#B4B5BB Color

#B4B5BB is rgb(180, 181, 187) in RGB, hsl(231, 5%, 72%) in HSL, and about cmyk(4%, 3%, 0%, 27%) in CMYK. It has no registered color name of its own — the closest is Philippine Silver (#B3B3B3), very hard to tell apart at ΔE 3.32. Black text is the more readable choice on this background.

#B4B5BB

HEX#B4B5BB

RGBrgb(180, 181, 187)

HSLhsl(231, 5%, 72%)

HSVhsv(231, 4%, 73%)

CMYKcmyk(4%, 3%, 0%, 27%)

OKLCHoklch(77.4% 0.009 278.6)

LABlab(73.74% 0.49 -3.19)

LCHlch(73.74% 3.23 278.71)

What #B4B5BB 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 #B4B5BB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Philippine Silver#B3B3B3ΔE 3.32 Aluminium#A9ACB6ΔE 4.13 Silver (Metallic)#AAA9ADΔE 4.52 Gray (X11)#BEBEBEΔE 4.57 Metallic Silver#A8A9ADΔE 4.61 Silver Chalice#ACACACΔE 4.67

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

#B4B5BB Channel Values

How #B4B5BB 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 180 · G 181 · B 187	8-bit channels as sent to the display
HSL	H 231° · S 5% · L 72%	Easiest model for building lighter and darker variants
HSV	H 231° · S 4% · V 73%	Matches the picker in most design tools
CMYK	C 4% · M 3% · Y 0% · K 27%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	2.05:1 vs white · 10.27:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #B4B5BB 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.

Fails AAWhite text2.05:1AA normal AA large AAA normal

TextBlack text10.27:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #B4B5BB in the contrast checker.

Colors That Go With #B4B5BB

Pairings derived from color-wheel relationships. The complementary color sits opposite #B4B5BB; 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 #B4B5BB

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 #B4B5BB.

How #B4B5BB 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#B4B5BB

Protanopia#B5B5BB

Protanomaly#B4B5BB

Deuteranopia#B5B5BB

Deuteranomaly#B4B5BB

Tritanopia#B3B6B6

Tritanomaly#B4B5B8

Achromatopsia#B5B5B5

Test a full palette in the color blindness simulator.

Using #B4B5BB in Code

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

CSS custom property--color-b4b5bb: #B4B5BB;

CSS backgroundbackground-color: #B4B5BB;

Tailwind configcolors: { 'color-b4b5bb': '#B4B5BB' }

SwiftUIColor(red: 0.706, green: 0.710, blue: 0.733)

Android XML<color name="color_b4b5bb">#B4B5BB</color>

SVG fillfill="#B4B5BB"

More Gray Colors

#B4B5BB sits in the gray family. These are its neighbours across that family's full range, each with its own breakdown.

27272a d9d9d9 292524 d8d8d8 292929 d6d6d6 2a2d2f d6d3d1 2b2b2b d4d4d8 2e2e2e d4d4d4 353839 43494e 51484f 5c5c5c 6b6e70 796878 838996 8e8c84 a1a1a1 acacac bebebe d1d1d1

#B4B5BB Frequently Asked Questions

What color is #B4B5BB?

#B4B5BB is a light gray — rgb(180, 181, 187) in RGB and hsl(231, 5%, 72%) in HSL. It carries no registered color name of its own; the closest named color is Philippine Silver (#B3B3B3), which is very hard to tell apart at a CIE76 distance of 3.32.

What is the RGB value of #B4B5BB?

#B4B5BB is rgb(180, 181, 187) — red 180, green 181, and blue 187 on the 0-255 scale.

What is the CMYK value of #B4B5BB?

#B4B5BB converts to approximately cmyk(4%, 3%, 0%, 27%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #B4B5BB be black or white?

Black text is the more readable choice. #B4B5BB scores 2.05:1 against white and 10.27:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #B4B5BB as a CSS color keyword?

No. #B4B5BB 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 silver (#C0C0C0) at a CIE76 distance of 5.11, which is clearly related but distinguishable side by side.

Open #B4B5BB 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 gray in the color library, the guide to shades of gray, or the full color library.