Color #00A1E3 Color / Colour Code #00A1E3
This page shows the hex color code for color #00a1e3 (#00A1E3). The colour is a blue tone with 100% saturation and 45% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #00A1E3 against common backgrounds.
Complementary Colors
#00A1E3 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 167, 197, and 227 degrees for harmonious combinations.
Triadic Palette
Three colors at 197, 317, and 77 degrees.
Color Palettes Using #00A1E3
Five shades at lightness levels 15% through 85% while keeping hue at 197 and saturation at 100%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 197 to 242 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 197 with its complement at 17 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 #00A1E3
Lightness variations at hue 197 and 100% saturation.
CSS Gradients with #00A1E3
Design Use Cases for #00A1E3
High-Impact Accent
With 100% saturation, #00A1E3 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.
Primary Interface Color
At 45% lightness, #00A1E3 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
#00A1E3 sits in the blue range (hue 197). 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 #00A1E3 (hue 197) to its complement at hue 17. For a subtler effect, try pairing with an analogous color at hue 227. Use CSS: background: linear-gradient(135deg, #00a1e3, #e64100);
CSS Code for #00A1E3
Similar Colors
Colors visually similar to #00A1E3 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #00A1E3 across image editing and color design tools.
About Color #00A1E3 (#00A1E3)
#00A1E3 is a blue color (colour) with RGB channel values of 0 red, 161 green, and 227 blue. The blue channel is dominant by a ratio of 227.0:1 over the weakest channel. In HSL terms, the hue sits at 197 degrees with 100% saturation and 45% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #00A1E3 is 120/255 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 100% cyan, 29% magenta, 0% yellow, and 11% key (black).
The WCAG contrast ratio of #00A1E3 against white is 2.91:1 and against black is 7.21:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 7.21:1, or use it exclusively for decorative purposes.
The complementary colour #E64100 creates maximum visual tension when paired with #00A1E3. For more harmonious color combinations, use the analogous colours #00E6B4 and #0032E6, 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 #00A1E3
- 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 #00A1E3?
- #00A1E3 is Color #00A1E3, a blue color (colour) with RGB(0, 161, 227), HSL(197, 100%, 45%), and CMYK(100%, 29%, 0%, 11%). Its perceived brightness is 120/255.
- Is #00A1E3 accessible for text?
- Against white, #00A1E3 has a contrast ratio of 2.91:1 (fails AA for normal text). Against black, it has 7.21:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #00A1E3?
- The complementary colour is #E64100 (hue 17). For subtle color combinations, use analogous colours #00E6B4 and #0032E6. The triadic palette adds #E600A4 and #A4E600 for vibrant variety.
- How do I use #00A1E3 in CSS?
- Use any format: color: #00a1e3; or rgb(0, 161, 227); or hsl(197, 100%, 45%). For CSS custom properties: --color-primary: 197 100% 45%; 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.