#3F183B Color

#3F183B is rgb(63, 24, 59) in RGB, hsl(306, 45%, 17%) in HSL, and about cmyk(0%, 62%, 6%, 75%) in CMYK. It has no registered color name of its own — the closest is Dark Purple (#301934), clearly related but distinguishable side by side at ΔE 8.09. White text is the more readable choice on this background.

#3F183B

HEX#3F183B

RGBrgb(63, 24, 59)

HSLhsl(306, 45%, 17%)

HSVhsv(306, 62%, 25%)

CMYKcmyk(0%, 62%, 6%, 75%)

OKLCHoklch(28.3% 0.08 331.5)

LABlab(15.62% 23.45 -13.74)

LCHlch(15.62% 27.18 329.62)

What #3F183B Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #3F183B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Dark Purple#301934ΔE 8.09 Japanese Violet#5B3256ΔE 11.61 Dark Byzantium#5D3954ΔE 14.66 Medium Violet#65315FΔE 14.74 Russian Violet#32174DΔE 14.9 English Violet#563C5CΔE 15.37

Browse the full index of named colors A-Z or every pink in the library.

#3F183B Channel Values

How #3F183B breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 63 · G 24 · B 59	8-bit channels as sent to the display
HSL	H 306° · S 45% · L 17%	Easiest model for building lighter and darker variants
HSV	H 306° · S 62% · V 25%	Matches the picker in most design tools
CMYK	C 0% · M 62% · Y 6% · K 75%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	14.94:1 vs white · 1.41:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #3F183B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text14.94:1AA normal AA large AAA normal

Fails AABlack text1.41:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #3F183B in the contrast checker.

Colors That Go With #3F183B

Pairings derived from color-wheel relationships. The complementary color sits opposite #3F183B; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #3F183B

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #3F183B.

How #3F183B Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#3F183B

Protanopia#22223B

Protanomaly#301E3B

Deuteranopia#29293A

Deuteranomaly#33233B

Tritanopia#3C1F1F

Tritanomaly#3D1C2C

Achromatopsia#272727

Test a full palette in the color blindness simulator.

Using #3F183B in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-3f183b: #3F183B;

CSS backgroundbackground-color: #3F183B;

Tailwind configcolors: { 'color-3f183b': '#3F183B' }

SwiftUIColor(red: 0.247, green: 0.094, blue: 0.231)

Android XML<color name="color_3f183b">#3F183B</color>

SVG fillfill="#3F183B"

More Pink Colors

#3F183B sits in the pink family. These are its neighbours across that family's full range, each with its own breakdown.

200e15 fff5ff 240024 fff5f8 2e051f fff0ff 2f1d2f fff0f6 301934 fff0f5 330033 ffe0f0 57001d 754875 940094 a800b7 c43162 d07cd0 e0115f e936a7 f38fa9 fb64b6 ff0a85 ff70b8

#3F183B Frequently Asked Questions

What color is #3F183B?

#3F183B is a darkest pink — rgb(63, 24, 59) in RGB and hsl(306, 45%, 17%) in HSL. It carries no registered color name of its own; the closest named color is Dark Purple (#301934), which is clearly related but distinguishable side by side at a CIE76 distance of 8.09.

What is the RGB value of #3F183B?

#3F183B is rgb(63, 24, 59) — red 63, green 24, and blue 59 on the 0-255 scale.

What is the CMYK value of #3F183B?

#3F183B converts to approximately cmyk(0%, 62%, 6%, 75%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #3F183B be black or white?

White text is the more readable choice. #3F183B scores 14.94:1 against white and 1.41:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #3F183B as a CSS color keyword?

No. #3F183B is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is black (#000000) at a CIE76 distance of 31.35, which is a different colour altogether.

Open #3F183B in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every pink in the color library, the guide to shades of pink, or the full color library.