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violet · cool

#855ecc

a balanced, vivid violet · cool · closest name: Slate Blue

Token name suggestion: True Thistle

RGB
133, 94, 204
HSL
261°, 52%, 58%
CMYK
35, 54, 0, 20
Luminance
0.1735

#855ecc is a balanced vivid violet, 261° on the wheel and 72/100 on the cool side. Put white text on it (4.70:1). As text it scores 4.70:1 on white — safe at any size. Nearest name is Slate Blue, nearest Tailwind family is violet.

hsl(261 52% 58%)rgb(133 94 204)Base step 500AA inkCool

At a glance

Every number on this page in one read: what #855ecc is made of, how bright it looks, and which way it leans.

Hex
#855ecc
Hue
261°
violet
Saturation
52%
vivid
Lightness
58%
balanced
Brightness
80%
HSV value
Perceived
48%
weighted brightness
Luminance
0.1735
WCAG relative
Temperature
Cool
72/100 cool
Color family
Violet
Tone
Vivid
Best ink
White
4.70:1
Closest name
Slate Blue
ΔE2000 5.5
Chroma
65.1
LCH, 0–130ish
OKLCH L
0.574
perceptual lightness
Tailwind
violet
500 · ΔE 6.1
Web-safe
#9966CC
nearest of 216
Where it sits
Hue261° of 360°
Saturation52%
Lightness58%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #855ecc.

Temperature
Warm ← → Cool72% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red29%
Green46%
Blue25%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#855ecc
HEX (8-digit)#855eccff
RGBrgb(133, 94, 204)
RGBArgba(133, 94, 204, 1)
HSLhsl(261, 52%, 58%)
HSV / HSBhsv(261, 54%, 80%)
HWBhwb(261 37% 20%)
CMYKcmyk(35%, 54%, 0%, 20%)
LABlab(48.7 39.6 -51.7)
LCHlch(48.7 65.1 307.5)
OKLCHoklch(0.574 0.165 297.3)
XYZ (D65)xyz(24.57, 17.35, 59.17)
Decimal8740556
Display P3color(display-p3 0.522 0.369 0.800)
Web-safe#9966CC

Copy-ready code

every platformclick to select
/* CSS */
color: #855ecc;
background-color: #855ecc;
/* CSS custom property */
--brand: #855ecc;
/* Tailwind (arbitrary) */
class="text-[#855ecc] bg-[#855ecc]"
/* SCSS */
$brand: #855ecc;
/* SwiftUI */
Color(red: 0.522, green: 0.369, blue: 0.800)
/* UIKit */
UIColor(red: 0.522, green: 0.369, blue: 0.800, alpha: 1)
/* Android XML */
<color name="brand">#855ECC</color>
/* Android Compose */
Color(0xFF855ECC)
/* Flutter */
Color(0xFF855ECC)
/* Python / OpenCV (BGR) */
(204, 94, 133)
/* Python / PIL (RGB) */
(133, 94, 204)
/* Java AWT */
new Color(133, 94, 204)
/* .NET */
Color.FromArgb(255, 133, 94, 204)
/* OpenGL / Unity (0–1) */
(0.5216f, 0.3686f, 0.8000f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{133,94,204}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #855ecc 85%, white);
border-color: color-mix(in oklab, #855ecc 40%, transparent);
/* theme-aware in one line */
color: light-dark(#361F61, #DCD3EE);
/* relative colour syntax */
--hover: hsl(from #855ecc h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F6F4FA;
  --brand-100: #EEEAF6;
  --brand-200: #D9CFED;
  --brand-300: #BEAAE4;
  --brand-400: #9E7FD7;
  --brand-500: #855ecc;
  --brand-600: #683BBA;
  --brand-700: #57319B;
  --brand-800: #45277C;
  --brand-900: #35205A;
  --brand-950: #211439;
  --brand: #855ecc;
  --brand-ink: #ffffff;
  --brand-surface: #F6F4FA;
  --brand-border: #D0C1EB;
  --brand-hover: #7043C3;
  --brand-pressed: #6036AC;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1A1424;
    --brand-ink: #DCD3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6F4FA',
        100: '#EEEAF6',
        200: '#D9CFED',
        300: '#BEAAE4',
        400: '#9E7FD7',
        500: '#855ecc',
        600: '#683BBA',
        700: '#57319B',
        800: '#45277C',
        900: '#35205A',
        950: '#211439',
        DEFAULT: '#855ecc',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6F4FA,
  '100': #EEEAF6,
  '200': #D9CFED,
  '300': #BEAAE4,
  '400': #9E7FD7,
  '500': #855ecc,
  '600': #683BBA,
  '700': #57319B,
  '800': #45277C,
  '900': #35205A,
  '950': #211439,
);
$brand-base: #855ecc;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6F4FA", "$type": "color" },
      "100": { "$value": "#EEEAF6", "$type": "color" },
      "200": { "$value": "#D9CFED", "$type": "color" },
      "300": { "$value": "#BEAAE4", "$type": "color" },
      "400": { "$value": "#9E7FD7", "$type": "color" },
      "500": { "$value": "#855ecc", "$type": "color" },
      "600": { "$value": "#683BBA", "$type": "color" },
      "700": { "$value": "#57319B", "$type": "color" },
      "800": { "$value": "#45277C", "$type": "color" },
      "900": { "$value": "#35205A", "$type": "color" },
      "950": { "$value": "#211439", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#ffffff on #855ecc · 4.70:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 4.70:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 4.47:1
AA fail · AA large pass · AAA fail
Reading the other direction: #855ecc as text scores 4.70:1 on white and 4.47:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F0ECF9 at 4.04:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#855ecc · 4.70:1
AA on whitealready passes
#855ecc
The quick fox
#693BBB · 7.13:1
AAA on white−10% L
#693BBB
The quick fox
#8862CD · 4.68:1
AA on black+1% L
#8862CD
The quick fox
#A588D9 · 7.12:1
AAA on black+11% L
#A588D9

