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#1F2FDB Color

#1F2FDB is rgb(31, 47, 219) in RGB, hsl(235, 75%, 49%) in HSL, and about cmyk(86%, 79%, 0%, 14%) in CMYK. It has no registered color name of its own — the closest is Palatinate Blue (#273BE2), clearly related but distinguishable side by side at ΔE 5.44. White text is the more readable choice on this background.

#1F2FDB
HEX#1F2FDB
RGBrgb(31, 47, 219)
HSLhsl(235, 75%, 49%)
HSVhsv(235, 86%, 86%)
CMYKcmyk(86%, 79%, 0%, 14%)
OKLCHoklch(44.4% 0.251 267.4)
LABlab(30.97% 45.99 -89.26)
LCHlch(30.97% 100.41 297.26)

What #1F2FDB 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 #1F2FDB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Palatinate Blue#273BE2ΔE 5.44Iridescent Indigo#3C32CDΔE 9.95Medium Blue#0000CDΔE 15.65Zaffer (Zaffre)#0014A8ΔE 16.04Blue (Pantone)#0018A8ΔE 16.7Neon Blue#1B03A3ΔE 17.53

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

#1F2FDB Channel Values

How #1F2FDB 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 31 · G 47 · B 2198-bit channels as sent to the display
HSLH 235° · S 75% · L 49%Easiest model for building lighter and darker variants
HSVH 235° · S 86% · V 86%Matches the picker in most design tools
CMYKC 86% · M 79% · Y 0% · K 14%Approximate ink mix; confirm with an ICC profile before printing
Luminance8.44:1 vs white · 2.49:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #1F2FDB 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 text8.44:1AA normal AA large AAA normal
Fails AABlack text2.49:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #1F2FDB in the contrast checker.

Colors That Go With #1F2FDB

Pairings derived from color-wheel relationships. The complementary color sits opposite #1F2FDB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#1F2FDB
Complementary
#DBCB1F
Analogous
#1F8DDB
Analogous
#6D1FDB
Triadic
#DB1F2F
Triadic
#2FDB1F
Split comp.
#DB6D1F
Split comp.
#8DDB1F

Tints & Shades of #1F2FDB

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

#3B49E3
#5A66E7
#7983EC
#98A0F0
#B8BDF5
#D7DAF9

Shades

#1B29C0
#1722A1
#131D86
#0F1667
#0B104C
#060A2D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #1F2FDB.

How #1F2FDB 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#1F2FDB
Protanopia#2D2DDB
Protanomaly#282EDB
Deuteranopia#2A2ADB
Deuteranomaly#262CDB
Tritanopia#005F5F
Tritanomaly#0050A0
Achromatopsia#4D4D4D

Test a full palette in the color blindness simulator.

Using #1F2FDB in Code

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

CSS custom property--color-1f2fdb: #1F2FDB;
CSS backgroundbackground-color: #1F2FDB;
Tailwind configcolors: { 'color-1f2fdb': '#1F2FDB' }
SwiftUIColor(red: 0.122, green: 0.184, blue: 0.859)
Android XML<color name="color_1f2fdb">#1F2FDB</color>
SVG fillfill="#1F2FDB"

More Blue Colors

#1F2FDB sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#1F2FDB Frequently Asked Questions

What color is #1F2FDB?

#1F2FDB is a mid-tone blue — rgb(31, 47, 219) in RGB and hsl(235, 75%, 49%) in HSL. It carries no registered color name of its own; the closest named color is Palatinate Blue (#273BE2), which is clearly related but distinguishable side by side at a CIE76 distance of 5.44.

What is the RGB value of #1F2FDB?

#1F2FDB is rgb(31, 47, 219) — red 31, green 47, and blue 219 on the 0-255 scale.

What is the CMYK value of #1F2FDB?

#1F2FDB converts to approximately cmyk(86%, 79%, 0%, 14%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #1F2FDB be black or white?

White text is the more readable choice. #1F2FDB scores 8.44:1 against white and 2.49:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #1F2FDB as a CSS color keyword?

No. #1F2FDB 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 mediumblue (#0000CD) at a CIE76 distance of 15.65, which is visibly different.

Open #1F2FDB 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.