HSL(221, 100%, 23%)

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%,23%)]

Color Conversions

Format Value CSS Usage
HSL hsl(221, 100%, 23%) color: hsl(221, 100%, 23%)
HEX #002575 color: #002575
RGB rgb(0, 37, 117) color: rgb(0, 37, 117)
CMYK cmyk(100%, 68%, 0%, 54%)
HSV hsv(221, 100%, 46%)
HWB hwb(221 0% 54%) color: hwb(221 0% 54%)
OKLCH oklch(0.3054 0.1425 262.12) color: oklch(0.3054 0.1425 262.12)
Lab lab(18.4 23.78 -48.66) color: lab(18.4 23.78 -48.66)
LCH lch(18.4 54.16 296.04) color: lch(18.4 54.16 296.04)

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 13.8:1
vs Black 1.52:1

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)

#101062 — rgb(16, 16, 98)

Deuteranopia (Green-blind)

#0E0B5D — rgb(14, 11, 93)

Tritanopia (Blue-blind)

#02524F — rgb(2, 82, 79)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(221, 100%, 23%);

text

color: hsl(221, 100%, 23%);

border

border: 2px solid hsl(221, 100%, 23%);

gradient light

background: linear-gradient(to right, hsl(221, 100%, 43%), hsl(221, 100%, 23%));

gradient dark

background: linear-gradient(to right, hsl(221, 100%, 23%), hsl(221, 100%, 3%))

hex

background-color: #002575;

tailwind

bg-[hsl(221,100%,23%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(221, 100%, 23%, 0.4);

css variable

--color-primary: hsl(221, 100%, 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(221, 100%, 23%)?

HEX: #002575 | RGB: rgb(0, 37, 117) | CMYK: 100%, 68%, 0%, 54% | HSV: 221°, 100%, 46%. Copy any format from the conversion table above.

What colors go well with #002575?

The complementary color is HSL(41, 100%, 23%). 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%, 23%) in CSS?

As HSL: color: hsl(221, 100%, 23%); — As HEX: color: #002575; — As RGB: color: rgb(0, 37, 117); — Tailwind CSS: bg-[hsl(221,100%,23%)] — CSS variable: --color-primary: hsl(221, 100%, 23%);