HSL(237, 65%, 33%)

Blue — Blue color

Adjust Color

Color Information

Color Name

Blue

Color Family

Blue

Warm / Cool

🔵 Cool

Temperature

9000K

CSS Class

bg-[hsl(237,65%,33%)]

Color Conversions

Format Value CSS Usage
HSL hsl(237, 65%, 33%) color: hsl(237, 65%, 33%)
HEX #1D238B color: #1D238B
RGB rgb(29, 35, 139) color: rgb(29, 35, 139)
CMYK cmyk(79%, 75%, 0%, 45%) —
HSV hsv(237, 79%, 55%) —
HWB hwb(237 12% 45%) color: hwb(237 12% 45%)
OKLCH oklch(0.3365 0.1672 270.77) color: oklch(0.3365 0.1672 270.77)
Lab lab(21.31 35.66 -57.75) color: lab(21.31 35.66 -57.75)
LCH lch(21.31 67.87 301.69) color: lch(21.31 67.87 301.69)

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 12.61:1
vs Black 1.67:1

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)

#202072 — rgb(32, 32, 114)

Deuteranopia (Green-blind)

#1F1F6C — rgb(31, 31, 108)

Tritanopia (Blue-blind)

#1D5E5A — rgb(29, 94, 90)

Tints & Shades

Tints (Lighter →)

← Shades (Darker)

Saturation (0% → 100%)

CSS Code Snippets

background

background-color: hsl(237, 65%, 33%);

text

color: hsl(237, 65%, 33%);

border

border: 2px solid hsl(237, 65%, 33%);

gradient light

background: linear-gradient(to right, hsl(237, 65%, 53%), hsl(237, 65%, 33%));

gradient dark

background: linear-gradient(to right, hsl(237, 65%, 33%), hsl(237, 65%, 13%))

hex

background-color: #1D238B;

tailwind

bg-[hsl(237,65%,33%)]

box shadow

box-shadow: 0 4px 6px -1px hsl(237, 65%, 33%, 0.4);

css variable

--color-primary: hsl(237, 65%, 33%);

Related Colors

#2E327A

237,45,33

#0D149C

237,85,33

#0C0E37

237,65,13

#3941D5

237,65,53

#1D3E8B

222,65,33

#1D358B

227,65,33

#2A1D8B

247,65,33

#331D8B

252,65,33

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(237, 65%, 33%)?

HEX: #1D238B | RGB: rgb(29, 35, 139) | CMYK: 79%, 75%, 0%, 45% | HSV: 237°, 79%, 55%. Copy any format from the conversion table above.

What colors go well with #1D238B?

The complementary color is HSL(57, 65%, 33%). For a triadic harmony, use hues 237°, 357°, and 117°. For analogous combinations, try hues 207° and 267°. See the Color Harmony section above for complete palettes with previews.

How do I use HSL(237, 65%, 33%) in CSS?

As HSL: color: hsl(237, 65%, 33%); — As HEX: color: #1D238B; — As RGB: color: rgb(29, 35, 139); — Tailwind CSS: bg-[hsl(237,65%,33%)] — CSS variable: --color-primary: hsl(237, 65%, 33%);