Gray 800 Color / Colour Code #1F2937
This page shows the hex color code for gray 800 (#1F2937). The colour is a neutral tone with 28% saturation and 17% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #1F2937 against common backgrounds.
Complementary Colors
#1F2937 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 185, 215, and 245 degrees for harmonious combinations.
Triadic Palette
Three colors at 215, 335, and 95 degrees.
Color Palettes Using #1F2937
Five shades at lightness levels 15% through 85% while keeping hue at 215 and saturation at 28%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 215 to 260 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 215 with its complement at 35 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 #1F2937
Lightness variations at hue 215 and 28% saturation.
CSS Gradients with #1F2937
Design Use Cases for #1F2937
Muted Accent Color
With 28% saturation, #1F2937 has a subtle, sophisticated quality. This level of desaturation works well for secondary buttons, inactive states, subtle borders, and backgrounds that need a hint of color without being distracting. Muted colors communicate restraint and professionalism.
Deep Accent & Text Color
#1F2937 at 17% lightness is dark enough for readable body text on light backgrounds while retaining its blue character. Use for headings, emphasized text, or deep accent borders. It provides contrast without the harshness of pure black.
Trust & Professional Identity
#1F2937 sits in the blue range (hue 215). Blue is the world's most popular color for corporate identities because it conveys trust, stability, and competence. Use it for navigation bars, link text, form focus states, and any element where user confidence matters. Financial, healthcare, and technology brands rely heavily on this hue range.
Gradient Pairing
Create a gradient from #1F2937 (hue 215) to its complement at hue 35. For a subtler effect, try pairing with an analogous color at hue 245. Use CSS: background: linear-gradient(135deg, #1f2937, #372d1f);
CSS Code for #1F2937
Similar Colors
Colors visually similar to #1F2937 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #1F2937 across image editing and color design tools.
About Gray 800 (#1F2937)
#1F2937 is a neutral color (colour) with RGB channel values of 31 red, 41 green, and 55 blue. The blue channel is dominant with a relatively balanced channel distribution. In HSL terms, the hue sits at 215 degrees with 28% saturation and 17% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #1F2937 is 40/255 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 44% cyan, 25% magenta, 0% yellow, and 78% key (black).
The WCAG contrast ratio of #1F2937 against white is 14.68:1 and against black is 1.43:1. 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 #372D1F creates maximum visual tension when paired with #1F2937. For more harmonious color combinations, use the analogous colours #1F3537 and #211F37, 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 #1F2937
- 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 #1F2937?
- #1F2937 is Gray 800, a neutral color (colour) with RGB(31, 41, 55), HSL(215, 28%, 17%), and CMYK(44%, 25%, 0%, 78%). Its perceived brightness is 40/255.
- Is #1F2937 accessible for text?
- Against white, #1F2937 has a contrast ratio of 14.68:1 (passes AA for normal text). Against black, it has 1.43:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #1F2937?
- The complementary colour is #372D1F (hue 35). For subtle color combinations, use analogous colours #1F3537 and #211F37. The triadic palette adds #371F29 and #29371F for vibrant variety.
- How do I use #1F2937 in CSS?
- Use any format: color: #1f2937; or rgb(31, 41, 55); or hsl(215, 28%, 17%). For CSS custom properties: --color-primary: 215 28% 17%; 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.