Telegrey 1 RAL 7045
Color values
HEX #909090
RGB 144, 144, 144
HSL 0°, 0%, 56%
Series Greys
All formats
HEX #909090
RGB rgb(144, 144, 144)
HSL hsl(0, 0%, 56%)
CSS var --color: #909090;
RAL RAL 7045
Color analysis
Temperature Neutral
Luminance 28%
Saturation 0%
Brightness 56%
WCAG accessibility
On white background
Aa — The quick brown fox jumps over the lazy dog
3.19:1
AA Fail
AA large Pass
AAA Fail
AAA large Fail
On black background
Aa — The quick brown fox jumps over the lazy dog
6.58:1
AA Pass
AA large Pass
AAA Fail
AAA large Pass
Tint & shade scale
Use this color in other tools
Where it's used
A mid-tone communication grey used in telecommunications equipment, server housings, and IT infrastructure. Pairs with RAL 9010 and RAL 5005.
About this color
RAL 7045 Telegrey 1 is a RAL Classic color with HEX value #909090, RGB(144, 144, 144), HSL(0°, 0%, 56%). It belongs to the Greys family (RAL 7xxx series). WCAG relative luminance: 28%. Contrast on white: 3.19:1. Contrast on black: 6.58:1.
FAQ
RAL 7045 Telegrey 1 is a standardized color from the RAL Classic palette, used in industry, architecture, and design for consistent color communication. Its HEX value is #909090, equivalent to RGB(144, 144, 144).
The HEX code of RAL 7045 Telegrey 1 is #909090. In CSS you can use it directly: color: #909090; or background-color: #909090;. Its RGB equivalent is rgb(144, 144, 144) and HSL is hsl(0, 0%, 56%).
RAL codes (e.g. RAL 7045) are physical paint standards created for industrial use — they define exact pigment formulations. HEX codes (e.g. #909090) are digital representations for screens. The conversion is approximate: the same HEX can look different on screens vs. painted surfaces due to lighting, texture, and pigment variance.
WCAG contrast ratio compares the relative luminance of two colors: (L1+0.05)/(L2+0.05), where L is calculated from linearized RGB values. RAL 7045 Telegrey 1 has a relative luminance of 28%, giving a contrast of 3.19:1 on white and 6.58:1 on black. AA requires ≥4.5:1 for normal text.
The HEX value #909090 is the closest digital approximation of RAL 7045 Telegrey 1, but not an exact physical match. RAL colors are defined by spectrophotometric measurements of physical paint samples. On-screen rendering depends on your monitor calibration, color profile, and ambient lighting.
RAL 7045 Telegrey 1 (HEX #909090) is used in industrial coatings, architectural finishes, signage, and product design wherever greys tones are needed. RAL Classic codes are the standard reference in European manufacturing, construction, and powder coating industries.
RAL Classic contains 215 standardized colors organized into 9 series by hue family: yellows/beiges (1xxx), oranges (2xxx), reds (3xxx), violets (4xxx), blues (5xxx), greens (6xxx), greys (7xxx), browns (8xxx), and whites/blacks (9xxx). RAL 7045 belongs to the Greys family.