HSL(233, 38%, 40%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(233,38%,40%)]

Color Conversions

Format Value CSS Usage
HSL hsl(233, 38%, 40%) color: hsl(233, 38%, 40%)
HEX #3F488D color: #3F488D
RGB rgb(63, 72, 141) color: rgb(63, 72, 141)
CMYK cmyk(55%, 49%, 0%, 45%) —
HSV hsv(233, 55%, 55%) —
HWB hwb(233 25% 45%) color: hwb(233 25% 45%)
OKLCH oklch(0.4305 0.1133 275.01) color: oklch(0.4305 0.1133 275.01)
Lab lab(33.17 17.43 -39.6) color: lab(33.17 17.43 -39.6)
LCH lch(33.17 43.27 293.76) color: lch(33.17 43.27 293.76)

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 8.32:1
vs Black 2.52:1

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)

#43437C — rgb(67, 67, 124)

Deuteranopia (Green-blind)

#424278 — rgb(66, 66, 120)

Tritanopia (Blue-blind)

#3F6F6C — rgb(63, 111, 108)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(233, 38%, 40%);

text

color: hsl(233, 38%, 40%);

border

border: 2px solid hsl(233, 38%, 40%);

gradient light

background: linear-gradient(to right, hsl(233, 38%, 60%), hsl(233, 38%, 40%));

gradient dark

background: linear-gradient(to right, hsl(233, 38%, 40%), hsl(233, 38%, 20%))

hex

background-color: #3F488D;

tailwind

bg-[hsl(233,38%,40%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(233, 38%, 40%, 0.4);

css variable

--color-primary: hsl(233, 38%, 40%);

Related Colors

#545878

233,18,40

#2B39A1

233,58,40

#202446

233,38,20

#727BC0

233,38,60

#3F5C8D

218,38,40

#3F558D

223,38,40

#433F8D

243,38,40

#4A3F8D

248,38,40

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(233, 38%, 40%)?

HEX: #3F488D | RGB: rgb(63, 72, 141) | CMYK: 55%, 49%, 0%, 45% | HSV: 233°, 55%, 55%. Copy any format from the conversion table above.

What colors go well with #3F488D?

The complementary color is HSL(53, 38%, 40%). For a triadic harmony, use hues 233°, 353°, and 113°. For analogous combinations, try hues 203° and 263°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(233, 38%, 40%) in CSS?

As HSL: color: hsl(233, 38%, 40%); — As HEX: color: #3F488D; — As RGB: color: rgb(63, 72, 141); — Tailwind CSS: bg-[hsl(233,38%,40%)] — CSS variable: --color-primary: hsl(233, 38%, 40%);