Color #400557 Color / Colour Code #400557
This page shows the hex color code for color #400557 (#400557). The colour is a purple tone with 89% saturation and 18% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #400557 against common backgrounds.
Complementary Colors
#400557 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 253, 283, and 313 degrees for harmonious combinations.
Triadic Palette
Three colors at 283, 43, and 163 degrees.
Color Palettes Using #400557
Five shades at lightness levels 15% through 85% while keeping hue at 283 and saturation at 89%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 283 to 328 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 283 with its complement at 103 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 #400557
Lightness variations at hue 283 and 89% saturation.
CSS Gradients with #400557
Design Use Cases for #400557
High-Impact Accent
With 89% saturation, #400557 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
#400557 at 18% lightness is dark enough for readable body text on light backgrounds while retaining its purple character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Creativity & Premium Positioning
#400557 falls in the purple spectrum (hue 283). Purple communicates creativity, wisdom, and luxury. It is effective for premium product highlights, creative portfolio accents, meditation app interfaces, and rewards program branding. Purple occupies a unique space between the energy of red and the calm of blue.
Gradient Pairing
Create a gradient from #400557 (hue 283) to its complement at hue 103. For a subtler effect, try pairing with an analogous color at hue 313. Use CSS: background: linear-gradient(135deg, #400557, #1c5705);
CSS Code for #400557
Similar Colors
Colors visually similar to #400557 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #400557 across image editing and color design tools.
About Color #400557 (#400557)
#400557 is a purple color (colour) with RGB channel values of 64 red, 5 green, and 87 blue. The blue channel is dominant by a ratio of 17.4:1 over the weakest channel. In HSL terms, the hue sits at 283 degrees with 89% saturation and 18% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #400557 is 32/255 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 26% cyan, 94% magenta, 0% yellow, and 66% key (black).
The WCAG contrast ratio of #400557 against white is 15.25:1 and against black is 1.38:1. 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 #1C5705 creates maximum visual tension when paired with #400557. For more harmonious color combinations, use the analogous colours #170557 and #570545, 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 #400557
- 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 #400557?
- #400557 is Color #400557, a purple color (colour) with RGB(64, 5, 87), HSL(283, 89%, 18%), and CMYK(26%, 94%, 0%, 66%). Its perceived brightness is 32/255.
- Is #400557 accessible for text?
- Against white, #400557 has a contrast ratio of 15.25:1 (passes AA for normal text). Against black, it has 1.38:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #400557?
- The complementary colour is #1C5705 (hue 103). For subtle color combinations, use analogous colours #170557 and #570545. The triadic palette adds #574005 and #055740 for vibrant variety.
- How do I use #400557 in CSS?
- Use any format: color: #400557; or rgb(64, 5, 87); or hsl(283, 89%, 18%). For CSS custom properties: --color-primary: 283 89% 18%; 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.