HSL(233, 72%, 43%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(233,72%,43%)]

Color Conversions

Format Value CSS Usage
HSL hsl(233, 72%, 43%) color: hsl(233, 72%, 43%)
HEX #1F31BD color: #1F31BD
RGB rgb(31, 49, 189) color: rgb(31, 49, 189)
CMYK cmyk(84%, 74%, 0%, 26%)
HSV hsv(233, 84%, 74%)
HWB hwb(233 12% 26%) color: hwb(233 12% 26%)
OKLCH oklch(0.4136 0.2147 267.91) color: oklch(0.4136 0.2147 267.91)
Lab lab(29.81 45.04 -74.02) color: lab(29.81 45.04 -74.02)
LCH lch(29.81 86.65 301.32) color: lch(29.81 86.65 301.32)

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 9.41:1
vs Black 2.23:1

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)

#27279B — rgb(39, 39, 155)

Deuteranopia (Green-blind)

#262493 — rgb(38, 36, 147)

Tritanopia (Blue-blind)

#20807B — rgb(32, 128, 123)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(233, 72%, 43%);

text

color: hsl(233, 72%, 43%);

border

border: 2px solid hsl(233, 72%, 43%);

gradient light

background: linear-gradient(to right, hsl(233, 72%, 63%), hsl(233, 72%, 43%));

gradient dark

background: linear-gradient(to right, hsl(233, 72%, 43%), hsl(233, 72%, 23%))

hex

background-color: #1F31BD;

tailwind

bg-[hsl(233,72%,43%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(233, 72%, 43%, 0.4);

css variable

--color-primary: hsl(233, 72%, 43%);

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(233, 72%, 43%)?

HEX: #1F31BD | RGB: rgb(31, 49, 189) | CMYK: 84%, 74%, 0%, 26% | HSV: 233°, 84%, 74%. Copy any format from the conversion table above.

What colors go well with #1F31BD?

The complementary color is HSL(53, 72%, 43%). For a triadic harmony, use hues 233°, 353°, and 113°. For analogous combinations, try hues 203° and 263°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(233, 72%, 43%) in CSS?

As HSL: color: hsl(233, 72%, 43%); — As HEX: color: #1F31BD; — As RGB: color: rgb(31, 49, 189); — Tailwind CSS: bg-[hsl(233,72%,43%)] — CSS variable: --color-primary: hsl(233, 72%, 43%);