Color #212003 Color / Colour Code #212003
This page shows the hex color code for color #212003 (#212003). The colour is a yellow tone with 83% saturation and 7% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #212003 against common backgrounds.
Complementary Colors
#212003 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 28, 58, and 88 degrees for harmonious combinations.
Triadic Palette
Three colors at 58, 178, and 298 degrees.
Color Palettes Using #212003
Five shades at lightness levels 15% through 85% while keeping hue at 58 and saturation at 83%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 58 to 103 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 58 with its complement at 238 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 #212003
Lightness variations at hue 58 and 83% saturation.
CSS Gradients with #212003
Design Use Cases for #212003
Vibrant Brand Color
#212003 has a strong 83% saturation that makes it ideal for brand identity elements. Use it for logos, primary call-to-action buttons, hero section accents, and marketing materials where visual impact matters. This saturation level is eye-catching without being harsh.
Dark Mode Background
At just 7% lightness, #212003 works as a dark mode background or overlay color. Dark backgrounds reduce eye strain in low-light environments and make bright accent colors pop. Pair with light text (minimum 4.5:1 contrast ratio) for readability.
Attention & Optimism
#212003 is in the yellow spectrum (hue 58). 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 #212003 (hue 58) to its complement at hue 238. For a subtler effect, try pairing with an analogous color at hue 88. Use CSS: background: linear-gradient(135deg, #212003, #030421);
CSS Code for #212003
Similar Colors
Colors visually similar to #212003 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #212003 across image editing and color design tools.
About Color #212003 (#212003)
#212003 is a yellow color (colour) with RGB channel values of 33 red, 32 green, and 3 blue. The red channel is dominant by a ratio of 11.0:1 over the weakest channel. In HSL terms, the hue sits at 58 degrees with 83% saturation and 7% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #212003 is 29/255 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 0% cyan, 3% magenta, 91% yellow, and 87% key (black).
The WCAG contrast ratio of #212003 against white is 16.50:1 and against black is 1.27:1. 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 #030421 creates maximum visual tension when paired with #212003. For more harmonious color combinations, use the analogous colours #211103 and #132103, 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 #212003
- 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 #212003?
- #212003 is Color #212003, a yellow color (colour) with RGB(33, 32, 3), HSL(58, 83%, 7%), and CMYK(0%, 3%, 91%, 87%). Its perceived brightness is 29/255.
- Is #212003 accessible for text?
- Against white, #212003 has a contrast ratio of 16.50:1 (passes AA for normal text). Against black, it has 1.27:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #212003?
- The complementary colour is #030421 (hue 238). For subtle color combinations, use analogous colours #211103 and #132103. The triadic palette adds #032120 and #200321 for vibrant variety.
- How do I use #212003 in CSS?
- Use any format: color: #212003; or rgb(33, 32, 3); or hsl(58, 83%, 7%). For CSS custom properties: --color-primary: 58 83% 7%; 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.