Color #0033DB Color / Colour Code #0033DB
This page shows the hex color code for color #0033db (#0033DB). The colour is a blue tone with 100% saturation and 43% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #0033DB against common backgrounds.
Complementary Colors
#0033DB paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 196, 226, and 256 degrees for harmonious combinations.
Triadic Palette
Three colors at 226, 346, and 106 degrees.
Color Palettes Using #0033DB
Five shades at lightness levels 15% through 85% while keeping hue at 226 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 226 to 271 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 226 with its complement at 46 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 #0033DB
Lightness variations at hue 226 and 100% saturation.
CSS Gradients with #0033DB
Design Use Cases for #0033DB
High-Impact Accent
With 100% saturation, #0033DB 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 43% lightness, #0033DB 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
#0033DB sits in the blue range (hue 226). 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 #0033DB (hue 226) to its complement at hue 46. For a subtler effect, try pairing with an analogous color at hue 256. Use CSS: background: linear-gradient(135deg, #0033db, #dba800);
CSS Code for #0033DB
Similar Colors
Colors visually similar to #0033DB based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #0033DB across image editing and color design tools.
About Color #0033DB (#0033DB)
#0033DB is a blue color (colour) with RGB channel values of 0 red, 51 green, and 219 blue. The blue channel is dominant by a ratio of 219.0:1 over the weakest channel. In HSL terms, the hue sits at 226 degrees with 100% saturation and 43% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #0033DB is 55/255 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, 77% magenta, 0% yellow, and 14% key (black).
The WCAG contrast ratio of #0033DB against white is 8.41:1 and against black is 2.50:1. 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 #DBA800 creates maximum visual tension when paired with #0033DB. For more harmonious color combinations, use the analogous colours #00A1DB and #3A00DB, 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 #0033DB
- 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 #0033DB?
- #0033DB is Color #0033DB, a blue color (colour) with RGB(0, 51, 219), HSL(226, 100%, 43%), and CMYK(100%, 77%, 0%, 14%). Its perceived brightness is 55/255.
- Is #0033DB accessible for text?
- Against white, #0033DB has a contrast ratio of 8.41:1 (passes AA for normal text). Against black, it has 2.50:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #0033DB?
- The complementary colour is #DBA800 (hue 46). For subtle color combinations, use analogous colours #00A1DB and #3A00DB. The triadic palette adds #DB0033 and #33DB00 for vibrant variety.
- How do I use #0033DB in CSS?
- Use any format: color: #0033db; or rgb(0, 51, 219); or hsl(226, 100%, 43%). For CSS custom properties: --color-primary: 226 100% 43%; 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.