Radical Red (#FF355E)

The hex code for Radical Red is #FF355E. It is rgb(255, 53, 94) in RGB, hsl(348, 100%, 60%) in HSL, and about cmyk(0%, 79%, 63%, 0%) in CMYK — a light red. Black text is the more readable choice on this background.

#FF355E

HEX#FF355E

RGBrgb(255, 53, 94)

HSLhsl(348, 100%, 60%)

HSVhsv(348, 79%, 100%)

CMYKcmyk(0%, 79%, 63%, 0%)

OKLCHoklch(65.6% 0.233 16.1)

LABlab(57.54% 75.33 28.71)

LCHlch(57.54% 80.61 20.87)

Colors Closest to Radical Red

Radical Red is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Neon Fuchsia#FE4164ΔE 4.07 Sizzling Red#FF3855ΔE 5.56 Red (Crayola)#EE204DΔE 5.95 Spanish Crimson#E51A4CΔE 7.62 Amaranth#E52B50ΔE 8.02 Fiery Rose#FF5470ΔE 10.97

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

#FF355E Channel Values

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

Model	Channels	Notes
RGB	R 255 · G 53 · B 94	8-bit channels as sent to the display
HSL	H 348° · S 100% · L 60%	Easiest model for building lighter and darker variants
HSV	H 348° · S 79% · V 100%	Matches the picker in most design tools
CMYK	C 0% · M 79% · Y 63% · K 0%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	3.55:1 vs white · 5.92:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Radical Red 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 text3.55:1AA normal ✗AA large ✓AAA normal ✗

TextBlack text5.92:1AA normal ✓AA large ✓AAA normal ✗

Need a specific ratio against another background? Open #FF355E in the contrast checker.

Colors That Go With Radical Red

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

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of Radical Red

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

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #FF355E.

How Radical Red 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#FF355E

Protanopia#7C7C5C

Protanomaly#BF675D

Deuteranopia#A1A152

Deuteranomaly#CD8357

Tritanopia#FE3C3C

Tritanomaly#FE394C

Achromatopsia#888888

Test a full palette in the color blindness simulator.

Using #FF355E in Code

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

CSS custom property--radical-red: #FF355E;

CSS backgroundbackground-color: #FF355E;

Tailwind configcolors: { 'radical-red': '#FF355E' }

SwiftUIColor(red: 1.000, green: 0.208, blue: 0.369)

Android XML<color name="radical_red">#FF355E</color>

SVG fillfill="#FF355E"

More Red Colors

Radical Red sits in the redfamily. These are its neighbours across that family's full range, each with its own breakdown.

ff3800 ff3366 ff3838 ff3333 ff3855 ff3300 ff3859 ff301a ff386a ff2929 ff3c1a ff2603 ff8599 ffccd3 2f0e0e 570900 7c0a02 990f00 af4035 c4aead d7bcbc e60026 f29191 fcb3ab

#FF355E Frequently Asked Questions

What is the hex code for Radical Red?

The hex code for Radical Red is #FF355E. That is rgb(255, 53, 94) in RGB, hsl(348, 100%, 60%) in HSL, and approximately cmyk(0%, 79%, 63%, 0%) in CMYK.

What is the RGB value of #FF355E?

#FF355E is rgb(255, 53, 94) — red 255, green 53, and blue 94 on the 0-255 scale.

What is the CMYK value of #FF355E?

#FF355E converts to approximately cmyk(0%, 79%, 63%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #FF355E be black or white?

Black text is the more readable choice. #FF355E scores 3.55:1 against white and 5.92:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #FF355E as a CSS color keyword?

No. #FF355E 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 crimson (#DC143C) at a CIE76 distance of 12.47, which is visibly different.

Open Radical Red in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

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