#ff3521

Color #ff3521

A vivid, highly saturated medium red.

Closest named color Red #ff0000 · ΔE 11.46 Nearest Tailwind class red-500 #fb2c36 · ΔE 5.4

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#ff3521

RGB

rgb(255, 53, 33)

HSL

hsl(5.4, 100%, 56.5%)

HSV / HSB

hsv(5.4, 87.1%, 100%)

CMYK

cmyk(0%, 79.2%, 87.1%, 0%)

LAB

lab(56.01, 72.83, 58.78)

LCH

lch(56.01, 93.59, 38.91)

OKLCH

oklch(64.9%, 0.2376, 30.19)

HWB

hwb(5.4, 12.9%, 0%)

Harmony colors

Complementary

#21ebff

Analogous

#ff217c

#ff3521

#ffa421

Triadic

#ff3521

#21ff35

#3521ff

Split-complementary

#ff3521

#21ffa4

#217cff

Tetradic

#ff3521

#ebff21

#21ebff

#3521ff

Square

#ff3521

#7cff21

#21ebff

#a421ff

Shades

Color #ff3521 mixed toward black.

#f01600

#c01100

#900d00

#600900

#300400

Tints

Color #ff3521 mixed toward white.

#ff5746

#ff786b

#ff9a90

#ffbcb5

#ffddda

Tones

Color #ff3521 mixed toward gray.

#ed4434

#da5346

#c86359

#b5726b

#a3817e

Accessibility

Aa White text on this color

3.63:1

Aa Black text on this color

5.78:1

Black text reads better on this background (5.78:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#c9c727 · ΔE 53.9

Deuteranopia

#d1db28 · ΔE 59

Tritanopia

#fa2b2c · ΔE 3.6

Achromatopsia

#868686 · ΔE 30.2

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #ff3521;

Tailwind (arbitrary value)

bg-[#ff3521]

Related colors

Misty Rose #ffe4e1

Salmon #fa8072

Tomato #ff6347

Red #ff0000

Maroon #800000

Black #000000

Frequently asked questions

#ff3521 (#ff3521) is rgb(255, 53, 33) in RGB.

No, #ff3521 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #ff3521, or check how it holds up for accessibility.

Generate a palette → Check contrast