Color #0D171F Color / Colour Code #0D171F
This page shows the hex color code for color #0d171f (#0D171F). The colour is a blue tone with 41% saturation and 9% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #0D171F against common backgrounds.
Complementary Colors
#0D171F 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 #0D171F
Five shades at lightness levels 15% through 85% while keeping hue at 207 and saturation at 41%. 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 #0D171F
Lightness variations at hue 207 and 41% saturation.
CSS Gradients with #0D171F
Design Use Cases for #0D171F
Balanced UI Color
At 41% saturation, #0D171F strikes a balance between vibrancy and restraint. This makes it versatile for primary UI elements like navigation bars, card headers, and form accents. It draws attention without overwhelming adjacent content.
Dark Mode Background
At just 9% lightness, #0D171F 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
#0D171F 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 #0D171F (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, #0d171f, #20160e);
CSS Code for #0D171F
Similar Colors
Colors visually similar to #0D171F based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #0D171F across image editing and color design tools.
About Color #0D171F (#0D171F)
#0D171F is a blue color (colour) with RGB channel values of 13 red, 23 green, and 31 blue. The blue channel is dominant by a ratio of 2.4:1 over the weakest channel. In HSL terms, the hue sits at 207 degrees with 41% saturation and 9% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #0D171F is 21/255 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 58% cyan, 26% magenta, 0% yellow, and 88% key (black).
The WCAG contrast ratio of #0D171F against white is 18.11:1 and against black is 1.16:1. 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 #20160E creates maximum visual tension when paired with #0D171F. For more harmonious color combinations, use the analogous colours #0E201F and #0E0E20, 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 #0D171F
- 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 #0D171F?
- #0D171F is Color #0D171F, a blue color (colour) with RGB(13, 23, 31), HSL(207, 41%, 9%), and CMYK(58%, 26%, 0%, 88%). Its perceived brightness is 21/255.
- Is #0D171F accessible for text?
- Against white, #0D171F has a contrast ratio of 18.11:1 (passes AA for normal text). Against black, it has 1.16:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #0D171F?
- The complementary colour is #20160E (hue 27). For subtle color combinations, use analogous colours #0E201F and #0E0E20. The triadic palette adds #200E18 and #18200E for vibrant variety.
- How do I use #0D171F in CSS?
- Use any format: color: #0d171f; or rgb(13, 23, 31); or hsl(207, 41%, 9%). For CSS custom properties: --color-primary: 207 41% 9%; 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.