#404072

Accessibility

AAA

9.57:1

Vs white / black

9.57:1 · 2.19:1

Sources

Library color

Codes

Formats

HEX

#404072

RGB

rgb(64, 64, 114)

RGBA

rgba(64, 64, 114, 1)

HSL

hsl(240, 28%, 35%)

HSLA

hsla(240, 28%, 35%, 1)

HSV

hsv(240, 44%, 45%)

LAB

lab(29.34% 13.99 -28.89)

LCH

lch(29.34% 32.1 295.84)

OKLAB

oklab(0.3963 0.0172 -0.0815)

OKLCH

oklch(0.3963 0.0833 281.92)

XYZ

xyz(6.98, 5.97, 16.70)

CMYK

cmyk(44%, 44%, 0%, 55%)

CSS

color: #404072;

CSS variable

--color-404072: #404072;

SCSS

$color-404072: #404072;

JavaScript

const color = "#404072";

TypeScript

const color: string = "#404072";

React

style={{ backgroundColor: "#404072" }}

JSON

{ "hex": "#404072", "rgb": { "r": 64, "g": 64, "b": 114 }, "oklch": "oklch(0.3963 0.0833 281.92)" }

Export

Developer code

css

:root {
  --#404072-1: #404072;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

indigo-900

Very different · ΔE 7.79 · #312E81

Nearest CSS named color

DarkSlateBlue

Very different · ΔE 5.81 · #483D8B

Nearest Material color

indigo-800

Very different · ΔE 8.84 · #283593

Nearest Bootstrap color

dark

Very different · ΔE 19.37 · #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.

50eff2ff 100e1e4ff 200cdd0ff 300b5b9ed 400999bd5 5007e80b7 600696b9a 70053557d 8003f4061 9002b2c46 95018182d

Palette

Tints & shades

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

efeff3 dfdfe8 cfcfdc bfbfd0 afafc4 a0a0b9 9090ad 8080a1 707095 60608a 50507e 404072 3b3b69 35355f 303056 2b2b4c 252542 202039 1b1b2f 151526 10101d 0b0b13 05050a

Palette

Tints

Mixed toward white — soft backgrounds and highlights

efeff3 dfdfe8 cfcfdc bfbfd0 afafc4 a0a0b9 9090ad 8080a1 707095 60608a 50507e

Palette

Shades

Mixed toward black — depth, text, and emphasis

3b3b69 35355f 303056 2b2b4c 252542 202039 1b1b2f 151526 10101d 0b0b13 05050a

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

454573 4b4b74 505076 555577 5b5b78 606079 65657a 6b6b7b 70707d 75757e 7b7b7f

Harmony

Complementary

Opposite on the color wheel for contrast

#404072Stop 1 #727240Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#405972Stop 1 #404072Stop 2 #594072Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#404072Stop 1 #724040Stop 2 #407240Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#404072Stop 1 #725940Stop 2 #597240Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#252541Stop 1 #404072Stop 2 #5C5CA3Stop 3 #8D8DBFStop 4 #BEBEDAStop 5

Using this color

Where #404072 works

#404072 (#404072) sits in the indigo family at about 240° hue, 28% saturation, and 35% lightness. Contrast is 9.57:1 on white and 2.19:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: indigo-900 (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, #404072 is 2.19:1. Prefer it as a fill, border, or large heading rather than 16px copy.

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

Spectrum #383875#383875 Spectrum #343A79#343A79 Web Safe #333366#333366 Spectrum #2F3B7F#2F3B7F Spectrum #43428F#43428F DarkSlateBlue#483D8B Spectrum #324771#324771 Spectrum #2A3F83#2A3F83 Spectrum #3E4398#3E4398 Spectrum #3B3187#3B3187 Tailwind indigo 900#312E81 Spectrum #27458B#27458B