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#4F91BA Color

#4F91BA is rgb(79, 145, 186) in RGB, hsl(203, 44%, 52%) in HSL, and about cmyk(58%, 22%, 0%, 27%) in CMYK. It has no registered color name of its own — the closest is Cerulean Frost (#6D9BC3), clearly related but distinguishable side by side at ΔE 7.04. Black text is the more readable choice on this background.

#4F91BA
HEX#4F91BA
RGBrgb(79, 145, 186)
HSLhsl(203, 44%, 52%)
HSVhsv(203, 58%, 73%)
CMYKcmyk(58%, 22%, 0%, 27%)
OKLCHoklch(63% 0.092 237.9)
LABlab(57.09% -12.61 -28.33)
LCHlch(57.09% 31.00 246.01)

What #4F91BA 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 #4F91BA, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Cerulean Frost#6D9BC3ΔE 7.04Blue-gray#6699CCΔE 8.02Steel Blue#4682B4ΔE 8.02Air Force Blue#5D8AA8ΔE 8.06Silver Lake Blue#5D89BAΔE 8.18Carolina Blue#4B9CD3ΔE 8.79

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

#4F91BA Channel Values

How #4F91BA breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 79 · G 145 · B 1868-bit channels as sent to the display
HSLH 203° · S 44% · L 52%Easiest model for building lighter and darker variants
HSVH 203° · S 58% · V 73%Matches the picker in most design tools
CMYKC 58% · M 22% · Y 0% · K 27%Approximate ink mix; confirm with an ICC profile before printing
Luminance3.45:1 vs white · 6.09:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #4F91BA 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 text3.45:1AA normal AA large AAA normal
TextBlack text6.09:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #4F91BA in the contrast checker.

Colors That Go With #4F91BA

Pairings derived from color-wheel relationships. The complementary color sits opposite #4F91BA; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#4F91BA
Complementary
#BA784F
Analogous
#4FBAAE
Analogous
#4F5BBA
Triadic
#BA4F91
Triadic
#91BA4F
Split comp.
#BA4F5B
Split comp.
#BAAE4F

Tints & Shades of #4F91BA

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

#68A1C4
#7EAFCD
#98BFD7
#AECDE0
#C8DDEA
#DEEAF2

Shades

#407FA5
#366B8C
#2C5772
#24465C
#1A3342
#101F28

Want a full 50-950 ramp with semantic roles? Generate design tokens from #4F91BA.

How #4F91BA 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#4F91BA
Protanopia#8989BA
Protanomaly#768CBA
Deuteranopia#8080BB
Deuteranomaly#7087BB
Tritanopia#409797
Tritanomaly#4795A6
Achromatopsia#8A8A8A

Test a full palette in the color blindness simulator.

Using #4F91BA in Code

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

CSS custom property--color-4f91ba: #4F91BA;
CSS backgroundbackground-color: #4F91BA;
Tailwind configcolors: { 'color-4f91ba': '#4F91BA' }
SwiftUIColor(red: 0.310, green: 0.569, blue: 0.729)
Android XML<color name="color_4f91ba">#4F91BA</color>
SVG fillfill="#4F91BA"

More Blue Colors

#4F91BA sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#4F91BA Frequently Asked Questions

What color is #4F91BA?

#4F91BA is a mid-tone blue — rgb(79, 145, 186) in RGB and hsl(203, 44%, 52%) in HSL. It carries no registered color name of its own; the closest named color is Cerulean Frost (#6D9BC3), which is clearly related but distinguishable side by side at a CIE76 distance of 7.04.

What is the RGB value of #4F91BA?

#4F91BA is rgb(79, 145, 186) — red 79, green 145, and blue 186 on the 0-255 scale.

What is the CMYK value of #4F91BA?

#4F91BA converts to approximately cmyk(58%, 22%, 0%, 27%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #4F91BA be black or white?

Black text is the more readable choice. #4F91BA scores 3.45:1 against white and 6.09:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #4F91BA as a CSS color keyword?

No. #4F91BA 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 steelblue (#4682B4) at a CIE76 distance of 8.02, which is clearly related but distinguishable side by side.

Open #4F91BA in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

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