HSL(231, 72%, 50%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(231,72%,50%)]

Color Conversions

Format Value CSS Usage
HSL hsl(231, 72%, 50%) color: hsl(231, 72%, 50%)
HEX #243FDB color: #243FDB
RGB rgb(36, 63, 219) color: rgb(36, 63, 219)
CMYK cmyk(84%, 71%, 0%, 14%)
HSV hsv(231, 84%, 86%)
HWB hwb(231 14% 14%) color: hwb(231 14% 14%)
OKLCH oklch(0.4682 0.2355 267.22) color: oklch(0.4682 0.2355 267.22)
Lab lab(36.07 47.49 -81.14) color: lab(36.07 47.49 -81.14)
LCH lch(36.07 94.02 300.34) color: lch(36.07 94.02 300.34)

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 7.48:1
vs Black 2.81:1

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)

#3030B5 — rgb(48, 48, 181)

Deuteranopia (Green-blind)

#2E2CAC — rgb(46, 44, 172)

Tritanopia (Blue-blind)

#259791 — rgb(37, 151, 145)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(231, 72%, 50%);

text

color: hsl(231, 72%, 50%);

border

border: 2px solid hsl(231, 72%, 50%);

gradient light

background: linear-gradient(to right, hsl(231, 72%, 70%), hsl(231, 72%, 50%));

gradient dark

background: linear-gradient(to right, hsl(231, 72%, 50%), hsl(231, 72%, 30%))

hex

background-color: #243FDB;

tailwind

bg-[hsl(231,72%,50%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(231, 72%, 50%, 0.4);

css variable

--color-primary: hsl(231, 72%, 50%);

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(231, 72%, 50%)?

HEX: #243FDB | RGB: rgb(36, 63, 219) | CMYK: 84%, 71%, 0%, 14% | HSV: 231°, 84%, 86%. Copy any format from the conversion table above.

What colors go well with #243FDB?

The complementary color is HSL(51, 72%, 50%). For a triadic harmony, use hues 231°, 351°, and 111°. For analogous combinations, try hues 201° and 261°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(231, 72%, 50%) in CSS?

As HSL: color: hsl(231, 72%, 50%); — As HEX: color: #243FDB; — As RGB: color: rgb(36, 63, 219); — Tailwind CSS: bg-[hsl(231,72%,50%)] — CSS variable: --color-primary: hsl(231, 72%, 50%);