HSL(231, 91%, 23%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(231,91%,23%)]

Color Conversions

Format Value CSS Usage
HSL hsl(231, 91%, 23%) color: hsl(231, 91%, 23%)
HEX #051570 color: #051570
RGB rgb(5, 21, 112) color: rgb(5, 21, 112)
CMYK cmyk(96%, 81%, 0%, 56%)
HSV hsv(231, 96%, 44%)
HWB hwb(231 2% 56%) color: hwb(231 2% 56%)
OKLCH oklch(0.2727 0.153 265.53) color: oklch(0.2727 0.153 265.53)
Lab lab(14.05 32.84 -52.6) color: lab(14.05 32.84 -52.6)
LCH lch(14.05 62.01 301.98) color: lch(14.05 62.01 301.98)

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 15.58:1
vs Black 1.35:1

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)

#0C0C5A — rgb(12, 12, 90)

Deuteranopia (Green-blind)

#0B0A55 — rgb(11, 10, 85)

Tritanopia (Blue-blind)

#064945 — rgb(6, 73, 69)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(231, 91%, 23%);

text

color: hsl(231, 91%, 23%);

border

border: 2px solid hsl(231, 91%, 23%);

gradient light

background: linear-gradient(to right, hsl(231, 91%, 43%), hsl(231, 91%, 23%));

gradient dark

background: linear-gradient(to right, hsl(231, 91%, 23%), hsl(231, 91%, 3%))

hex

background-color: #051570;

tailwind

bg-[hsl(231,91%,23%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(231, 91%, 23%, 0.4);

css variable

--color-primary: hsl(231, 91%, 23%);

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, 91%, 23%)?

HEX: #051570 | RGB: rgb(5, 21, 112) | CMYK: 96%, 81%, 0%, 56% | HSV: 231°, 96%, 44%. Copy any format from the conversion table above.

What colors go well with #051570?

The complementary color is HSL(51, 91%, 23%). 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, 91%, 23%) in CSS?

As HSL: color: hsl(231, 91%, 23%); — As HEX: color: #051570; — As RGB: color: rgb(5, 21, 112); — Tailwind CSS: bg-[hsl(231,91%,23%)] — CSS variable: --color-primary: hsl(231, 91%, 23%);