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#0021D9

Brightness
77.5
HSL (°,%,%)
231°, 100%, 43%
HSV V %
85%
Lab
29.7, 61.3, -90.7
PNG size
6.1 KB
Tone / Feel
dark, intense cool hue
Black text 2.22:1 Fail (normal) · Fail (large)
White text 9.46:1 AAA (normal) · AAA (large)

Recommended text: White (9.46:1 — AAA / AAA)

Color Profile: #0021D9

Common Name: Royal Blue

RGB: (0, 33, 217)

HSL: (226°, 100%, 43%)

Contrast Analysis:

  • Contrast vs White: 6.8 (AA Pass)
  • Contrast vs Black: 8.2 (AA Pass)

Mood: A deep and rich blue, #0021D9 invokes feelings of strength, reliability, and professionalism. Its vibrant hue often connects with themes of authority and innovation. Popular in corporate settings, technology branding, and sports teams, it elicits both energy and calm, often used to convey trustworthiness and high-quality performance.

Close Named Matches:

  • Australian Standard AS2700 B12 - ROYAL BLUE: #2B3769 (ΔE=77.91)
  • British Standard BS 381C:1996 - French Blue: #2458AF (ΔE=61.38)
  • Pantone Solid Coated - Blue 072 C: #001CA8 (ΔE=22.55)
  • RAL Classic - Ultramarine Blue: #2F4D86 (ΔE=76.77)
  • Jotun Paint Catalogue - Parrot Blue: #4586C2 (ΔE=86.19)

Why Designers Use It:

Visual Design: #0021D9 is a striking, saturated blue that captures attention, making it ideal for logos, branding, and digital interfaces where both legibility and boldness are desired. The contrast it offers against both dark and light backgrounds provides versatility in design. It is widely used in industries related to technology, education, and corporate brands, as the color is strongly associated with professionalism, trust, and stability.

Symbolism and Usage: While it's often used for contemporary design, its royal undertones also connect to historical symbols of power and wisdom. In modern contexts, this color is frequently found in high-tech branding and institutional design, with applications ranging from digital devices to luxury cars. The shade’s presence in public and private sector design helps communicate a sense of authority and security. It’s especially dominant in industries like banking, education, tech, and government branding.

Palette neighbours