#3F3E4E

Accessibility

AAA

10.45:1

Vs white / black

10.45:1 · 2.01:1

Sources

Library color

Codes

Formats

HEX

#3f3e4e

RGB

rgb(63, 62, 78)

RGBA

rgba(63, 62, 78, 1)

HSL

hsl(244, 11%, 27%)

HSLA

hsla(244, 11%, 27%, 1)

HSV

hsv(244, 21%, 31%)

LAB

lab(26.88% 4.33 -9.52)

LCH

lch(26.88% 10.46 294.46)

OKLAB

oklab(0.3713 0.0084 -0.0259)

OKLCH

oklch(0.3713 0.0272 287.97)

XYZ

xyz(5.15, 5.05, 7.91)

CMYK

cmyk(19%, 21%, 0%, 69%)

CSS

color: #3f3e4e;

CSS variable

--color-3f3e4e: #3f3e4e;

SCSS

$color-3f3e4e: #3f3e4e;

JavaScript

const color = "#3f3e4e";

TypeScript

const color: string = "#3f3e4e";

React

style={{ backgroundColor: "#3f3e4e" }}

JSON

{ "hex": "#3f3e4e", "rgb": { "r": 63, "g": 62, "b": 78 }, "oklch": "oklch(0.3713 0.0272 287.97)" }

Export

Developer code

css

:root {
  --#3f3e4e-1: #3f3e4e;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

zinc-700

Noticeably different · ΔE 4.84 · #3F3F46

Nearest CSS named color

DarkSlateBlue

Very different · ΔE 16.35 · #483D8B

Nearest Material color

grey-800

Very different · ΔE 9.18 · #424242

Nearest Bootstrap color

dark

Very different · ΔE 11.77 · #212529

OKLCH

Perceptual 50–950 scale

Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.

50f4f3ff 100e7e6f5 200d3d2e2 300bcbccd 400a09fb2 500858496 6006f6e7e 700585865 80043424e 9002e2e39 9501a1923

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

efeff0 dfdfe2 cfcfd3 bfbfc4 afafb5 9f9fa7 8f8e98 7f7e89 6f6e7a 5f5e6c 4f4e5d 3f3e4e 3a3948 353441 2f2f3b 2a2934 25242d 201f27 1a1a21 15151a 101014 0a0a0d 050507

Palette

Tints

Mixed toward white — soft backgrounds and highlights

efeff0 dfdfe2 cfcfd3 bfbfc4 afafb5 9f9fa7 8f8e98 7f7e89 6f6e7a 5f5e6c 4f4e5d

Palette

Shades

Mixed toward black — depth, text, and emphasis

3a3948 353441 2f2f3b 2a2934 25242d 201f27 1a1a21 15151a 101014 0a0a0d 050507

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

444452 4a4956 4f4f5b 55545f 5a5a63 605f67 65656b 6a6a6f 707074 757578 7b7b7c

Harmony

Complementary

Opposite on the color wheel for contrast

#3F3E4EStop 1 #4B4C3DStop 2

Harmony

Analogous

Neighbors that sit comfortably together

#3D444CStop 1 #3F3E4EStop 2 #463D4CStop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#3F3E4EStop 1 #4C3E3DStop 2 #3D4C3EStop 3

Harmony

Split complementary

Base plus two accents beside the complement

#3F3E4EStop 1 #4C463DStop 2 #444C3DStop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#2E2D39Stop 1 #514F63Stop 2 #73718EStop 3 #9D9CB0Stop 4 #C7C6D2Stop 5

Using this color

Where #3f3e4e works

#3F3E4E (#3f3e4e) sits in the indigo family at about 244° hue, 11% saturation, and 27% lightness. Contrast is 10.45:1 on white and 2.01:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: zinc-700 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #3f3e4e is 2.01:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Low saturation makes this easy to overuse as a neutral. Keep one chromatic accent elsewhere so the interface does not go muddy.

Family context: Intuition, depth, and sincerity. Common in enterprise software and thoughtful products. Common uses still include buttons, charts, and accents in the Indigo range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Tailwind zinc 700#3F3F46 Tailwind gray 700#374151 Tailwind slate 700#334155 Tailwind zinc 600#52525B Midnight Blue#2C3E50 Tailwind neutral 700#404040 Material Grey 800#424242 Chakra gray 600#4A5568 Tailwind slate 800#1E293B Tailwind gray 600#4B5563 Tailwind gray 800#1F2937 Tailwind slate 600#475569