What color is #553EBA?

#553EBA is #553EBA (85, 62, 186 in RGB; hsl(251, 50%, 49%)). It sits in the indigo family. Contrast is 7.54:1 on white and 2.78:1 on black.

Is #553EBA accessible for text?

Yes for normal text on white at 7.54:1 (WCAG AA). Still verify large and small text in a contrast checker before shipping.

How do I use #553EBA in CSS?

Use #553EBA, color: #553eba;, or a custom property like --color-553eba: #553eba;. Nearest Tailwind-style token approximation: indigo-700. Confirm contrast pairs against WCAG before production.

Color brief · Indigo

#553EBA (#553EBA) — practical notes

#553EBA (#553eba) sits in the indigo family at about 251° hue, 50% saturation, and 49% lightness. Contrast is 7.54:1 on white and 2.78:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: indigo-700 (approximation unless the hex is an official scale stop).

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #553eba is 2.78:1. Prefer it as a fill, border, or large heading rather than 16px copy.

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Specs & accessibility references: W3C WCAG 2.1 contrast minimum · MDN CSS color values · CSS Color Module Level 4 · WebAIM contrast guide.

COLOR EXPLORER

THE ORIGINAL SWATCH#553EBA

100% opacity · sRGB

YOUR NEXT GREAT ACCENT

#553EBA

Explore the codes, find a readable pairing, and see how this color feels in a real design.

indigo family Calculated from HEX

HEX#553EBA

RGBrgb(85, 62, 186)

HSLhsl(251, 50%, 49%)

PUT IT INTO PRACTICE

A color is only half the story.

Try it with another color before you commit.

Open full contrast checker

MAKE ROOM FOR SOMETHING GOOD

A little color. A whole lot of possibility.

Selected text: #553EBA

Preview textText size 24px

CONTRAST RATIO7.54:1

AA · normal text: Pass
AA · large text: Pass
AAA · normal text: Pass

Normal text: AA 4.5:1, AAA 7:1. Large text: AA 3:1 (24px regular or about 19px bold).

Against white7.54:1

Against black2.78:1

Results use the exact pair, at full opacity. WCAG contrast guidance ↗

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Color codes

HEX

#553eba

RGB

rgb(85, 62, 186)

HSL

hsl(251, 50%, 49%)

OKLCH

oklch(0.4651 0.1852 285.15)

CMYK

cmyk(54%, 67%, 0%, 27%)

CSS variable

--color-553eba: #553eba;

CMYK is an approximate reference; print output depends on the color profile. HSV and CMYK are not CSS color functions.

OKLCH

css

:root {
  --color553eba-1: #553eba;
}

Design systems

Nearest official tokens

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

Nearest Tailwind color

indigo-700

Noticeably different · ΔE 3.3 · #4338CA

Nearest CSS named color

RebeccaPurple

Very different · ΔE 7.16 · #663399

Nearest Material color

deep-purple-600

Noticeably different · ΔE 3.14 · #5E35B1

Nearest Bootstrap color

primary

Very different · ΔE 18.54 · #0D6EFD

Using this color

Where #553eba works

Sensible jobs for this swatch

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #553eba is 2.78:1. 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 #453CC8#453CC8 Material Deep Purple 600#5E35B1 Tailwind indigo 700#4338CA Material Deep Purple 500#673AB7 Web Safe #6633CC#6633CC Spectrum #4638A3#4638A3 Spectrum #3939D0#3939D0 Spectrum #3A34AD#3A34AD Spectrum #464AB4#464AB4 Spectrum #4F4CAE#4F4CAE Material Deep Purple 700#512DA8 Web Safe #3333CC#3333CC