Color #2015EF Color / Colour Code #2015EF
This page shows the hex color code for color #2015ef (#2015EF). The colour is a blue tone with 87% saturation and 51% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #2015EF against common backgrounds.
Complementary Colors
#2015EF paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 213, 243, and 273 degrees for harmonious combinations.
Triadic Palette
Three colors at 243, 3, and 123 degrees.
Color Palettes Using #2015EF
Five shades at lightness levels 15% through 85% while keeping hue at 243 and saturation at 87%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 243 to 288 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 243 with its complement at 63 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 #2015EF
Lightness variations at hue 243 and 87% saturation.
CSS Gradients with #2015EF
Design Use Cases for #2015EF
High-Impact Accent
With 87% saturation, #2015EF is highly vivid. Reserve this for elements that need maximum attention: primary action buttons, notification badges, error states, or promotional banners. Use sparingly alongside neutral tones to avoid visual fatigue.
Soft Accent & Highlight
With 51% lightness, #2015EF has a softer, more approachable quality. It works well for hover states, subtle highlights, progress indicators, and secondary UI elements. This lightness range is particularly effective for tag backgrounds and status indicators.
Trust & Professional Identity
#2015EF sits in the blue range (hue 243). 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 #2015EF (hue 243) to its complement at hue 63. For a subtler effect, try pairing with an analogous color at hue 273. Use CSS: background: linear-gradient(135deg, #2015ef, #e4ef15);
CSS Code for #2015EF
Similar Colors
Colors visually similar to #2015EF based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #2015EF across image editing and color design tools.
About Color #2015EF (#2015EF)
#2015EF is a blue color (colour) with RGB channel values of 32 red, 21 green, and 239 blue. The blue channel is dominant by a ratio of 11.4:1 over the weakest channel. In HSL terms, the hue sits at 243 degrees with 87% saturation and 51% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #2015EF is 49/255 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, 91% magenta, 0% yellow, and 6% key (black).
The WCAG contrast ratio of #2015EF against white is 8.70:1 and against black is 2.42:1. 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 #E4EF15 creates maximum visual tension when paired with #2015EF. For more harmonious color combinations, use the analogous colours #1577EF and #8D15EF, 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 #2015EF
- 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 #2015EF?
- #2015EF is Color #2015EF, a blue color (colour) with RGB(32, 21, 239), HSL(243, 87%, 51%), and CMYK(87%, 91%, 0%, 6%). Its perceived brightness is 49/255.
- Is #2015EF accessible for text?
- Against white, #2015EF has a contrast ratio of 8.70:1 (passes AA for normal text). Against black, it has 2.42:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #2015EF?
- The complementary colour is #E4EF15 (hue 63). For subtle color combinations, use analogous colours #1577EF and #8D15EF. The triadic palette adds #EF2015 and #15EF20 for vibrant variety.
- How do I use #2015EF in CSS?
- Use any format: color: #2015ef; or rgb(32, 21, 239); or hsl(243, 87%, 51%). For CSS custom properties: --color-primary: 243 87% 51%; 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.