Color #DEF045 Color / Colour Code #DEF045
This page shows the hex color code for color #def045 (#DEF045). The colour is a yellow tone with 85% saturation and 61% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #DEF045 against common backgrounds.
Complementary Colors
#DEF045 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 36, 66, and 96 degrees for harmonious combinations.
Triadic Palette
Three colors at 66, 186, and 306 degrees.
Color Palettes Using #DEF045
Five shades at lightness levels 15% through 85% while keeping hue at 66 and saturation at 85%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 66 to 111 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 66 with its complement at 246 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 #DEF045
Lightness variations at hue 66 and 85% saturation.
CSS Gradients with #DEF045
Design Use Cases for #DEF045
High-Impact Accent
With 85% saturation, #DEF045 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 61% lightness, #DEF045 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.
Attention & Optimism
#DEF045 is in the yellow spectrum (hue 66). Yellow attracts attention faster than any other color. Use it for warning labels, featured content markers, star ratings, and tooltip backgrounds. Pair with dark text since yellow often fails contrast checks against white.
Gradient Pairing
Create a gradient from #DEF045 (hue 66) to its complement at hue 246. For a subtler effect, try pairing with an analogous color at hue 96. Use CSS: background: linear-gradient(135deg, #def045, #5847f0);
CSS Code for #DEF045
Similar Colors
Colors visually similar to #DEF045 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #DEF045 across image editing and color design tools.
About Color #DEF045 (#DEF045)
#DEF045 is a yellow color (colour) with RGB channel values of 222 red, 240 green, and 69 blue. The green channel is dominant by a ratio of 3.5:1 over the weakest channel. In HSL terms, the hue sits at 66 degrees with 85% saturation and 61% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #DEF045 is 215/255 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 7% cyan, 0% magenta, 71% yellow, and 6% key (black).
The WCAG contrast ratio of #DEF045 against white is 1.26:1 and against black is 16.66:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 16.66:1, or use it exclusively for decorative purposes.
The complementary colour #5847F0 creates maximum visual tension when paired with #DEF045. For more harmonious color combinations, use the analogous colours #F0AC47 and #8BF047, 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 #DEF045
- 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 #DEF045?
- #DEF045 is Color #DEF045, a yellow color (colour) with RGB(222, 240, 69), HSL(66, 85%, 61%), and CMYK(7%, 0%, 71%, 6%). Its perceived brightness is 215/255.
- Is #DEF045 accessible for text?
- Against white, #DEF045 has a contrast ratio of 1.26:1 (fails AA for normal text). Against black, it has 16.66:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #DEF045?
- The complementary colour is #5847F0 (hue 246). For subtle color combinations, use analogous colours #F0AC47 and #8BF047. The triadic palette adds #47DFF0 and #F047DF for vibrant variety.
- How do I use #DEF045 in CSS?
- Use any format: color: #def045; or rgb(222, 240, 69); or hsl(66, 85%, 61%). For CSS custom properties: --color-primary: 66 85% 61%; 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.