International Orange (#FF4F00)

HEX, RGB, HSL, CMYK values + mood/style/use-case color tags. Use this page to keep your colors consistent across web and print.

Preview

Sample Text

This is how text may look on this color.

Best text color: #000000
Contrast vs white: 3.30:1 — vs black: 6.37:1

Color values

HEX #FF4F00
RGB rgb(255, 79, 0)
HSL hsl(18, 100%, 50%)
CMYK cmyk( 0, 69, 100, 0 )
Websafe #FF6600

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Tags

Mood

Energetic (215) Bold (205)

Style

Vivid (210) Warm (180)

Use case

Text (210) Button (200) Accent (185)

Tip: tags are heuristic suggestions (helpful for browsing and inspiration).

Color Harmonies

Colors that pair well with #FF4F00 based on color theory relationships.

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

International Orange
#FF4F00 Base

#00B0FF

Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

International Orange
#FF4F00 Base

#FF0031

#FFCE00

Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

International Orange
#FF4F00 Base

#00FF4F

#4F00FF

Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

International Orange
#FF4F00 Base

#00FFCE

#0031FF

Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

International Orange
#FF4F00 Base

#31FF00

#00B0FF

#CE00FF

Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

International Orange
#FF4F00 Base

#662000

#B33700

#D64200

#FF6B29

#FF844D

#FFB999

Shades & Tints

Darker shades and lighter tints of International Orange, generated by adjusting lightness while keeping the same hue and saturation.

Shades (darker)

— #1A0800

— #471600

— #752400

— #A33300

— #D14100

International Orange #FF4F00 Base

— #FF6F2E

— #FF8E5C

— #FFAE8A

— #FFCEB8

— #FFEDE6

CSS & SCSS Snippets

Ready-to-use code snippets for #FF4F00. Click the copy button to copy any snippet to your clipboard.

/* Background */
.element {
    background-color: #FF4F00;
}

/* Text */
.element {
    color: #FF4F00;
}

/* Border */
.element {
    border: 1px solid #FF4F00;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #FF4F00,
        #00B0FF
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #FF4F00,
        #00B0FF
    );
}

// SCSS variable
$international-orange: #FF4F00;

// With RGB channels (useful for rgba() usage)
$international-orange-r: 255;
$international-orange-g: 79;
$international-orange-b: 0;

// Usage
.element {
    background-color: $international-orange;
    color: rgba($international-orange-r, $international-orange-g, $international-orange-b, 0.8);
}

Color Blindness Simulation

How International Orange appears to people with different types of color vision deficiency.

Normal Vision #FF4F00 How the color appears with full color vision.

Deuteranopia #9F9F00 Deuteranopia affects ~8% of males. Green cones are absent, making it difficult to distinguish red from green. The most common form of color blindness.

Protanopia #75750D Protanopia affects ~1% of males. Red cones are absent, causing reds to appear dark and indistinguishable from greens and browns.

Tritanopia #FF4A4A Tritanopia is rare (~0.003%). Blue cones are absent, making blue and yellow difficult to distinguish. Blues may appear green, yellows appear pink.

Achromatopsia #8E8E8E Achromatopsia is complete color blindness. The world is seen entirely in shades of grey. Affects ~1 in 30,000 people.

Similar Named Colors

The closest named colors to International Orange ranked by perceptual difference (Delta-E 2000 — lower = more similar).

International Orange #FF4F00 Base

Tangelo #F94D00 ΔE 1.24

Orioles Orange #FB4F14 ΔE 1.72

Orange Red #FF4500 ΔE 1.91

Willpower Orange #FD5800 ΔE 1.93

How to use this color

Copy HEX for CSS and design tools, or RGB/HSL for UI adjustments.
Use CMYK when preparing print assets (posters, packaging, brochures).
Check contrast before using it for text or important UI elements.