HSL(231, 21%, 29%)

Blue — Blue color

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Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(231,21%,29%)]

Color Conversions

Format Value CSS Usage
HSL hsl(231, 21%, 29%) color: hsl(231, 21%, 29%)
HEX #3A3F59 color: #3A3F59
RGB rgb(58, 63, 89) color: rgb(58, 63, 89)
CMYK cmyk(35%, 29%, 0%, 65%)
HSV hsv(230, 35%, 35%)
HWB hwb(230 23% 65%) color: hwb(230 23% 65%)
OKLCH oklch(0.3745 0.0451 275.61) color: oklch(0.3745 0.0451 275.61)
Lab lab(27.23 4.99 -16.2) color: lab(27.23 4.99 -16.2)
LCH lch(27.23 16.95 287.12) color: lch(27.23 16.95 287.12)

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 10.32:1
vs Black 2.04:1

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)

#3C3C53 — rgb(60, 60, 83)

Deuteranopia (Green-blind)

#3C3C51 — rgb(60, 60, 81)

Tritanopia (Blue-blind)

#3A4E4D — rgb(58, 78, 77)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(231, 21%, 29%);

text

color: hsl(231, 21%, 29%);

border

border: 2px solid hsl(231, 21%, 29%);

gradient light

background: linear-gradient(to right, hsl(231, 21%, 49%), hsl(231, 21%, 29%));

gradient dark

background: linear-gradient(to right, hsl(231, 21%, 29%), hsl(231, 21%, 9%))

hex

background-color: #3A3F59;

tailwind

bg-[hsl(231,21%,29%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(231, 21%, 29%, 0.4);

css variable

--color-primary: hsl(231, 21%, 29%);

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, 21%, 29%)?

HEX: #3A3F59 | RGB: rgb(58, 63, 89) | CMYK: 35%, 29%, 0%, 65% | HSV: 230°, 35%, 35%. Copy any format from the conversion table above.

What colors go well with #3A3F59?

The complementary color is HSL(51, 21%, 29%). 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, 21%, 29%) in CSS?

As HSL: color: hsl(231, 21%, 29%); — As HEX: color: #3A3F59; — As RGB: color: rgb(58, 63, 89); — Tailwind CSS: bg-[hsl(231,21%,29%)] — CSS variable: --color-primary: hsl(231, 21%, 29%);