Color #424B00 Color / Colour Code #424B00
This page shows the hex color code for color #424b00 (#424B00). The colour is a yellow tone with 100% saturation and 15% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #424B00 against common backgrounds.
Complementary Colors
#424B00 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 37, 67, and 97 degrees for harmonious combinations.
Triadic Palette
Three colors at 67, 187, and 307 degrees.
Color Palettes Using #424B00
Five shades at lightness levels 15% through 85% while keeping hue at 67 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 67 to 112 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 67 with its complement at 247 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 #424B00
Lightness variations at hue 67 and 100% saturation.
CSS Gradients with #424B00
Design Use Cases for #424B00
High-Impact Accent
With 100% saturation, #424B00 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.
Deep Accent & Text Color
#424B00 at 15% lightness is dark enough for readable body text on light backgrounds while retaining its yellow character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Attention & Optimism
#424B00 is in the yellow spectrum (hue 67). 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 #424B00 (hue 67) to its complement at hue 247. For a subtler effect, try pairing with an analogous color at hue 97. Use CSS: background: linear-gradient(135deg, #424b00, #09004d);
CSS Code for #424B00
Similar Colors
Colors visually similar to #424B00 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #424B00 across image editing and color design tools.
About Color #424B00 (#424B00)
#424B00 is a yellow color (colour) with RGB channel values of 66 red, 75 green, and 0 blue. The green channel is dominant by a ratio of 75.0:1 over the weakest channel. In HSL terms, the hue sits at 67 degrees with 100% saturation and 15% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #424B00 is 64/255 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 12% cyan, 0% magenta, 100% yellow, and 71% key (black).
The WCAG contrast ratio of #424B00 against white is 9.38:1 and against black is 2.24:1. 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 #09004D creates maximum visual tension when paired with #424B00. For more harmonious color combinations, use the analogous colours #4D2F00 and #1D4D00, 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 #424B00
- 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 #424B00?
- #424B00 is Color #424B00, a yellow color (colour) with RGB(66, 75, 0), HSL(67, 100%, 15%), and CMYK(12%, 0%, 100%, 71%). Its perceived brightness is 64/255.
- Is #424B00 accessible for text?
- Against white, #424B00 has a contrast ratio of 9.38:1 (passes AA for normal text). Against black, it has 2.24:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #424B00?
- The complementary colour is #09004D (hue 247). For subtle color combinations, use analogous colours #4D2F00 and #1D4D00. The triadic palette adds #00444D and #4D0044 for vibrant variety.
- How do I use #424B00 in CSS?
- Use any format: color: #424b00; or rgb(66, 75, 0); or hsl(67, 100%, 15%). For CSS custom properties: --color-primary: 67 100% 15%; 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.