RAL 8019 Grey Brown

#403A3A

RAL color

Grey Brown (#403A3A) is a very dark, near-neutral warm brown from the RAL Classic system, occupying the ambiguous space between deep charcoal-grey and dark brown. Used in architectural coatings, heavy machinery, and urban street furniture where a sombre, robust dark tone is required without the starkness of pure black, it provides a quietly intense, mature appearance. The grey-brown ambiguity gives it a contemporary, versatile character in design.

Color Values

HEX

#403A3A

RGB

64, 58, 58

HSL

0.0, 4.9%, 23.9%

HSV

0.0, 9.4%, 25.1%

CMYK

0.0%, 9.4%, 9.4%, 74.9%

OKLCH

0.3546 0.0084 17.6

Properties

Color Psychology

Dark grays and charcoals project authority, formality, and sophisticated restraint. They are the color of graphite, storm clouds, and evening suits, carrying weight without the absolute finality of black. These tones suggest seriousness and expertise tempered by subtle warmth.

Design Usage

Dark gray is the preferred text color over pure black for reducing eye strain on light backgrounds. It serves as the standard dark-mode surface color in Material Design and other major design systems. Pair it with a single vivid accent color for a minimal, high-impact visual hierarchy.

Color Harmonies

Color Blindness Simulation

CSS Usage

background-color: #403A3A;
color: #403A3A;
border-color: #403A3A;
Nearest Tailwind: Neutral 700 #404040

Tailwind Shades

Contrast Checker

Text on white

11.14:1

AA Pass AAA Pass

Text on black

1.88:1

AA Fail AAA Fail

Compare With

Frequently Asked Questions

What are the RGB, HSL, and CMYK values of #403A3A?

RGB(64, 58, 58) · HSL(0.0, 4.9%, 23.9%) · CMYK(0.0%, 9.4%, 9.4%, 74.9%)

Does #403A3A meet WCAG contrast on white?

11.14:1 — WCAG AA Pass, AAA Pass for normal text.

What text color is readable on #403A3A?

Use FFFFFF text on a #403A3A background; contrast on black is 1.88:1.