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #855ECC is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#855ecc on white: 4.70:1
AA ✓ pass · AA-large · AAA
Aa
#855ecc on black: 4.47:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #855ecc as text on that neutral, and that neutral as text on #855ecc.

NeutralRatioBoth directions
White4.70:1AaAa
Slate 504.49:1AaAa
Slate 1004.29:1AaAa
Slate 2003.81:1AaAa
Slate 3003.16:1AaAa
Slate 4001.83:1AaAa
Slate 5001.01:1AaAa
Slate 6001.61:1AaAa
Slate 7002.20:1AaAa
Slate 8003.11:1AaAa
Slate 9003.80:1AaAa
Black4.47:1AaAa
Colour vision deficiency
true color
protanopia · #3074D0
deuteranopia · #3C72C9
tritanopia · #75748C

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #855ecc is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6F4FA
#EEEAF6
#D9CFED
#BEAAE4
#9E7FD7
#855ecc
#683BBA
#57319B
#45277C
#35205A
#211439
Base = 500Lightest = 50 · #F6F4FADarkest = 950 · #211439Text step on white = 500
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.041 297.3);
  --brand-100: oklch(0.94 0.066 297.3);
  --brand-200: oklch(0.88 0.099 297.3);
  --brand-300: oklch(0.80 0.128 297.3);
  --brand-400: oklch(0.72 0.151 297.3);
  --brand-500: oklch(0.64 0.165 297.3);
  --brand-600: oklch(0.56 0.165 297.3);
  --brand-700: oklch(0.48 0.155 297.3);
  --brand-800: oklch(0.40 0.138 297.3);
  --brand-900: oklch(0.32 0.115 297.3);
  --brand-950: oklch(0.24 0.090 297.3);
}

Colors that work with #855ecc

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#ffffff
White wins here
Surface#F6F4FA
Tinted page background
Border#D0C1EB
Hairlines and dividers
Muted text#674B9B
Captions on the surface
Accent#939F2D
Second voice, not a rival
Dark variant#361F61
Hover, pressed, headers
Light variant#F0ECF9
Selected rows, tints
Dark surface#1A1424
Dark-mode background
Hover#7043C3
One step down in lightness
Pressed#6036AC
Two steps down
Disabled#CAC2D8
Chroma pulled out
Focus ring#8E64DA
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #855ecc

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Body text and links on white
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

creativepremiummodernimaginative

Violet sits between the warmth of red and the calm of blue, so it reads as inventive without reading as risky. Current shorthand for software craft.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The mid lightness keeps it versatile in both themes.

Worth knowing

Deep violets swallow detail on screens with poor gamma; check it on a cheap laptop panel.

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight42/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#A5CC5E
Analogous left#5E6ECC
Analogous right#BC5ECC
Split-complement 1#CCBC5E
Split-complement 2#6ECC5E
Triadic 1#CC855E
Triadic 2#5ECC85
Tetradic#CC5E6E
On the wheel
Base+30°−30°+120°+240°+180°261°

#855ecc sits at 261°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red52.2%
Green36.9%
Blue80.0%
R · 0–255
133
0x85
G · 0–255
94
0x5e
B · 0–255
204
0xcc

