Color #6337CC Color / Colour Code #6337CC
This page shows the hex color code for color #6337cc (#6337CC). The colour is a purple tone with 59% saturation and 51% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #6337CC against common backgrounds.
Complementary Colors
#6337CC paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 228, 258, and 288 degrees for harmonious combinations.
Triadic Palette
Three colors at 258, 18, and 138 degrees.
Color Palettes Using #6337CC
Five shades at lightness levels 15% through 85% while keeping hue at 258 and saturation at 59%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 258 to 303 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 258 with its complement at 78 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 #6337CC
Lightness variations at hue 258 and 59% saturation.
CSS Gradients with #6337CC
Design Use Cases for #6337CC
Balanced UI Color
At 59% saturation, #6337CC strikes a balance between vibrancy and restraint. This makes it versatile for primary UI elements like navigation bars, card headers, and form accents. It draws attention without overwhelming adjacent content.
Soft Accent & Highlight
With 51% lightness, #6337CC 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.
Creativity & Premium Positioning
#6337CC falls in the purple spectrum (hue 258). 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 #6337CC (hue 258) to its complement at hue 78. For a subtler effect, try pairing with an analogous color at hue 288. Use CSS: background: linear-gradient(135deg, #6337cc, #a0cc38);
CSS Code for #6337CC
Similar Colors
Colors visually similar to #6337CC based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #6337CC across image editing and color design tools.
About Color #6337CC (#6337CC)
#6337CC is a purple color (colour) with RGB channel values of 99 red, 55 green, and 204 blue. The blue channel is dominant by a ratio of 3.7:1 over the weakest channel. In HSL terms, the hue sits at 258 degrees with 59% saturation and 51% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #6337CC is 85/255 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 51% cyan, 73% magenta, 0% yellow, and 20% key (black).
The WCAG contrast ratio of #6337CC against white is 7.12:1 and against black is 2.95:1. 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 #A0CC38 creates maximum visual tension when paired with #6337CC. For more harmonious color combinations, use the analogous colours #3856CC and #AE38CC, 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 #6337CC
- 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 #6337CC?
- #6337CC is Color #6337CC, a purple color (colour) with RGB(99, 55, 204), HSL(258, 59%, 51%), and CMYK(51%, 73%, 0%, 20%). Its perceived brightness is 85/255.
- Is #6337CC accessible for text?
- Against white, #6337CC has a contrast ratio of 7.12:1 (passes AA for normal text). Against black, it has 2.95:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #6337CC?
- The complementary colour is #A0CC38 (hue 78). For subtle color combinations, use analogous colours #3856CC and #AE38CC. The triadic palette adds #CC6538 and #38CC65 for vibrant variety.
- How do I use #6337CC in CSS?
- Use any format: color: #6337cc; or rgb(99, 55, 204); or hsl(258, 59%, 51%). For CSS custom properties: --color-primary: 258 59% 51%; 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.