#E45523
- RGB
- 228, 85, 35
- Brightness
- 141.2
- HSL (°,%,%)
- 16°, 78%, 52%
- HSV V %
- 89%
- Lab
- 55.2, 53.4, 55.3
- CMYK (%)
- 0%, 63%, 85%, 11%
- PNG size
- 5.5 KB
- Tone / Feel
- mid, intense warm hue
Black text
5.62:1
AA (normal) · AAA (large) (large)
White text
3.74:1
Fail (normal) · AA (large) (large)
Recommended text: Black (5.62:1 — AA / AAA (large))
Color Profile: #E45523
Common Name: International Orange
RGB: Red: 228, Green: 85, Blue: 35
HSL: Hue: 21°, Saturation: 88%, Lightness: 53%
Contrast vs White: 5.4 (Passes AA)
Contrast vs Black: 7.2 (Passes AA)
Mood: A rich, bold and energetic color, #E45523 captures the vibrant essence of action and visibility. Popular in aerospace, road safety, and as a signal color in emergency systems, it communicates urgency and importance. It has a warm, fiery tone that brings a sense of alertness and strength, often used in environments requiring high visibility.
Close Matches:
- BS 381C:1996 - International Orange #E45523 (Exact match, ΔE=0.00)
- Pantone 1665 C - #E24912 (ΔE=6.23)
- RAL 2004 - Pure Orange #E55E33 (ΔE=6.62)
- BS2660 - Poppy Red #C7361E (ΔE=12.95)
- Munsell 10r 6/14 - #F6612C (ΔE=5.43)
Why Designers Use It:
- Designers love #E45523 because of its high visibility and strong presence. It is perfect for use in designs that require attention-grabbing hues without being overly harsh. This orange has found its place in sectors like safety (road signs, aviation), aerospace, and high-visibility workwear.
- It is often used in the context of critical systems that need to be noticed—such as warning signals or emergency lighting. Its vibrant tone is associated with urgency, making it ideal for industrial applications, especially in manufacturing and logistics.
- From the military to transportation, this color serves as a vital visual signal, appearing on aircraft, vehicles, and uniforms to ensure visibility in high-risk environments.
- On the more creative side, its use extends to interior design, where it is chosen to bring energy to modern spaces, while still maintaining a professional and polished appeal. It pairs well with cooler tones like dark grays and blacks, offering a modern and dynamic contrast.
- While this color is timeless in certain industries, it is increasingly adopted by modern brands looking to make a bold statement, especially in advertising and packaging design. Its vibrant nature is often embraced in seasonal marketing for products that aim to stand out during peak times like autumn.