CMYK percentages

Cyan34.8%
Magenta53.9%
Yellow0.0%
Key (black)20.0%

Total ink coverage is 109%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#855ecc text on a black background

contrast 4.47:1

Card sample

#855ecc text on a white background

contrast 4.70:1

Card sample

#855ecc on grey

4.29:1

#855ecc on its own surface

4.30:1

#855ecc on its dark surface

3.82:1

CSS3 live lab

Text font color

The quick brown fox

color: #855ecc;
Background color
Panel with #855ecc background
background-color: #855ecc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #855ecc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(133, 94, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(133, 94, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #855ecc;
background: linear-gradient(135deg, #855ecc, #CC5ECA);
Gradient text

Gradient headline

background: linear-gradient(90deg, #855ecc, #CC5EAE);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #855ecc;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #855ecc;
caret-color: #855ecc;
Left rule
Pull quote or callout
border-left: 4px solid #855ecc;
Ring + tint
Selected chip
background: #F0ECF9;
box-shadow: inset 0 0 0 2px #855ecc;
Conic badge
68%
background: conic-gradient(#855ecc 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #855ecc over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(133, 94, 204, 0.5)
rgb(133 94 204 / 50%)
#855ecc80
hsl(261 52% 58% / 50%)
color-mix(in srgb, #855ecc 50%, transparent)
Alpha8-digit hexFlat on white
10%#855ecc1a#F3EFFA
20%#855ecc33#E7DFF5
40%#855ecc66#CEBFEB
60%#855ecc99#B69EE0
80%#855ecccc#9D7ED6

Gradients from #855ecc

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #A88CDB, #855ecc 45%, #361F61);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #855ecc, #C547B7);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #855ecc, #A5CC5E);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #BAA4E2 0%, #855ecc 45%, #361F61 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F6F4FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #8598D8 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #CE75D3 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #361F61 0%, transparent 65%), #855ecc;

Monochromatic scale

Palettes built from #855ecc

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#855ecc in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
Creative toolsFintechBeautyLuxury
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Too dim on dark surfaces at 4.47:1 — lift it to #8862CD for body text, or reserve it for fills.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#855ecc, answered

What color is #855ecc?

#855ecc is a balanced vivid violet, closest to Slate Blue (ΔE2000 5.5). It sits at 261° on the hue wheel with 52% saturation and 58% lightness, which reads as cool.

What is the RGB value of #855ecc?

rgb(133, 94, 204) — 133 red, 94 green and 204 blue out of 255, or 52.2% / 36.9% / 80% by channel.

What is #855ecc in HSL and HSV?

hsl(261, 52%, 58%) and hsv(261, 54%, 80%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #855ecc a light or a dark color?

It is a dark color. Relative luminance is 0.1735 and perceived brightness is 48%, so white text on it reaches 4.70:1.

Should I use black or white text on #855ecc?

White. It scores 4.70:1 against #855ecc, versus 4.47:1 for black — AA at any size.

Is #855ecc accessible on a white background?

#855ecc on white scores 4.70:1, which clears AA at every size but not AAA.

What is the complementary color of #855ecc?

#A5CC5E sits directly opposite on the wheel. Softer options are the split-complements #CCBC5E and #6ECC5E, which give the same contrast with far less vibration.

What colors go well with #855ecc?

For interface work: #F6F4FA as the surface, #D0C1EB for borders, #674B9B for secondary text, #939F2D as an accent and #361F61 for hover and pressed states. For a palette, the analogous pair #5E6ECC and #BC5ECC stays calm, while #A5CC5E is the loudest partner.

What is #855ecc in CMYK for printing?

cmyk(35%, 54%, 0%, 20%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #855ecc warm or cool?

Cool — it scores 72 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #AD5ECC; nudged cooler, #5C5DCE.

Which Tailwind color is closest to #855ecc?

The violet family — its 500 step is #8b5cf6, ΔE2000 6.1 away. That is a visible difference, so define #855ecc as a custom token rather than reaching for the built-in.

How do I use #855ecc in Tailwind CSS?

Inline it as an arbitrary value with bg-[#855ecc] or text-[#855ecc], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #855ecc with 50% opacity?

rgba(133, 94, 204, 0.5), or #855ecc80 in eight-digit hex. Over white that composites to #C2AFE6; over black, #432F66.

Is #855ecc a web-safe color?

No. The nearest web-safe colour is #9966CC, ΔE2000 5 away. The palette only matters for legacy displays and some email clients now.

What does the color #855ecc mean?

As a violet, it reads creative, premium, modern. Violet sits between the warmth of red and the calm of blue, so it reads as inventive without reading as risky. Current shorthand for software craft. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #855ecc?

The safest is same-hue elevation: linear-gradient(135deg, #A88CDB, #855ecc 45%, #361F61). For more colour, a short hue run to #C547B7 keeps it rich without turning muddy.

Work with #855ecc in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #855ecc at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.