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#311688 Color

#311688 is rgb(49, 22, 136) in RGB, hsl(254, 72%, 31%) in HSL, and about cmyk(64%, 84%, 0%, 47%) in CMYK. It has no registered color name of its own — the closest is Persian Indigo (#32127A), clearly related but distinguishable side by side at ΔE 6.19. White text is the more readable choice on this background.

#311688
HEX#311688
RGBrgb(49, 22, 136)
HSLhsl(254, 72%, 31%)
HSVhsv(254, 84%, 53%)
CMYKcmyk(64%, 84%, 0%, 47%)
OKLCHoklch(33.1% 0.171 282.6)
LABlab(19.02% 37.61 -59.35)
LCHlch(19.02% 70.27 302.36)

What #311688 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 #311688, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Persian Indigo#32127AΔE 6.19Phthalo Blue#000F89ΔE 8.97Imperial Blue#002395ΔE 9.97Samsung Blue#12279EΔE 10.63Indigo#4B0082ΔE 10.72Navy#000080ΔE 11.48

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

#311688 Channel Values

How #311688 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 49 · G 22 · B 1368-bit channels as sent to the display
HSLH 254° · S 72% · L 31%Easiest model for building lighter and darker variants
HSVH 254° · S 84% · V 53%Matches the picker in most design tools
CMYKC 64% · M 84% · Y 0% · K 47%Approximate ink mix; confirm with an ICC profile before printing
Luminance13.12:1 vs white · 1.6:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #311688 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 text13.12:1AA normal AA large AAA normal
Fails AABlack text1.6:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #311688 in the contrast checker.

Colors That Go With #311688

Pairings derived from color-wheel relationships. The complementary color sits opposite #311688; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#311688
Complementary
#6D8816
Analogous
#163488
Analogous
#6A1688
Triadic
#883116
Triadic
#168831
Split comp.
#886A16
Split comp.
#348816

Tints & Shades of #311688

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

#401DB4
#4F24DB
#7250E2
#9277E9
#B5A3F0
#D5CAF6

Shades

#2A1376
#241065
#1E0E53
#190B46
#130935
#0D0623

Want a full 50-950 ramp with semantic roles? Generate design tokens from #311688.

How #311688 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#311688
Protanopia#1C1C88
Protanomaly#261A88
Deuteranopia#212188
Deuteranomaly#281D88
Tritanopia#013737
Tritanomaly#1D2D62
Achromatopsia#303030

Test a full palette in the color blindness simulator.

Using #311688 in Code

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

CSS custom property--color-311688: #311688;
CSS backgroundbackground-color: #311688;
Tailwind configcolors: { 'color-311688': '#311688' }
SwiftUIColor(red: 0.192, green: 0.086, blue: 0.533)
Android XML<color name="color_311688">#311688</color>
SVG fillfill="#311688"

More Blue Colors

#311688 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#311688 Frequently Asked Questions

What color is #311688?

#311688 is a dark blue — rgb(49, 22, 136) in RGB and hsl(254, 72%, 31%) in HSL. It carries no registered color name of its own; the closest named color is Persian Indigo (#32127A), which is clearly related but distinguishable side by side at a CIE76 distance of 6.19.

What is the RGB value of #311688?

#311688 is rgb(49, 22, 136) — red 49, green 22, and blue 136 on the 0-255 scale.

What is the CMYK value of #311688?

#311688 converts to approximately cmyk(64%, 84%, 0%, 47%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #311688 be black or white?

White text is the more readable choice. #311688 scores 13.12:1 against white and 1.6:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #311688 as a CSS color keyword?

No. #311688 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 indigo (#4B0082) at a CIE76 distance of 10.72, which is visibly different.

Open #311688 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.