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violet · cool

#a10afb

a balanced, electric violet · cool · closest name: Blue Violet

Token name suggestion: Atlas Thistle

RGB
161, 10, 251
HSL
278°, 97%, 51%
CMYK
36, 96, 0, 2
Luminance
0.1476

#a10afb is a balanced electric violet, 278° on the wheel and 62/100 on the cool side. Put white text on it (5.31:1). As text it scores 5.31:1 on white — safe at any size. Nearest name is Blue Violet, nearest Tailwind family is purple.

hsl(278 97% 51%)rgb(161 10 251)Base step 600AA inkCool

At a glance

Every number on this page in one read: what #a10afb is made of, how bright it looks, and which way it leans.

Hex
#a10afb
Hue
278°
violet
Saturation
97%
electric
Lightness
51%
balanced
Brightness
98%
HSV value
Perceived
48%
weighted brightness
Luminance
0.1476
WCAG relative
Temperature
Cool
62/100 cool
Color family
Violet
Tone
Electric
Best ink
White
5.31:1
Closest name
Blue Violet
ΔE2000 4.3
Chroma
118.8
LCH, 0–130ish
OKLCH L
0.568
perceptual lightness
Tailwind
purple
500 · ΔE 9.5
Web-safe
#9900FF
nearest of 216
Where it sits
Hue278° of 360°
Saturation97%
Lightness51%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #a10afb.

Temperature
Warm ← → Cool62% 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
Red51%
Green1%
Blue47%

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

Every format

HEX#a10afb
HEX (8-digit)#a10afbff
RGBrgb(161, 10, 251)
RGBArgba(161, 10, 251, 1)
HSLhsl(278, 97%, 51%)
HSV / HSBhsv(278, 96%, 98%)
HWBhwb(278 4% 2%)
CMYKcmyk(36%, 96%, 0%, 2%)
LABlab(45.3 84.4 -83.7)
LCHlch(45.3 118.8 315.2)
OKLCHoklch(0.568 0.292 305.0)
XYZ (D65)xyz(32.22, 14.76, 92.40)
Decimal10554107
Display P3color(display-p3 0.631 0.039 0.984)
Web-safe#9900FF

Copy-ready code

every platformclick to select
/* CSS */
color: #a10afb;
background-color: #a10afb;
/* CSS custom property */
--brand: #a10afb;
/* Tailwind (arbitrary) */
class="text-[#a10afb] bg-[#a10afb]"
/* SCSS */
$brand: #a10afb;
/* SwiftUI */
Color(red: 0.631, green: 0.039, blue: 0.984)
/* UIKit */
UIColor(red: 0.631, green: 0.039, blue: 0.984, alpha: 1)
/* Android XML */
<color name="brand">#A10AFB</color>
/* Android Compose */
Color(0xFFA10AFB)
/* Flutter */
Color(0xFFA10AFB)
/* Python / OpenCV (BGR) */
(251, 10, 161)
/* Python / PIL (RGB) */
(161, 10, 251)
/* Java AWT */
new Color(161, 10, 251)
/* .NET */
Color.FromArgb(255, 161, 10, 251)
/* OpenGL / Unity (0–1) */
(0.6314f, 0.0392f, 0.9843f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{161,10,251}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #a10afb 85%, white);
border-color: color-mix(in oklab, #a10afb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#4F027D, #E4D3EE);
/* relative colour syntax */
--hover: hsl(from #a10afb 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: #F9F1FD;
  --brand-100: #F3E4FC;
  --brand-200: #E5C1FB;
  --brand-300: #D591FD;
  --brand-400: #BF59FC;
  --brand-500: #AA22FB;
  --brand-600: #a10afb;
  --brand-700: #7F03C9;
  --brand-800: #6603A1;
  --brand-900: #4B0774;
  --brand-950: #2F0448;
  --brand: #a10afb;
  --brand-ink: #ffffff;
  --brand-surface: #F8F4FA;
  --brand-border: #DCC0ED;
  --brand-hover: #8C04DE;
  --brand-pressed: #7603BB;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1E1424;
    --brand-ink: #E4D3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F9F1FD',
        100: '#F3E4FC',
        200: '#E5C1FB',
        300: '#D591FD',
        400: '#BF59FC',
        500: '#AA22FB',
        600: '#a10afb',
        700: '#7F03C9',
        800: '#6603A1',
        900: '#4B0774',
        950: '#2F0448',
        DEFAULT: '#a10afb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F9F1FD,
  '100': #F3E4FC,
  '200': #E5C1FB,
  '300': #D591FD,
  '400': #BF59FC,
  '500': #AA22FB,
  '600': #a10afb,
  '700': #7F03C9,
  '800': #6603A1,
  '900': #4B0774,
  '950': #2F0448,
);
$brand-base: #a10afb;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F9F1FD", "$type": "color" },
      "100": { "$value": "#F3E4FC", "$type": "color" },
      "200": { "$value": "#E5C1FB", "$type": "color" },
      "300": { "$value": "#D591FD", "$type": "color" },
      "400": { "$value": "#BF59FC", "$type": "color" },
      "500": { "$value": "#AA22FB", "$type": "color" },
      "600": { "$value": "#a10afb", "$type": "color" },
      "700": { "$value": "#7F03C9", "$type": "color" },
      "800": { "$value": "#6603A1", "$type": "color" },
      "900": { "$value": "#4B0774", "$type": "color" },
      "950": { "$value": "#2F0448", "$type": "color" }
    },
    "brandInk": { "$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 #a10afb · 5.31:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.31:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.95:1
AA fail · AA large pass · AAA fail
Reading the other direction: #a10afb as text scores 5.31:1 on white and 3.95:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F5E6FF at 4.47:1.

