Gulf Blue

#100558

General Information about Gulf Blue

The hexadecimal color #100558, commonly known as Gulf Blue, is a deep, dark shade of blue situated in the blue-violet spectrum. It's composed of 6.27% red, 1.96% green, and 34.51% blue. This color is often associated with depth, stability, and sophistication, making it a popular choice in various design applications. In the RGB color model, it is represented as (16, 5, 88), while in the CMYK color model, it is (82, 94, 0, 65). Understanding these color models helps designers accurately reproduce and utilize the color across different media, ensuring consistency in branding and visual communication. Gulf Blue's unique composition provides a versatile base for creating harmonious color palettes.

The color #100558, also known as Gulf Blue, presents significant accessibility challenges, particularly in web design. Its low luminance of approximately 2% means that text or interactive elements using this color as a background require very light foreground colors to meet WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. For normal text (AA compliance), a contrast ratio of 4.5:1 is needed, and for large text (14pt bold or 18pt regular) a contrast ratio of 3:1 is necessary. Using #100558 as a background with insufficient contrast can make content illegible for users with low vision or color blindness. Careful consideration and testing with accessibility tools are crucial to ensure inclusive design when incorporating this deep blue hue.

Shades

Digital Color Formats

RGB
16 5 88
RGB16 5 88
Red
Green
Blue
HSL
247.95deg 89.25% 18.24%
247.9589.2518.24HSL
Hue
Saturation
Lightness
HWB
247.95deg 1.96% 65.49%
247.951.9665.49HWB
Hue
Whiteness
Blackness
hex#100558
rgb16 5 88
hsl247.95deg 89.25% 18.24%
cmyk81.82% 94.32% 0% 65.49%
hwb247.95deg 1.96% 65.49%
xyz-d650.02 0.01 0.09
oklch0.2252 0.1336 273.66
oklab0.2252 0.01 -0.13
CMYK
81.82% 94.32% 0% 65.49%
81.8294.32065.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.02 0.01 0.09
0.020.010.09XYZ
X
Y
Z
OKLCH
0.2252 0.1336 273.66
0.22520.1336273.66LCH
Lightness
Chroma
Hue
OKLAB
0.2252 0.01 -0.13
0.22520.01-0.13LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons