What is the HEX code for Material Blue Grey 300?

Material Blue Grey 300 uses #90a4ae. Copy HEX for design tools, or the CSS variable and Tailwind token from this page. Verify 14px text contrast before using it as body copy on white.

Which color family does Material Blue Grey 300 belong to?

Material Blue Grey 300 is in the light-blue family. Use the tints for surfaces and the shades for icons; the family psychology note is a starting mood, not a license to skip WCAG.

Light Blue

Material Blue Grey 300

#90A4AE

Accessibility

AAA

8.11:1

Vs white / black

2.59:1 · 8.11:1

Sources

material

Codes

Formats

HEX

#90a4ae

RGB

rgb(144, 164, 174)

RGBA

rgba(144, 164, 174, 1)

HSL

hsl(200, 16%, 62%)

HSLA

hsla(200, 16%, 62%, 1)

HSV

hsv(200, 17%, 68%)

LAB

lab(66.16% -4.82 -7.52)

LCH

lch(66.16% 8.93 237.34)

OKLAB

oklab(0.7064 -0.0175 -0.0203)

OKLCH

oklch(0.7064 0.0268 229.24)

XYZ

xyz(32.42, 35.54, 45.19)

CMYK

cmyk(17%, 6%, 0%, 32%)

CSS

color: #90a4ae;

CSS variable

--color-90a4ae: #90a4ae;

SCSS

$color-90a4ae: #90a4ae;

JavaScript

const color = "#90a4ae";

TypeScript

const color: string = "#90a4ae";

React

style={{ backgroundColor: "#90a4ae" }}

JSON

{ "hex": "#90a4ae", "rgb": { "r": 144, "g": 164, "b": 174 }, "oklch": "oklch(0.7064 0.0268 229.24)" }

Export

Developer code

css

:root {
  --material-blue-grey-300-1: #90a4ae;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

gray-400

Very different · ΔE 5.88 · #9CA3AF

Nearest CSS named color

DarkGray

Very different · ΔE 8.79 · #A9A9A9

Nearest Material color

blue-grey-300

Exact match · #90A4AE

Nearest Bootstrap color

Same hue, varied lightness and saturation

#2B363BStop 1 #4B5E68Stop 2 #6B8694Stop 3 #97ABB4Stop 4 #C4CFD4Stop 5

Using this color

Where #90a4ae works

Material Blue Grey 300 (#90a4ae) sits in the light blue family at about 200° hue, 16% saturation, and 62% lightness. Contrast is 2.59:1 on white and 8.11:1 on black, so near-black labels read more clearly on the swatch itself. Nearest Tailwind token: gray-400 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

supporting UI accents
text or icons on charcoal / dark mode

Do not use #90a4ae as small body text on white — 2.59:1 misses WCAG AA (4.5:1). Pair it with a darker shade from the scale below, or check pairs in the contrast checker.

Family context: Openness, clarity, and communication. Soft and approachable for modern interfaces. Common uses still include buttons, charts, and accents in the Light 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

Concrete#95A5A6 Tailwind gray 400#9CA3AF Tailwind slate 400#94A3B8 Chakra gray 400#A0AEC0 Spectrum #8DB2C8#8DB2C8 Material Blue Grey 400#78909C Material Blue Grey 200#B0BEC5 Spectrum #89B8CD#89B8CD Spectrum #72AAC0#72AAC0 Soothing Breeze#B2BEC3 Tailwind neutral 400#A3A3A3 Material Grey 500#9E9E9E