#9999AA

Accessibility

AAA

7.49:1

Vs white / black

2.8:1 · 7.49:1

Sources

Library color

Codes

Formats

HEX

#9999aa

RGB

rgb(153, 153, 170)

RGBA

rgba(153, 153, 170, 1)

HSL

hsl(240, 9%, 63%)

HSLA

hsla(240, 9%, 63%, 1)

HSV

hsv(240, 10%, 67%)

LAB

lab(63.72% 3.43 -8.85)

LCH

lch(63.72% 9.49 291.18)

OKLAB

oklab(0.6885 0.0067 -0.0238)

OKLCH

oklch(0.6885 0.0247 285.72)

XYZ

xyz(31.78, 32.46, 42.61)

CMYK

cmyk(10%, 10%, 0%, 33%)

CSS

color: #9999aa;

CSS variable

--color-9999aa: #9999aa;

SCSS

$color-9999aa: #9999aa;

JavaScript

const color = "#9999aa";

TypeScript

const color: string = "#9999aa";

React

style={{ backgroundColor: "#9999aa" }}

JSON

{ "hex": "#9999aa", "rgb": { "r": 153, "g": 153, "b": 170 }, "oklch": "oklch(0.6885 0.0247 285.72)" }

Export

Developer code

css

:root {
  --#9999aa-1: #9999aa;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

zinc-400

Noticeably different · ΔE 4.27 · #A1A1AA

Nearest CSS named color

DarkGray

Very different · ΔE 9.44 · #A9A9A9

Nearest Material color

grey-500

Very different · ΔE 8.4 · #9E9E9E

Nearest Bootstrap color

secondary

Very different · ΔE 15.66 · #6C757D

OKLCH

Perceptual 50–950 scale

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

50f3f4ff 100e6e6f5 200d3d3e1 300bcbccc 400a0a0b1 500848495 6006f6f7d 700585864 80042424e 9002e2e39 9501a1924

Palette

Tints & shades

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

f7f7f8 eeeef1 e6e6ea dddde3 d5d5dc ccccd5 c4c4cd bbbbc6 b3b3bf aaaab8 a2a2b1 9999aa 8c8c9c 80808e 737380 666671 595963 4d4d55 404047 333339 26262b 19191c 0d0d0e

Palette

Tints

Mixed toward white — soft backgrounds and highlights

f7f7f8 eeeef1 e6e6ea dddde3 d5d5dc ccccd5 c4c4cd bbbbc6 b3b3bf aaaab8 a2a2b1

Palette

Shades

Mixed toward black — depth, text, and emphasis

8c8c9c 80808e 737380 666671 595963 4d4d55 404047 333339 26262b 19191c 0d0d0e

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

9797a6 9595a3 9393a0 91919c 8f8f99 8d8d95 8a8a92 88888e 86868b 848487 828284

Harmony

Complementary

Opposite on the color wheel for contrast

#9999AAStop 1 #A9A998Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#98A1A9Stop 1 #9999AAStop 2 #A198A9Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#9999AAStop 1 #A99898Stop 2 #98A998Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#9999AAStop 1 #A9A198Stop 2 #A1A998Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#2E2E38Stop 1 #515161Stop 2 #74748BStop 3 #9E9EAEStop 4 #C7C7D1Stop 5

Using this color

Where #9999aa works

#9999AA (#9999aa) sits in the indigo family at about 240° hue, 9% saturation, and 63% lightness. Contrast is 2.8:1 on white and 7.49:1 on black, so near-black labels read more clearly on the swatch itself. Nearest Tailwind token: zinc-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 #9999aa as small body text on white — 2.8:1 misses WCAG AA (4.5:1). Pair it with a darker shade from the scale below, or check pairs in the contrast checker.

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 400#A1A1AA Material You Neutral#938F99 Tailwind gray 400#9CA3AF System Gray#8E8E93 Tailwind slate 400#94A3B8 Web Safe #999999#999999 Material Grey 500#9E9E9E Chakra gray 400#A0AEC0 Tailwind neutral 400#A3A3A3 DarkGray#A9A9A9 Spectrum #93A8CD#93A8CD Web Safe #9999CC#9999CC

Where #9999aa works

Sensible jobs for this swatch

supporting UI accents

text or icons on charcoal / dark mode

Do not use #9999aa as small body text on white — 2.8:1 misses WCAG AA (4.5:1). Pair it with a darker shade from the scale below, or check pairs in the contrast checker.

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