Color #12455A Color / Colour Code #12455A
This page shows the hex color code for color #12455a (#12455A). The colour is a blue tone with 67% saturation and 21% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #12455A against common backgrounds.
Complementary Colors
#12455A paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 168, 198, and 228 degrees for harmonious combinations.
Triadic Palette
Three colors at 198, 318, and 78 degrees.
Color Palettes Using #12455A
Five shades at lightness levels 15% through 85% while keeping hue at 198 and saturation at 67%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 198 to 243 degrees create a warm, unified palette. This analogous scheme works for marketing materials, seasonal campaigns, and any design that needs visual warmth without clashing colors.
Combines the base color at hue 198 with its complement at 18 and two adjacent cool tones. This split-complementary approach provides strong visual contrast while remaining more balanced than a pure complementary scheme.
Five evenly spaced hues at 40% saturation and 80% lightness. Pastels are gentle on the eyes and work well for dashboards, onboarding screens, category tags, and any interface where multiple distinct colors are needed without visual aggression.
Shades & Tints of #12455A
Lightness variations at hue 198 and 67% saturation.
CSS Gradients with #12455A
Design Use Cases for #12455A
Vibrant Brand Color
#12455A has a strong 67% saturation that makes it ideal for brand identity elements. Use it for logos, primary call-to-action buttons, hero section accents, and marketing materials where visual impact matters. This saturation level is eye-catching without being harsh.
Deep Accent & Text Color
#12455A at 21% lightness is dark enough for readable body text on light backgrounds while retaining its blue character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Trust & Professional Identity
#12455A sits in the blue range (hue 198). Blue is the world's most popular color for corporate identities because it conveys trust, stability, and competence. Use it for navigation bars, link text, form focus states, and any element where user confidence matters. Financial, healthcare, and technology brands rely heavily on this hue range.
Gradient Pairing
Create a gradient from #12455A (hue 198) to its complement at hue 18. For a subtler effect, try pairing with an analogous color at hue 228. Use CSS: background: linear-gradient(135deg, #12455a, #592712);
CSS Code for #12455A
Similar Colors
Colors visually similar to #12455A based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #12455A across image editing and color design tools.
About Color #12455A (#12455A)
#12455A is a blue color (colour) with RGB channel values of 18 red, 69 green, and 90 blue. The blue channel is dominant by a ratio of 5.0:1 over the weakest channel. In HSL terms, the hue sits at 198 degrees with 67% saturation and 21% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #12455A is 56/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This appears dark to the human eye, so pair it with light text for adequate readability. For print production, the CMYK equivalent is 80% cyan, 23% magenta, 0% yellow, and 65% key (black).
The WCAG contrast ratio of #12455A against white is 10.37:1 and against black is 2.02:1. This exceeds the AAA requirement (7:1) for normal text on white, making it excellent for body text and small UI labels on light backgrounds.
The complementary colour #592712 creates maximum visual tension when paired with #12455A. For more harmonious color combinations, use the analogous colours #12594B and #122059, which sit 30 degrees on either side of the hue wheel. To build a complete design system, start with the monochromatic scale above for consistent shade variations, then add one complementary or triadic accent for interactive elements.
How to Explore Color #12455A
- Enter your color value in HEX format.
- The tool converts it to RGB, HSL, CMYK format in real time.
- Copy the converted value to your clipboard.
What is HEX to RGB, HSL, CMYK color conversion
Converting from HEX to RGB, HSL, CMYK translates a color value between two different color models. Different color models are used in web design (HEX, RGB), print (CMYK), and color theory (HSL, HSV).
Related Tools & Colors
Frequently Asked Questions
- What color / colour is #12455A?
- #12455A is Color #12455A, a blue color (colour) with RGB(18, 69, 90), HSL(198, 67%, 21%), and CMYK(80%, 23%, 0%, 65%). Its perceived brightness is 56/255.
- Is #12455A accessible for text?
- Against white, #12455A has a contrast ratio of 10.37:1 (passes AA for normal text). Against black, it has 2.02:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #12455A?
- The complementary colour is #592712 (hue 18). For subtle color combinations, use analogous colours #12594B and #122059. The triadic palette adds #591244 and #445912 for vibrant variety.
- How do I use #12455A in CSS?
- Use any format: color: #12455a; or rgb(18, 69, 90); or hsl(198, 67%, 21%). For CSS custom properties: --color-primary: 198 67% 21%; then use it as hsl(var(--color-primary)).
- Is this color / colour explorer free?
- Yes, completely free with no signup required. All colour calculations run in your browser. You can explore any valid hex color code, not just the pre-generated palette.