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blue · cool

#613af1

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

Token name suggestion: Studio Denim

RGB
97, 58, 241
HSL
253°, 87%, 59%
CMYK
60, 76, 0, 6
Luminance
0.1192

#613af1 is a balanced electric blue, 253° on the wheel and 76/100 on the cool side. Put white text on it (6.21:1). As text it scores 6.21:1 on white — safe at any size. Nearest name is Blue Violet, nearest Tailwind family is violet.

hsl(253 87% 59%)rgb(97 58 241)Base step 500AA inkCool

At a glance

Every number on this page in one read: what #613af1 is made of, how bright it looks, and which way it leans.

Hex
#613af1
Hue
253°
blue
Saturation
87%
electric
Lightness
59%
balanced
Brightness
95%
HSV value
Perceived
42%
weighted brightness
Luminance
0.1192
WCAG relative
Temperature
Cool
76/100 cool
Color family
Blue
Tone
Electric
Best ink
White
6.21:1
Closest name
Blue Violet
ΔE2000 6.2
Chroma
105.7
LCH, 0–130ish
OKLCH L
0.520
perceptual lightness
Tailwind
violet
500 · ΔE 10.7
Web-safe
#6633FF
nearest of 216
Where it sits
Hue253° of 360°
Saturation87%
Lightness59%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #613af1.

Temperature
Warm ← → Cool76% 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
Red21%
Green25%
Blue53%

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

Every format

HEX#613af1
HEX (8-digit)#613af1ff
RGBrgb(97, 58, 241)
RGBArgba(97, 58, 241, 1)
HSLhsl(253, 87%, 59%)
HSV / HSBhsv(253, 76%, 95%)
HWBhwb(253 23% 5%)
CMYKcmyk(60%, 76%, 0%, 6%)
LABlab(41.1 62.4 -85.3)
LCHlch(41.1 105.7 306.2)
OKLCHoklch(0.520 0.252 283.0)
XYZ (D65)xyz(22.32, 11.92, 84.33)
Decimal6372081
Display P3color(display-p3 0.380 0.227 0.945)
Web-safe#6633FF

Copy-ready code

every platformclick to select
/* CSS */
color: #613af1;
background-color: #613af1;
/* CSS custom property */
--brand: #613af1;
/* Tailwind (arbitrary) */
class="text-[#613af1] bg-[#613af1]"
/* SCSS */
$brand: #613af1;
/* SwiftUI */
Color(red: 0.380, green: 0.227, blue: 0.945)
/* UIKit */
UIColor(red: 0.380, green: 0.227, blue: 0.945, alpha: 1)
/* Android XML */
<color name="brand">#613AF1</color>
/* Android Compose */
Color(0xFF613AF1)
/* Flutter */
Color(0xFF613AF1)
/* Python / OpenCV (BGR) */
(241, 58, 97)
/* Python / PIL (RGB) */
(97, 58, 241)
/* Java AWT */
new Color(97, 58, 241)
/* .NET */
Color.FromArgb(255, 97, 58, 241)
/* OpenGL / Unity (0–1) */
(0.3804f, 0.2275f, 0.9451f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{97,58,241}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #613af1 85%, white);
border-color: color-mix(in oklab, #613af1 40%, transparent);
/* theme-aware in one line */
color: light-dark(#200877, #D9D3EE);
/* relative colour syntax */
--hover: hsl(from #613af1 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: #F4F2FD;
  --brand-100: #EAE5FA;
  --brand-200: #CFC4F7;
  --brand-300: #AB96F8;
  --brand-400: #8162F4;
  --brand-500: #613af1;
  --brand-600: #3E10E5;
  --brand-700: #330EBE;
  --brand-800: #290B98;
  --brand-900: #210C6E;
  --brand-950: #150845;
  --brand: #613af1;
  --brand-ink: #ffffff;
  --brand-surface: #F6F4FA;
  --brand-border: #C9C0ED;
  --brand-hover: #4619EF;
  --brand-pressed: #390FD4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #171424;
    --brand-ink: #D9D3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4F2FD',
        100: '#EAE5FA',
        200: '#CFC4F7',
        300: '#AB96F8',
        400: '#8162F4',
        500: '#613af1',
        600: '#3E10E5',
        700: '#330EBE',
        800: '#290B98',
        900: '#210C6E',
        950: '#150845',
        DEFAULT: '#613af1',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4F2FD,
  '100': #EAE5FA,
  '200': #CFC4F7,
  '300': #AB96F8,
  '400': #8162F4,
  '500': #613af1,
  '600': #3E10E5,
  '700': #330EBE,
  '800': #290B98,
  '900': #210C6E,
  '950': #150845,
);
$brand-base: #613af1;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4F2FD", "$type": "color" },
      "100": { "$value": "#EAE5FA", "$type": "color" },
      "200": { "$value": "#CFC4F7", "$type": "color" },
      "300": { "$value": "#AB96F8", "$type": "color" },
      "400": { "$value": "#8162F4", "$type": "color" },
      "500": { "$value": "#613af1", "$type": "color" },
      "600": { "$value": "#3E10E5", "$type": "color" },
      "700": { "$value": "#330EBE", "$type": "color" },
      "800": { "$value": "#290B98", "$type": "color" },
      "900": { "$value": "#210C6E", "$type": "color" },
      "950": { "$value": "#150845", "$type": "color" }
    },
    "brandInk": { "$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 #613af1 · 6.21:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 6.21:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.38:1
AA fail · AA large pass · AAA fail
Reading the other direction: #613af1 as text scores 6.21:1 on white and 3.38:1 on black.
Best tinted ink on it, if plain black or white feels flat: #ECE7FD at 5.15:1.

