HSL(221, 17%, 48%)

Blue — Blue color

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Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

N/A

CSS Class

bg-[hsl(221,17%,48%)]

Color Conversions

Format Value CSS Usage
HSL hsl(221, 17%, 48%) color: hsl(221, 17%, 48%)
HEX #66738F color: #66738F
RGB rgb(102, 115, 143) color: rgb(102, 115, 143)
CMYK cmyk(29%, 20%, 0%, 44%)
HSV hsv(221, 29%, 56%)
HWB hwb(221 40% 44%) color: hwb(221 40% 44%)
OKLCH oklch(0.5553 0.0464 265.4) color: oklch(0.5553 0.0464 265.4)
Lab lab(48.35 1.94 -16.85) color: lab(48.35 1.94 -16.85)
LCH lch(48.35 16.96 276.57) color: lch(48.35 16.96 276.57)

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 4.76:1
vs Black 4.41:1

AA Normal (4.5:1)

on White: PASS ✓ on Black: FAIL ✗

AA Large (3:1)

on White: PASS ✓ on Black: PASS ✓

AAA Normal (7:1)

on White: FAIL ✗

Best text on this color: white

Color Blindness Simulation

Protanopia (Red-blind)

#6C6C88 — rgb(108, 108, 136)

Deuteranopia (Green-blind)

#6B6A87 — rgb(107, 106, 135)

Tritanopia (Blue-blind)

#678382 — rgb(103, 131, 130)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(221, 17%, 48%);

text

color: hsl(221, 17%, 48%);

border

border: 2px solid hsl(221, 17%, 48%);

gradient light

background: linear-gradient(to right, hsl(221, 17%, 68%), hsl(221, 17%, 48%));

gradient dark

background: linear-gradient(to right, hsl(221, 17%, 48%), hsl(221, 17%, 28%))

hex

background-color: #66738F;

tailwind

bg-[hsl(221,17%,48%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(221, 17%, 48%, 0.4);

css variable

--color-primary: hsl(221, 17%, 48%);

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, 17%, 48%)?

HEX: #66738F | RGB: rgb(102, 115, 143) | CMYK: 29%, 20%, 0%, 44% | HSV: 221°, 29%, 56%. Copy any format from the conversion table above.

What colors go well with #66738F?

The complementary color is HSL(41, 17%, 48%). 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, 17%, 48%) in CSS?

As HSL: color: hsl(221, 17%, 48%); — As HEX: color: #66738F; — As RGB: color: rgb(102, 115, 143); — Tailwind CSS: bg-[hsl(221,17%,48%)] — CSS variable: --color-primary: hsl(221, 17%, 48%);