Your website’s brand colors appear muted, gradients shift unexpectedly, and printed materials don’t match the screen version. Stakeholders notice inconsistent shades across browsers, and clients comment that the logo looks ‘off‑color.’ Even seasoned designers experience surprise when a hex value like #4A90E2 renders as a markedly cooler blue after conversion. These visible symptoms signal that the underlying color math is flawed.
The root cause lies in how converters process the hex string. Many tools apply a linear 0‑255 mapping without the sRGB gamma curve, producing lighter or darker results. Others truncate decimal values at the first step, discarding the subtle nuance of intermediate tones. Some ignore the possibility that the surrounding CSS or image profile may be in a different color space, causing the final RGB triplet to clash with its intended environment.