to right, hsl(237, 74%, 55%), hsl(237, 74%, 35%))

hex

background-color: #3740E1;

tailwind

bg-[hsl(237,74%,55%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(237, 74%, 55%, 0.4);

css variable

--color-primary: hsl(237, 74%, 55%);

Related Colors

Use Cases for Blue

Corporate branding Trust signals Tech products Social media Primary buttons

Frequently Asked Questions

What are all the color codes for HSL(237, 74%, 55%)?

HEX: #3740E1 | RGB: rgb(55, 64, 225) | CMYK: 76%, 72%, 0%, 12% | HSV: 237°, 76%, 88%. Copy any format from the conversion table above.

What colors go well with #3740E1?

The complementary color is HSL(57, 74%, 55%). 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, 74%, 55%) in CSS?

As HSL: color: hsl(237, 74%, 55%); — As HEX: color: #3740E1; — As RGB: color: rgb(55, 64, 225); — Tailwind CSS: bg-[hsl(237,74%,55%)] — CSS variable: --color-primary: hsl(237, 74%, 55%);