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
#a10afb · 5.31:1
AA on whitealready passes
#a10afb
The quick fox
#8603D4 · 7.05:1
AAA on white−9% L
#8603D4
The quick fox
#AF2DFC · 4.60:1
AA on black+7% L
#AF2DFC
The quick fox
#C86EFD · 7.10:1
AAA on black+20% L
#C86EFD

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #A10AFB 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
#a10afb on white: 5.31:1
AA ✓ pass · AA-large · AAA
Aa
#a10afb on black: 3.95:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #a10afb as text on that neutral, and that neutral as text on #a10afb.

NeutralRatioBoth directions
White5.31:1AaAa
Slate 505.08:1AaAa
Slate 1004.85:1AaAa
Slate 2004.31:1AaAa
Slate 3003.58:1AaAa
Slate 4002.07:1AaAa
Slate 5001.12:1AaAa
Slate 6001.43:1AaAa
Slate 7001.95:1AaAa
Slate 8002.75:1AaAa
Slate 9003.36:1AaAa
Black3.95:1AaAa
Colour vision deficiency
true color
protanopia · #0068FF
deuteranopia · #006BF7
tritanopia · #8F6094

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. #a10afb is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F9F1FD
#F3E4FC
#E5C1FB
#D591FD
#BF59FC
#AA22FB
#a10afb
#7F03C9
#6603A1
#4B0774
#2F0448
Base = 600Lightest = 50 · #F9F1FDDarkest = 950 · #2F0448Text 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 0.073 305.0);
  --brand-100: oklch(0.94 0.117 305.0);
  --brand-200: oklch(0.88 0.175 305.0);
  --brand-300: oklch(0.80 0.227 305.0);
  --brand-400: oklch(0.72 0.268 305.0);
  --brand-500: oklch(0.64 0.292 305.0);
  --brand-600: oklch(0.56 0.292 305.0);
  --brand-700: oklch(0.48 0.274 305.0);
  --brand-800: oklch(0.40 0.245 305.0);
  --brand-900: oklch(0.32 0.204 305.0);
  --brand-950: oklch(0.24 0.160 305.0);
}

Colors that work with #a10afb

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#F8F4FA
Tinted page background
Border#DCC0ED
Hairlines and dividers
Muted text#7D4B9B
Captions on the surface
Accent#7FCC00
Second voice, not a rival
Dark variant#4F027D
Hover, pressed, headers
Light variant#F5E6FF
Selected rows, tints
Dark surface#1E1424
Dark-mode background
Hover#8C04DE
One step down in lightness
Pressed#7603BB
Two steps down
Disabled#BEACCA
Chroma pulled out
Focus ring#AA1BFF
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 #a10afb

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.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. 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
  • FormalityLow
  • EnergyHigh
  • Weight49/100
  • TemperatureCool
  • ApproachabilityBalanced

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#64FB0A
Analogous left#290AFB
Analogous right#FB0ADD
Split-complement 1#DDFB0A
Split-complement 2#0AFB29
Triadic 1#FBA10A
Triadic 2#0AFBA1
Tetradic#FB290A
On the wheel
Base+30°−30°+120°+240°+180°278°

#a10afb sits at 278°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red63.1%
Green3.9%
Blue98.4%
R · 0–255
161
0xa1
G · 0–255
10
0x0a
B · 0–255
251
0xfb

