PHPOffice/PhpSpreadsheet · error · PhpOffice\PhpSpreadsheet\Chart\Exception

Invalid hex color for chart series (color: "%s")

Error message

Invalid hex color for chart series (color: "%s")

What it means

Error "Invalid hex color for chart series (color: "%s")" thrown in PHPOffice/PhpSpreadsheet.

Source

Thrown at src/PhpSpreadsheet/Chart/DataSeriesValues.php:340

            }
        } elseif ($color instanceof ChartColor) {
            $this->fillColor = $color;
        } else {
            $this->fillColor = $this->stringToChartColor($color);
        }

        return $this;
    }

    /**
     * Method for validating hex color.
     *
     * @param string $color value for color
     */
    private function validateColor(string $color): void
    {
        if (!preg_match('/^[a-f0-9]{6}$/i', $color)) {
            throw new Exception(sprintf('Invalid hex color for chart series (color: "%s")', $color));
        }
    }

    /**
     * Get line width for series.
     */
    public function getLineWidth(): null|float|int
    {
        /** @var null|float|int */
        $temp = $this->lineStyleProperties['width'];

        return $temp;
    }

    /**
     * Set line width for the series.
     *
     * @return $this

View on GitHub (pinned to 65b080eef4)

When it happens

Trigger: Thrown at src/PhpSpreadsheet/Chart/DataSeriesValues.php:340 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of PHPOffice/PhpSpreadsheet@65b080eef4 (2026-08-17). Data as JSON: /api/errors/6d5ec243ceb14b1c. Report an issue: GitHub.