#3D4356

Accessibility

AAA

9.83:1

Vs white / black

9.83:1 · 2.14:1

Sources

Library color

Codes

Formats

HEX

#3d4356

RGB

rgb(61, 67, 86)

RGBA

rgba(61, 67, 86, 1)

HSL

hsl(226, 17%, 29%)

HSLA

hsla(226, 17%, 29%, 1)

HSV

hsv(226, 29%, 34%)

LAB

lab(28.59% 2.51 -12.15)

LCH

lch(28.59% 12.41 281.67)

OKLAB

oklab(0.3852 0.0006 -0.0334)

OKLCH

oklch(0.3852 0.0334 271.03)

XYZ

xyz(5.61, 5.68, 9.60)

CMYK

cmyk(29%, 22%, 0%, 66%)

CSS

color: #3d4356;

CSS variable

--color-3d4356: #3d4356;

SCSS

$color-3d4356: #3d4356;

JavaScript

const color = "#3d4356";

TypeScript

const color: string = "#3d4356";

React

style={{ backgroundColor: "#3d4356" }}

JSON

{ "hex": "#3d4356", "rgb": { "r": 61, "g": 67, "b": 86 }, "oklch": "oklch(0.3852 0.0334 271.03)" }

Export

Developer code

css

:root {
  --#3d4356-1: #3d4356;
}

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 3.13 · #374151

Nearest CSS named color

DarkSlateBlue

Very different · ΔE 13.3 · #483D8B

Nearest Material color

blue-grey-800

Very different · ΔE 9.2 · #37474F

Nearest Bootstrap color

dark

Very different · ΔE 12.57 · #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.

50f0f5ff 100e2e7f7 200ced4e6 300b6bdd1 4009aa1b7 5007e869b 600697082 700545968 8003f4350 9002b2f39 950171a24

Palette

Tints & shades

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

efeff1 dfe0e3 cfd0d5 bec0c7 aeb1b9 9ea1ab 8e919c 7e828e 6e7280 5d6272 4d5364 3d4356 383d4f 333848 2e3241 292d39 242732 1f222b 191c24 14161d 0f1116 0a0b0e 050607

Palette

Tints

Mixed toward white — soft backgrounds and highlights

efeff1 dfe0e3 cfd0d5 bec0c7 aeb1b9 9ea1ab 8e919c 7e828e 6e7280 5d6272 4d5364

Palette

Shades

Mixed toward black — depth, text, and emphasis

383d4f 333848 2e3241 292d39 242732 1f222b 191c24 14161d 0f1116 0a0b0e 050607

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

43485a 484d5d 4e5261 535764 595c68 5f626b 64676f 6a6c72 6f7176 757679 7a7b7d

Harmony

Complementary

Opposite on the color wheel for contrast

#3D4356Stop 1 #57513DStop 2

Harmony

Analogous

Neighbors that sit comfortably together

#3D5057Stop 1 #3D4356Stop 2 #443D57Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#3D4356Stop 1 #573D43Stop 2 #43573DStop 3

Harmony

Split complementary

Base plus two accents beside the complement

#3D4356Stop 1 #57443DStop 2 #50573DStop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#2A2E3CStop 1 #4A5168Stop 2 #6A7495Stop 3 #979EB5Stop 4 #C3C7D5Stop 5

Using this color

Where #3d4356 works

#3D4356 (#3d4356) sits in the blue family at about 226° hue, 17% saturation, and 29% lightness. Contrast is 9.83:1 on white and 2.14:1 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, #3d4356 is 2.14:1. 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 Tailwind zinc 700#3F3F46 Midnight Blue#2C3E50 Wet Asphalt#34495E Chakra gray 600#4A5568 Tailwind slate 600#475569 Tailwind gray 600#4B5563 Tailwind zinc 600#52525B Spectrum #324771#324771 Tailwind slate 800#1E293B Material Blue Grey 800#37474F