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#5491BB Color

#5491BB is rgb(84, 145, 187) in RGB, hsl(204, 43%, 53%) in HSL, and about cmyk(55%, 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 6.06. Black text is the more readable choice on this background.

#5491BB
HEX#5491BB
RGBrgb(84, 145, 187)
HSLhsl(204, 43%, 53%)
HSVhsv(204, 55%, 73%)
CMYKcmyk(55%, 22%, 0%, 27%)
OKLCHoklch(63.3% 0.09 240.3)
LABlab(57.35% -11.19 -28.47)
LCHlch(57.35% 30.59 248.53)

What #5491BB 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 #5491BB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Cerulean Frost#6D9BC3ΔE 6.06Blue-gray#6699CCΔE 6.84Silver Lake Blue#5D89BAΔE 6.9Steel Blue#4682B4ΔE 7.47Air Force Blue#5D8AA8ΔE 7.87Iceberg#71A6D2ΔE 8.58

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

#5491BB Channel Values

How #5491BB 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 84 · G 145 · B 1878-bit channels as sent to the display
HSLH 204° · S 43% · L 53%Easiest model for building lighter and darker variants
HSVH 204° · S 55% · V 73%Matches the picker in most design tools
CMYKC 55% · M 22% · Y 0% · K 27%Approximate ink mix; confirm with an ICC profile before printing
Luminance3.42:1 vs white · 6.14:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #5491BB 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 text3.42:1AA normal AA large AAA normal
TextBlack text6.14:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #5491BB in the contrast checker.

Colors That Go With #5491BB

Pairings derived from color-wheel relationships. The complementary color sits opposite #5491BB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#5491BB
Complementary
#BB7D54
Analogous
#54BBB0
Analogous
#545EBB
Triadic
#BB5491
Triadic
#91BB54
Split comp.
#BB545E
Split comp.
#BBB054

Tints & Shades of #5491BB

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

#699FC3
#83B0CE
#99BED6
#B2CEE0
#C8DCE9
#E2ECF3

Shades

#437FA8
#396C8E
#2F5975
#24455B
#1A3242
#101E28

Want a full 50-950 ramp with semantic roles? Generate design tokens from #5491BB.

How #5491BB 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#5491BB
Protanopia#8989BB
Protanomaly#778CBB
Deuteranopia#8181BC
Deuteranomaly#7288BC
Tritanopia#469797
Tritanomaly#4C95A7
Achromatopsia#8B8B8B

Test a full palette in the color blindness simulator.

Using #5491BB in Code

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

CSS custom property--color-5491bb: #5491BB;
CSS backgroundbackground-color: #5491BB;
Tailwind configcolors: { 'color-5491bb': '#5491BB' }
SwiftUIColor(red: 0.329, green: 0.569, blue: 0.733)
Android XML<color name="color_5491bb">#5491BB</color>
SVG fillfill="#5491BB"

More Blue Colors

#5491BB sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#5491BB Frequently Asked Questions

What color is #5491BB?

#5491BB is a mid-tone blue — rgb(84, 145, 187) in RGB and hsl(204, 43%, 53%) 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 6.06.

What is the RGB value of #5491BB?

#5491BB is rgb(84, 145, 187) — red 84, green 145, and blue 187 on the 0-255 scale.

What is the CMYK value of #5491BB?

#5491BB converts to approximately cmyk(55%, 22%, 0%, 27%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #5491BB be black or white?

Black text is the more readable choice. #5491BB scores 3.42:1 against white and 6.14:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #5491BB as a CSS color keyword?

No. #5491BB 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 7.47, which is clearly related but distinguishable side by side.

Open #5491BB 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.