#3B4450

Accessibility

AAA

9.87:1

Vs white / black

9.87:1 · 2.13:1

Sources

Library color

Codes

Formats

HEX

#3b4450

RGB

rgb(59, 68, 80)

RGBA

rgba(59, 68, 80, 1)

HSL

hsl(214, 15%, 27%)

HSLA

hsla(214, 15%, 27%, 1)

HSV

hsv(214, 26%, 31%)

LAB

lab(28.49% -0.54 -8.42)

LCH

lch(28.49% 8.44 266.33)

OKLAB

oklab(0.3833 -0.0059 -0.023)

OKLCH

oklch(0.3833 0.0237 255.61)

XYZ

xyz(5.32, 5.64, 8.40)

CMYK

cmyk(26%, 15%, 0%, 69%)

CSS

color: #3b4450;

CSS variable

--color-3b4450: #3b4450;

SCSS

$color-3b4450: #3b4450;

JavaScript

const color = "#3b4450";

TypeScript

const color: string = "#3b4450";

React

style={{ backgroundColor: "#3b4450" }}

JSON

{ "hex": "#3b4450", "rgb": { "r": 59, "g": 68, "b": 80 }, "oklch": "oklch(0.3833 0.0237 255.61)" }

Export

Developer code

css

:root {
  --#3b4450-1: #3b4450;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

gray-700

Noticeably different · ΔE 2.25 · #374151

Nearest CSS named color

DarkSlateGray

Very different · ΔE 12.74 · #2F4F4F

Nearest Material color

blue-grey-800

Noticeably different · ΔE 4.73 · #37474F

Nearest Bootstrap color

dark

Very different · ΔE 10.69 · #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.

50edf6ff 100dfe9f5 200ccd5e2 300b5bfcb 40098a2b1 5007d8795 60068717d 700525a65 8003d444e 900283039 950141b24

Palette

Tints & shades

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

efeff0 dee0e2 ced0d3 bec1c5 adb1b6 9da2a8 8d9299 7c828a 6c737c 5c636d 4b545f 3b4450 363e49 313943 2c333c 272d35 22282f 1e2228 191c21 14171b 0f1114 0a0b0d 050607

Palette

Tints

Mixed toward white — soft backgrounds and highlights

efeff0 dee0e2 ced0d3 bec1c5 adb1b6 9da2a8 8d9299 7c828a 6c737c 5c636d 4b545f

Palette

Shades

Mixed toward black — depth, text, and emphasis

363e49 313943 2c333c 272d35 22282f 1e2228 191c21 14171b 0f1114 0a0b0d 050607

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

414954 474e58 4c535c 525860 585d64 5e6268 63676c 696c70 6f7174 757678 7a7b7c

Harmony

Complementary

Opposite on the color wheel for contrast

#3B4450Stop 1 #4F463BStop 2

Harmony

Analogous

Neighbors that sit comfortably together

#3B4E4FStop 1 #3B4450Stop 2 #3C3B4FStop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#3B4450Stop 1 #4F3B43Stop 2 #434F3BStop 3

Harmony

Split complementary

Base plus two accents beside the complement

#3B4450Stop 1 #4F3C3BStop 2 #4E4F3BStop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#2B323BStop 1 #4C5767Stop 2 #6C7D93Stop 3 #98A4B3Stop 4 #C4CBD4Stop 5

Using this color

Where #3b4450 works

#3B4450 (#3b4450) sits in the blue family at about 214° hue, 15% saturation, and 27% lightness. Contrast is 9.87:1 on white and 2.13:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: gray-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, #3b4450 is 2.13:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Trust, calm, and professionalism. The most used color in SaaS, finance, and healthcare. Common uses still include buttons, charts, and accents in the Blue 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 gray 700#374151 Tailwind slate 700#334155 Midnight Blue#2C3E50 Wet Asphalt#34495E Material Blue Grey 800#37474F Tailwind zinc 700#3F3F46 Tailwind gray 600#4B5563 Chakra gray 600#4A5568 Tailwind slate 600#475569 Tailwind zinc 600#52525B Material Grey 800#424242 Tailwind neutral 700#404040