HSL(251, 20%, 45%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(251,20%,45%)]

Color Conversions

Format Value CSS Usage
HSL hsl(251, 20%, 45%) color: hsl(251, 20%, 45%)
HEX #645C8A color: #645C8A
RGB rgb(100, 92, 138) color: rgb(100, 92, 138)
CMYK cmyk(28%, 33%, 0%, 46%) —
HSV hsv(250, 33%, 54%) —
HWB hwb(250 36% 46%) color: hwb(250 36% 46%)
OKLCH oklch(0.5013 0.0727 291.53) color: oklch(0.5013 0.0727 291.53)
Lab lab(41.53 13.99 -24.37) color: lab(41.53 13.99 -24.37)
LCH lch(41.53 28.1 299.86) color: lch(41.53 28.1 299.86)

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 6.11:1
vs Black 3.44:1

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)

#61607F — rgb(97, 96, 127)

Deuteranopia (Green-blind)

#61627C — rgb(97, 98, 124)

Tritanopia (Blue-blind)

#647674 — rgb(100, 118, 116)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(251, 20%, 45%);

text

color: hsl(251, 20%, 45%);

border

border: 2px solid hsl(251, 20%, 45%);

gradient light

background: linear-gradient(to right, hsl(251, 20%, 65%), hsl(251, 20%, 45%));

gradient dark

background: linear-gradient(to right, hsl(251, 20%, 45%), hsl(251, 20%, 25%))

hex

background-color: #645C8A;

tailwind

bg-[hsl(251,20%,45%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(251, 20%, 45%, 0.4);

css variable

--color-primary: hsl(251, 20%, 45%);

Related Colors

#737373

251,0,45

#5645A1

251,40,45

#38334D

251,20,25

#9A94B8

251,20,65

#5C5F8A

236,20,45

#5D5C8A

241,20,45

#6C5C8A

261,20,45

#705C8A

266,20,45

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(251, 20%, 45%)?

HEX: #645C8A | RGB: rgb(100, 92, 138) | CMYK: 28%, 33%, 0%, 46% | HSV: 250°, 33%, 54%. Copy any format from the conversion table above.

What colors go well with #645C8A?

The complementary color is HSL(71, 20%, 45%). For a triadic harmony, use hues 251°, 11°, and 131°. For analogous combinations, try hues 221° and 281°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(251, 20%, 45%) in CSS?

As HSL: color: hsl(251, 20%, 45%); — As HEX: color: #645C8A; — As RGB: color: rgb(100, 92, 138); — Tailwind CSS: bg-[hsl(251,20%,45%)] — CSS variable: --color-primary: hsl(251, 20%, 45%);