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
#613af1 · 6.21:1
AA on whitealready passes
#613af1
The quick fox
#5227F0 · 7.22:1
AAA on white−4% L
#5227F0
The quick fox
#7C5BF3 · 4.65:1
AA on black+7% L
#7C5BF3
The quick fox
#9E86F6 · 7.19:1
AAA on black+16% L
#9E86F6

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #613AF1 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
#613af1 on white: 6.21:1
AA ✓ pass · AA-large · AAA
Aa
#613af1 on black: 3.38:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #613af1 as text on that neutral, and that neutral as text on #613af1.

NeutralRatioBoth directions
White6.21:1AaAa
Slate 505.93:1AaAa
Slate 1005.67:1AaAa
Slate 2005.03:1AaAa
Slate 3004.18:1AaAa
Slate 4002.42:1AaAa
Slate 5001.30:1AaAa
Slate 6001.22:1AaAa
Slate 7001.67:1AaAa
Slate 8002.36:1AaAa
Slate 9002.88:1AaAa
Black3.38:1AaAa
Colour vision deficiency
true color
protanopia · #0066F6
deuteranopia · #005BEE
tritanopia · #006F94

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. #613af1 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.

#F4F2FD
#EAE5FA
#CFC4F7
#AB96F8
#8162F4
#613af1
#3E10E5
#330EBE
#290B98
#210C6E
#150845
Base = 500Lightest = 50 · #F4F2FDDarkest = 950 · #150845Text 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 0.063 283.0);
  --brand-100: oklch(0.94 0.101 283.0);
  --brand-200: oklch(0.88 0.151 283.0);
  --brand-300: oklch(0.80 0.197 283.0);
  --brand-400: oklch(0.72 0.232 283.0);
  --brand-500: oklch(0.64 0.252 283.0);
  --brand-600: oklch(0.56 0.252 283.0);
  --brand-700: oklch(0.48 0.237 283.0);
  --brand-800: oklch(0.40 0.212 283.0);
  --brand-900: oklch(0.32 0.177 283.0);
  --brand-950: oklch(0.24 0.139 283.0);
}

Colors that work with #613af1

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#C9C0ED
Hairlines and dividers
Muted text#5C4B9B
Captions on the surface
Accent#C2BC0A
Second voice, not a rival
Dark variant#200877
Hover, pressed, headers
Light variant#ECE7FD
Selected rows, tints
Dark surface#171424
Dark-mode background
Hover#4619EF
One step down in lightness
Pressed#390FD4
Two steps down
Disabled#C7C3D8
Chroma pulled out
Focus ring#6B43FC
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 #613af1

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.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

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

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight41/100
  • 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#CAF13A
Analogous left#3A6EF1
Analogous right#BC3AF1
Split-complement 1#F1BC3A
Split-complement 2#6EF13A
Triadic 1#F1613A
Triadic 2#3AF161
Tetradic#F13A6E
On the wheel
Base+30°−30°+120°+240°+180°253°

#613af1 sits at 253°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red38.0%
Green22.7%
Blue94.5%
R · 0–255
97
0x61
G · 0–255
58
0x3a
B · 0–255
241
0xf1

