HSL(221, 100%, 34%)

Blue — Blue color

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Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(221,100%,34%)]

Color Conversions

Format Value CSS Usage
HSL hsl(221, 100%, 34%) color: hsl(221, 100%, 34%)
HEX #0037AD color: #0037AD
RGB rgb(0, 55, 173) color: rgb(0, 55, 173)
CMYK cmyk(100%, 68%, 0%, 32%)
HSV hsv(221, 100%, 68%)
HWB hwb(221 0% 32%) color: hwb(221 0% 32%)
OKLCH oklch(0.3989 0.1939 262.61) color: oklch(0.3989 0.1939 262.61)
Lab lab(28.77 34.14 -66.25) color: lab(28.77 34.14 -66.25)
LCH lch(28.77 74.53 297.26) color: lch(28.77 74.53 297.26)

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 9.77:1
vs Black 2.15:1

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)

#181890 — rgb(24, 24, 144)

Deuteranopia (Green-blind)

#15118A — rgb(21, 17, 138)

Tritanopia (Blue-blind)

#037A75 — rgb(3, 122, 117)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(221, 100%, 34%);

text

color: hsl(221, 100%, 34%);

border

border: 2px solid hsl(221, 100%, 34%);

gradient light

background: linear-gradient(to right, hsl(221, 100%, 54%), hsl(221, 100%, 34%));

gradient dark

background: linear-gradient(to right, hsl(221, 100%, 34%), hsl(221, 100%, 14%))

hex

background-color: #0037AD;

tailwind

bg-[hsl(221,100%,34%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(221, 100%, 34%, 0.4);

css variable

--color-primary: hsl(221, 100%, 34%);

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(221, 100%, 34%)?

HEX: #0037AD | RGB: rgb(0, 55, 173) | CMYK: 100%, 68%, 0%, 32% | HSV: 221°, 100%, 68%. Copy any format from the conversion table above.

What colors go well with #0037AD?

The complementary color is HSL(41, 100%, 34%). For a triadic harmony, use hues 221°, 341°, and 101°. For analogous combinations, try hues 191° and 251°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(221, 100%, 34%) in CSS?

As HSL: color: hsl(221, 100%, 34%); — As HEX: color: #0037AD; — As RGB: color: rgb(0, 55, 173); — Tailwind CSS: bg-[hsl(221,100%,34%)] — CSS variable: --color-primary: hsl(221, 100%, 34%);