RAL 5011 Steel Blue

#231A24

RAL color

RAL 5011 Steel Blue (#231A24) is an extremely dark, near-black blue from the RAL Classic system with a subtle warm undertone — almost indistinguishable from black in many conditions. This near-black is used in high-end architectural metalwork, industrial machinery, and premium consumer products as a warm-dark specification with greater depth than pure navy.

Color Values

HEX

#231A24

RGB

35, 26, 36

HSL

294.0, 16.1%, 12.2%

HSV

294.0, 27.8%, 14.1%

CMYK

2.8%, 27.8%, 0.0%, 85.9%

OKLCH

0.2331 0.0231 323.0

Properties

Color Psychology

Dark magentas convey intensity, sensuality, and sophisticated allure. They combine the depth of purple with the energy of red, creating a rich emotional impact. These hues feel dramatic and confident, suggesting artistic mastery and creative depth.

Design Usage

Dark magentas add drama and sophistication to event branding and entertainment platforms. They work well in gradient transitions from dark to vibrant for immersive hero sections. Pair with dark backgrounds and bright accents for theatrical, high-contrast compositions.

Color Harmonies

Color Blindness Simulation

CSS Usage

background-color: #231A24;
color: #231A24;
border-color: #231A24;
Nearest Tailwind: Zinc 900 #18181B

Tailwind Shades

Contrast Checker

Text on white

16.87:1

AA Pass AAA Pass

Text on black

1.24:1

AA Fail AAA Fail

Compare With

Frequently Asked Questions

What are the RGB, HSL, and CMYK values of #231A24?

RGB(35, 26, 36) · HSL(294.0, 16.1%, 12.2%) · CMYK(2.8%, 27.8%, 0.0%, 85.9%)

Does #231A24 meet WCAG contrast on white?

16.87:1 — WCAG AA Pass, AAA Pass for normal text.

What text color is readable on #231A24?

Use FFFFFF text on a #231A24 background; contrast on black is 1.24:1.