CMYK percentages

Cyan35.9%
Magenta96.0%
Yellow0.0%
Key (black)1.6%

Total ink coverage is 134%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#a10afb text on a black background

contrast 3.95:1

Card sample

#a10afb text on a white background

contrast 5.31:1

Card sample

#a10afb on grey

4.85:1

#a10afb on its own surface

4.89:1

#a10afb on its dark surface

3.35:1

CSS3 live lab

Text font color

The quick brown fox

color: #a10afb;
Background color
Panel with #a10afb background
background-color: #a10afb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #a10afb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(161, 10, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(161, 10, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a10afb;
background: linear-gradient(135deg, #a10afb, #FB0AB4);
Gradient text

Gradient headline

background: linear-gradient(90deg, #a10afb, #FB0A78);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #a10afb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #a10afb;
caret-color: #a10afb;
Left rule
Pull quote or callout
border-left: 4px solid #a10afb;
Ring + tint
Selected chip
background: #F5E6FF;
box-shadow: inset 0 0 0 2px #a10afb;
Conic badge
68%
background: conic-gradient(#a10afb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #a10afb 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(161, 10, 251, 0.5)
rgb(161 10 251 / 50%)
#a10afb80
hsl(278 97% 51% / 50%)
color-mix(in srgb, #a10afb 50%, transparent)
Alpha8-digit hexFlat on white
10%#a10afb1a#F6E7FF
20%#a10afb33#ECCEFE
40%#a10afb66#D99DFD
60%#a10afb99#C76CFD
80%#a10afbcc#B43BFC

Gradients from #a10afb

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, #B846FC, #a10afb 45%, #4F027D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #a10afb, #E3048F);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #a10afb, #64FB0A);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #C464FC 0%, #a10afb 45%, #4F027D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F8F4FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #453CFC 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #FC28CF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #4F027D 0%, transparent 65%), #a10afb;

Monochromatic scale

Palettes built from #a10afb

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.

#a10afb 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

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

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 3.95:1 — lift it to #AF2DFC 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.

#a10afb, answered

What color is #a10afb?

#a10afb is a balanced electric violet, closest to Blue Violet (ΔE2000 4.3). It sits at 278° on the hue wheel with 97% saturation and 51% lightness, which reads as cool.

What is the RGB value of #a10afb?

rgb(161, 10, 251) — 161 red, 10 green and 251 blue out of 255, or 63.1% / 3.9% / 98.4% by channel.

What is #a10afb in HSL and HSV?

hsl(278, 97%, 51%) and hsv(278, 96%, 98%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #a10afb a light or a dark color?

It is a dark color. Relative luminance is 0.1476 and perceived brightness is 48%, so white text on it reaches 5.31:1.

Should I use black or white text on #a10afb?

White. It scores 5.31:1 against #a10afb, versus 3.95:1 for black — AA at any size.

Is #a10afb accessible on a white background?

#a10afb on white scores 5.31:1, which clears AA at every size but not AAA.

What is the complementary color of #a10afb?

#64FB0A sits directly opposite on the wheel. Softer options are the split-complements #DDFB0A and #0AFB29, which give the same contrast with far less vibration.

What colors go well with #a10afb?

For interface work: #F8F4FA as the surface, #DCC0ED for borders, #7D4B9B for secondary text, #7FCC00 as an accent and #4F027D for hover and pressed states. For a palette, the analogous pair #290AFB and #FB0ADD stays calm, while #64FB0A is the loudest partner.

What is #a10afb in CMYK for printing?

cmyk(36%, 96%, 0%, 2%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #a10afb warm or cool?

Cool — it scores 62 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F90AFB; nudged cooler, #4808FE.

Which Tailwind color is closest to #a10afb?

The purple family — its 500 step is #a855f7, ΔE2000 9.5 away. That is a visible difference, so define #a10afb as a custom token rather than reaching for the built-in.

How do I use #a10afb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#a10afb] or text-[#a10afb], 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 #a10afb with 50% opacity?

rgba(161, 10, 251, 0.5), or #a10afb80 in eight-digit hex. Over white that composites to #D085FD; over black, #51057E.

Is #a10afb a web-safe color?

No. The nearest web-safe colour is #9900FF, ΔE2000 1.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #a10afb 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 #a10afb?

The safest is same-hue elevation: linear-gradient(135deg, #B846FC, #a10afb 45%, #4F027D). For more colour, a short hue run to #E3048F keeps it rich without turning muddy.

Work with #a10afb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #a10afb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.