Cerulean Blue

#305FB6

General Information about Cerulean Blue

Cerulean Blue, represented by the hex code #305FB6, is a captivating shade of blue that sits between cyan and azure on the color spectrum. It is often associated with the sky and sea, evoking feelings of tranquility, calmness, and serenity. This color is widely used in various design fields, including web design, graphic design, and interior decoration, to create a sense of openness and relaxation. Historically, cerulean pigment was derived from tin oxide and was prized for its stable and vibrant hue. In the digital realm, #305FB6 is a popular choice for backgrounds, buttons, and accents, adding a touch of sophistication and clarity to visual compositions. Its versatility makes it suitable for both modern and traditional design styles.

The hex color #305FB6, also known as Cerulean Blue, presents some accessibility challenges, particularly in text applications. When used as text against a white background, the contrast ratio may not meet the WCAG (Web Content Accessibility Guidelines) requirements for level AA compliance, which mandates a contrast ratio of at least 4.5:1 for normal text. Therefore, it's crucial to pair this color with lighter shades for backgrounds or use it for larger text elements where the contrast is less critical. For improved accessibility, consider using darker shades for text or pairing it with complementary colors that enhance visual contrast. Tools such as contrast checkers can help determine appropriate color pairings to ensure readability and inclusivity for all users, including those with visual impairments. Always prioritize testing your color combinations with real users to validate accessibility.

Shades

Digital Color Formats

RGB
48 95 182
RGB48 95 182
Red
Green
Blue
HSL
218.96deg 58.26% 45.1%
218.9658.2645.1HSL
Hue
Saturation
Lightness
HWB
218.96deg 18.82% 28.63%
218.9618.8228.63HWB
Hue
Whiteness
Blackness
hex#305FB6
rgb48 95 182
hsl218.96deg 58.26% 45.1%
cmyk73.63% 47.8% 0% 28.63%
hwb218.96deg 18.82% 28.63%
xyz-d650.14 0.12 0.46
oklch0.5006 0.1474 261.43
oklab0.5006 -0.02 -0.15
CMYK
73.63% 47.8% 0% 28.63%
73.6347.8028.63CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.12 0.46
0.140.120.46XYZ
X
Y
Z
OKLCH
0.5006 0.1474 261.43
0.50060.1474261.43LCH
Lightness
Chroma
Hue
OKLAB
0.5006 -0.02 -0.15
0.5006-0.02-0.15LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons