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#3587B6 Color

#3587B6 is rgb(53, 135, 182) in RGB, hsl(202, 55%, 46%) in HSL, and about cmyk(71%, 26%, 0%, 29%) in CMYK. It has no registered color name of its own — the closest is Steel Blue (#4682B4), clearly related but distinguishable side by side at ΔE 5.42. Black text is the more readable choice on this background.

#3587B6
HEX#3587B6
RGBrgb(53, 135, 182)
HSLhsl(202, 55%, 46%)
HSVhsv(202, 71%, 71%)
CMYKcmyk(71%, 26%, 0%, 29%)
OKLCHoklch(59.4% 0.106 237.7)
LABlab(52.95% -13.68 -32.55)
LCHlch(52.95% 35.31 247.20)

What #3587B6 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 #3587B6, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Steel Blue#4682B4ΔE 5.42Blue (NCS)#0087BDΔE 5.71Cerulean#007BA7ΔE 6.27Carolina Blue#4B9CD3ΔE 8.97Silver Lake Blue#5D89BAΔE 9.2Star Command Blue#007BB8ΔE 9.69

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

#3587B6 Channel Values

How #3587B6 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 53 · G 135 · B 1828-bit channels as sent to the display
HSLH 202° · S 55% · L 46%Easiest model for building lighter and darker variants
HSVH 202° · S 71% · V 71%Matches the picker in most design tools
CMYKC 71% · M 26% · Y 0% · K 29%Approximate ink mix; confirm with an ICC profile before printing
Luminance3.97:1 vs white · 5.29:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #3587B6 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 text3.97:1AA normal AA large AAA normal
TextBlack text5.29:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #3587B6 in the contrast checker.

Colors That Go With #3587B6

Pairings derived from color-wheel relationships. The complementary color sits opposite #3587B6; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#3587B6
Complementary
#B66435
Analogous
#35B6A5
Analogous
#3546B6
Triadic
#B63587
Triadic
#87B635
Split comp.
#B63546
Split comp.
#B6A535

Tints & Shades of #3587B6

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

#4599C9
#65AAD2
#81B9DA
#A0CBE3
#BCDAEB
#DBEBF5

Shades

#2E759E
#276386
#20526F
#194057
#122F3F
#0B1D28

Want a full 50-950 ramp with semantic roles? Generate design tokens from #3587B6.

How #3587B6 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#3587B6
Protanopia#7E7EB6
Protanomaly#6881B6
Deuteranopia#7474B7
Deuteranomaly#617CB7
Tritanopia#148E8E
Tritanomaly#258BA0
Achromatopsia#808080

Test a full palette in the color blindness simulator.

Using #3587B6 in Code

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

CSS custom property--color-3587b6: #3587B6;
CSS backgroundbackground-color: #3587B6;
Tailwind configcolors: { 'color-3587b6': '#3587B6' }
SwiftUIColor(red: 0.208, green: 0.529, blue: 0.714)
Android XML<color name="color_3587b6">#3587B6</color>
SVG fillfill="#3587B6"

More Blue Colors

#3587B6 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#3587B6 Frequently Asked Questions

What color is #3587B6?

#3587B6 is a mid-tone blue — rgb(53, 135, 182) in RGB and hsl(202, 55%, 46%) in HSL. It carries no registered color name of its own; the closest named color is Steel Blue (#4682B4), which is clearly related but distinguishable side by side at a CIE76 distance of 5.42.

What is the RGB value of #3587B6?

#3587B6 is rgb(53, 135, 182) — red 53, green 135, and blue 182 on the 0-255 scale.

What is the CMYK value of #3587B6?

#3587B6 converts to approximately cmyk(71%, 26%, 0%, 29%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #3587B6 be black or white?

Black text is the more readable choice. #3587B6 scores 3.97:1 against white and 5.29:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #3587B6 as a CSS color keyword?

No. #3587B6 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 5.42, which is clearly related but distinguishable side by side.

Open #3587B6 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.