Color #175CB1 Color / Colour Code #175CB1
This page shows the hex color code for color #175cb1 (#175CB1). The colour is a blue tone with 77% saturation and 39% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #175CB1 against common backgrounds.
Complementary Colors
#175CB1 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 183, 213, and 243 degrees for harmonious combinations.
Triadic Palette
Three colors at 213, 333, and 93 degrees.
Color Palettes Using #175CB1
Five shades at lightness levels 15% through 85% while keeping hue at 213 and saturation at 77%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 213 to 258 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 213 with its complement at 33 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 #175CB1
Lightness variations at hue 213 and 77% saturation.
CSS Gradients with #175CB1
Design Use Cases for #175CB1
Vibrant Brand Color
#175CB1 has a strong 77% 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.
Primary Interface Color
At 39% lightness, #175CB1 is in the mid-range, making it ideal for interactive elements like buttons, links, and selected states. This lightness level ensures good contrast against both light and dark adjacent elements in most layouts.
Trust & Professional Identity
#175CB1 sits in the blue range (hue 213). 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 #175CB1 (hue 213) to its complement at hue 33. For a subtler effect, try pairing with an analogous color at hue 243. Use CSS: background: linear-gradient(135deg, #175cb1, #b06b17);
CSS Code for #175CB1
Similar Colors
Colors visually similar to #175CB1 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #175CB1 across image editing and color design tools.
About Color #175CB1 (#175CB1)
#175CB1 is a blue color (colour) with RGB channel values of 23 red, 92 green, and 177 blue. The blue channel is dominant by a ratio of 7.7:1 over the weakest channel. In HSL terms, the hue sits at 213 degrees with 77% saturation and 39% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #175CB1 is 81/255 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 87% cyan, 48% magenta, 0% yellow, and 31% key (black).
The WCAG contrast ratio of #175CB1 against white is 6.56:1 and against black is 3.20:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 27% lightness.
The complementary colour #B06B17 creates maximum visual tension when paired with #175CB1. For more harmonious color combinations, use the analogous colours #17A8B0 and #1F17B0, 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 #175CB1
- 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 #175CB1?
- #175CB1 is Color #175CB1, a blue color (colour) with RGB(23, 92, 177), HSL(213, 77%, 39%), and CMYK(87%, 48%, 0%, 31%). Its perceived brightness is 81/255.
- Is #175CB1 accessible for text?
- Against white, #175CB1 has a contrast ratio of 6.56:1 (passes AA for normal text). Against black, it has 3.20:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #175CB1?
- The complementary colour is #B06B17 (hue 33). For subtle color combinations, use analogous colours #17A8B0 and #1F17B0. The triadic palette adds #B0175C and #5CB017 for vibrant variety.
- How do I use #175CB1 in CSS?
- Use any format: color: #175cb1; or rgb(23, 92, 177); or hsl(213, 77%, 39%). For CSS custom properties: --color-primary: 213 77% 39%; 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.