CMYK percentages

Cyan59.8%
Magenta75.9%
Yellow0.0%
Key (black)5.5%

Total ink coverage is 141%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#613af1 text on a black background

contrast 3.38:1

Card sample

#613af1 text on a white background

contrast 6.21:1

Card sample

#613af1 on grey

5.67:1

#613af1 on its own surface

5.69:1

#613af1 on its dark surface

2.91:1

CSS3 live lab

Text font color

The quick brown fox

color: #613af1;
Background color
Panel with #613af1 background
background-color: #613af1;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #613af1;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(97, 58, 241, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(97, 58, 241, 0.45);
Border & gradient
Gradient panel
border: 3px solid #613af1;
background: linear-gradient(135deg, #613af1, #DB3AF1);
Gradient text

Gradient headline

background: linear-gradient(90deg, #613af1, #F13AD9);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #613af1;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #613af1;
caret-color: #613af1;
Left rule
Pull quote or callout
border-left: 4px solid #613af1;
Ring + tint
Selected chip
background: #ECE7FD;
box-shadow: inset 0 0 0 2px #613af1;
Conic badge
68%
background: conic-gradient(#613af1 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #613af1 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(97, 58, 241, 0.5)
rgb(97 58 241 / 50%)
#613af180
hsl(253 87% 59% / 50%)
color-mix(in srgb, #613af1 50%, transparent)
Alpha8-digit hexFlat on white
10%#613af11a#EFEBFE
20%#613af133#DFD8FC
40%#613af166#C0B0F9
60%#613af199#A089F7
80%#613af1cc#8161F4

Gradients from #613af1

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, #8F73F5, #613af1 45%, #200877);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #613af1, #E71DEF);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #613af1, #CAF13A);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #A690F7 0%, #613af1 45%, #200877 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%, #6A9DF4 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #D356F3 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #200877 0%, transparent 65%), #613af1;

Monochromatic scale

Palettes built from #613af1

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.

#613af1 in the real world

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

Industries
TechnologyFinanceHealthcareEnterprise SaaS
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 3.38:1 — lift it to #7C5BF3 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.

#613af1, answered

What color is #613af1?

#613af1 is a balanced electric blue, closest to Blue Violet (ΔE2000 6.2). It sits at 253° on the hue wheel with 87% saturation and 59% lightness, which reads as cool.

What is the RGB value of #613af1?

rgb(97, 58, 241) — 97 red, 58 green and 241 blue out of 255, or 38% / 22.7% / 94.5% by channel.

What is #613af1 in HSL and HSV?

hsl(253, 87%, 59%) and hsv(253, 76%, 95%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #613af1 a light or a dark color?

It is a dark color. Relative luminance is 0.1192 and perceived brightness is 42%, so white text on it reaches 6.21:1.

Should I use black or white text on #613af1?

White. It scores 6.21:1 against #613af1, versus 3.38:1 for black — AA at any size.

Is #613af1 accessible on a white background?

#613af1 on white scores 6.21:1, which clears AA at every size but not AAA.

What is the complementary color of #613af1?

#CAF13A sits directly opposite on the wheel. Softer options are the split-complements #F1BC3A and #6EF13A, which give the same contrast with far less vibration.

What colors go well with #613af1?

For interface work: #F6F4FA as the surface, #C9C0ED for borders, #5C4B9B for secondary text, #C2BC0A as an accent and #200877 for hover and pressed states. For a palette, the analogous pair #3A6EF1 and #BC3AF1 stays calm, while #CAF13A is the loudest partner.

What is #613af1 in CMYK for printing?

cmyk(60%, 76%, 0%, 6%). 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 #613af1 warm or cool?

Cool — it scores 76 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #A43AF1; nudged cooler, #3855F3.

Which Tailwind color is closest to #613af1?

The violet family — its 500 step is #8b5cf6, ΔE2000 10.7 away. That is a visible difference, so define #613af1 as a custom token rather than reaching for the built-in.

How do I use #613af1 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#613af1] or text-[#613af1], 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 #613af1 with 50% opacity?

rgba(97, 58, 241, 0.5), or #613af180 in eight-digit hex. Over white that composites to #B09DF8; over black, #311D79.

Is #613af1 a web-safe color?

No. The nearest web-safe colour is #6633FF, ΔE2000 1.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #613af1 mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #613af1?

The safest is same-hue elevation: linear-gradient(135deg, #8F73F5, #613af1 45%, #200877). For more colour, a short hue run to #E71DEF keeps it rich without turning muddy.

Work with #613af1 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #613af1 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.