Color #ECF0F9 Color / Colour Code #ECF0F9
This page shows the hex color code for color #ecf0f9 (#ECF0F9). The colour is a blue tone with 52% saturation and 95% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #ECF0F9 against common backgrounds.
Complementary Colors
#ECF0F9 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 192, 222, and 252 degrees for harmonious combinations.
Triadic Palette
Three colors at 222, 342, and 102 degrees.
Color Palettes Using #ECF0F9
Five shades at lightness levels 15% through 85% while keeping hue at 222 and saturation at 52%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 222 to 267 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 222 with its complement at 42 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 #ECF0F9
Lightness variations at hue 222 and 52% saturation.
CSS Gradients with #ECF0F9
Design Use Cases for #ECF0F9
Balanced UI Color
At 52% saturation, #ECF0F9 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.
Near-White Background
At 95% lightness, #ECF0F9 is very close to white but carries a subtle blue tint. This is perfect for alternating row backgrounds in tables, subtle section differentiation, and adding warmth or coolness to an otherwise stark white design.
Trust & Professional Identity
#ECF0F9 sits in the blue range (hue 222). 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 #ECF0F9 (hue 222) to its complement at hue 42. For a subtler effect, try pairing with an analogous color at hue 252. Use CSS: background: linear-gradient(135deg, #ecf0f9, #f9f5ec);
CSS Code for #ECF0F9
Similar Colors
Colors visually similar to #ECF0F9 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #ECF0F9 across image editing and color design tools.
About Color #ECF0F9 (#ECF0F9)
#ECF0F9 is a blue color (colour) with RGB channel values of 236 red, 240 green, and 249 blue. The blue channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 222 degrees with 52% saturation and 95% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #ECF0F9 is 240/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This means it appears bright to the human eye and is best paired with dark text for readability. For print production, the CMYK equivalent is 5% cyan, 4% magenta, 0% yellow, and 2% key (black).
The WCAG contrast ratio of #ECF0F9 against white is 1.14:1 and against black is 18.40:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 18.40:1, or use it exclusively for decorative purposes.
The complementary colour #F9F5EC creates maximum visual tension when paired with #ECF0F9. For more harmonious color combinations, use the analogous colours #ECF6F9 and #EEECF9, 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 #ECF0F9
- 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 #ECF0F9?
- #ECF0F9 is Color #ECF0F9, a blue color (colour) with RGB(236, 240, 249), HSL(222, 52%, 95%), and CMYK(5%, 4%, 0%, 2%). Its perceived brightness is 240/255.
- Is #ECF0F9 accessible for text?
- Against white, #ECF0F9 has a contrast ratio of 1.14:1 (fails AA for normal text). Against black, it has 18.40:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #ECF0F9?
- The complementary colour is #F9F5EC (hue 42). For subtle color combinations, use analogous colours #ECF6F9 and #EEECF9. The triadic palette adds #F9ECF0 and #F0F9EC for vibrant variety.
- How do I use #ECF0F9 in CSS?
- Use any format: color: #ecf0f9; or rgb(236, 240, 249); or hsl(222, 52%, 95%). For CSS custom properties: --color-primary: 222 52% 95%; 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.