Color #172129 Color / Colour Code #172129
This page shows the hex color code for color #172129 (#172129). The colour is a blue tone with 28% saturation and 13% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #172129 against common backgrounds.
Complementary Colors
#172129 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 177, 207, and 237 degrees for harmonious combinations.
Triadic Palette
Three colors at 207, 327, and 87 degrees.
Color Palettes Using #172129
Five shades at lightness levels 15% through 85% while keeping hue at 207 and saturation at 28%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 207 to 252 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 207 with its complement at 27 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 #172129
Lightness variations at hue 207 and 28% saturation.
CSS Gradients with #172129
Design Use Cases for #172129
Muted Accent Color
With 28% saturation, #172129 has a subtle, sophisticated quality. This level of desaturation works well for secondary buttons, inactive states, subtle borders, and backgrounds that need a hint of color without being distracting. Muted colors communicate restraint and professionalism.
Dark Mode Background
At just 13% lightness, #172129 works as a dark mode background or overlay color. Dark backgrounds reduce eye strain in low-light environments and make bright accent colors pop. Pair with light text (minimum 4.5:1 contrast ratio) for readability.
Trust & Professional Identity
#172129 sits in the blue range (hue 207). 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 #172129 (hue 207) to its complement at hue 27. For a subtler effect, try pairing with an analogous color at hue 237. Use CSS: background: linear-gradient(135deg, #172129, #2a2018);
CSS Code for #172129
Similar Colors
Colors visually similar to #172129 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #172129 across image editing and color design tools.
About Color #172129 (#172129)
#172129 is a blue color (colour) with RGB channel values of 23 red, 33 green, and 41 blue. The blue channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 207 degrees with 28% saturation and 13% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #172129 is 31/255 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 44% cyan, 20% magenta, 0% yellow, and 84% key (black).
The WCAG contrast ratio of #172129 against white is 16.33:1 and against black is 1.29:1. 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 #2A2018 creates maximum visual tension when paired with #172129. For more harmonious color combinations, use the analogous colours #182A2A and #18192A, 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 #172129
- 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 #172129?
- #172129 is Color #172129, a blue color (colour) with RGB(23, 33, 41), HSL(207, 28%, 13%), and CMYK(44%, 20%, 0%, 84%). Its perceived brightness is 31/255.
- Is #172129 accessible for text?
- Against white, #172129 has a contrast ratio of 16.33:1 (passes AA for normal text). Against black, it has 1.29:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #172129?
- The complementary colour is #2A2018 (hue 27). For subtle color combinations, use analogous colours #182A2A and #18192A. The triadic palette adds #2A1822 and #222A18 for vibrant variety.
- How do I use #172129 in CSS?
- Use any format: color: #172129; or rgb(23, 33, 41); or hsl(207, 28%, 13%). For CSS custom properties: --color-primary: 207 28% 13%; 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.