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violet · cool

#4f388f

a dark, soft violet · cool · closest name: Dark Slate Blue

Token name suggestion: Slate Iris

RGB
79, 56, 143
HSL
256°, 44%, 39%
CMYK
45, 61, 0, 44
Luminance
0.0647

#4f388f is a dark soft violet, 256° on the wheel and 75/100 on the cool side. Put white text on it (9.15:1). As text it scores 9.15:1 on white — safe at any size. Nearest name is Dark Slate Blue, nearest Tailwind family is indigo.

hsl(256 44% 39%)rgb(79 56 143)Base step 700AAA inkCool

At a glance

Every number on this page in one read: what #4f388f is made of, how bright it looks, and which way it leans.

Hex
#4f388f
Hue
256°
violet
Saturation
44%
soft
Lightness
39%
dark
Brightness
56%
HSV value
Perceived
30%
weighted brightness
Luminance
0.0647
WCAG relative
Temperature
Cool
75/100 cool
Color family
Violet
Tone
Soft
Best ink
White
9.15:1
Closest name
Dark Slate Blue
ΔE2000 2.5
Chroma
55.2
LCH, 0–130ish
OKLCH L
0.415
perceptual lightness
Tailwind
indigo
500 · ΔE 19.6
Web-safe
#663399
nearest of 216
Where it sits
Hue256° of 360°
Saturation44%
Lightness39%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #4f388f.

Temperature
Warm ← → Cool75% 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
Red26%
Green44%
Blue31%

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

Every format

HEX#4f388f
HEX (8-digit)#4f388fff
RGBrgb(79, 56, 143)
RGBArgba(79, 56, 143, 1)
HSLhsl(256, 44%, 39%)
HSV / HSBhsv(256, 61%, 56%)
HWBhwb(256 22% 44%)
CMYKcmyk(45%, 61%, 0%, 44%)
LABlab(30.6 32.0 -44.9)
LCHlch(30.6 55.2 305.5)
OKLCHoklch(0.415 0.138 291.4)
XYZ (D65)xyz(9.60, 6.47, 26.73)
Decimal5191823
Display P3color(display-p3 0.310 0.220 0.561)
Web-safe#663399

Copy-ready code

every platformclick to select
/* CSS */
color: #4f388f;
background-color: #4f388f;
/* CSS custom property */
--brand: #4f388f;
/* Tailwind (arbitrary) */
class="text-[#4f388f] bg-[#4f388f]"
/* SCSS */
$brand: #4f388f;
/* SwiftUI */
Color(red: 0.310, green: 0.220, blue: 0.561)
/* UIKit */
UIColor(red: 0.310, green: 0.220, blue: 0.561, alpha: 1)
/* Android XML */
<color name="brand">#4F388F</color>
/* Android Compose */
Color(0xFF4F388F)
/* Flutter */
Color(0xFF4F388F)
/* Python / OpenCV (BGR) */
(143, 56, 79)
/* Python / PIL (RGB) */
(79, 56, 143)
/* Java AWT */
new Color(79, 56, 143)
/* .NET */
Color.FromArgb(255, 79, 56, 143)
/* OpenGL / Unity (0–1) */
(0.3098f, 0.2196f, 0.5608f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{79,56,143}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #4f388f 85%, white);
border-color: color-mix(in oklab, #4f388f 40%, transparent);
/* theme-aware in one line */
color: light-dark(#33245C, #DAD3EE);
/* relative colour syntax */
--hover: hsl(from #4f388f 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: #F6F5FA;
  --brand-100: #EDEAF5;
  --brand-200: #D8D1EB;
  --brand-300: #BBAEDF;
  --brand-400: #9A86D0;
  --brand-500: #785EC0;
  --brand-600: #6145B0;
  --brand-700: #4f388f;
  --brand-800: #412E75;
  --brand-900: #322556;
  --brand-950: #1F1736;
  --brand: #4f388f;
  --brand-ink: #ffffff;
  --brand-surface: #F6F4FA;
  --brand-border: #CEC4E8;
  --brand-hover: #412E75;
  --brand-pressed: #33245C;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #181424;
    --brand-ink: #DAD3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6F5FA',
        100: '#EDEAF5',
        200: '#D8D1EB',
        300: '#BBAEDF',
        400: '#9A86D0',
        500: '#785EC0',
        600: '#6145B0',
        700: '#4f388f',
        800: '#412E75',
        900: '#322556',
        950: '#1F1736',
        DEFAULT: '#4f388f',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6F5FA,
  '100': #EDEAF5,
  '200': #D8D1EB,
  '300': #BBAEDF,
  '400': #9A86D0,
  '500': #785EC0,
  '600': #6145B0,
  '700': #4f388f,
  '800': #412E75,
  '900': #322556,
  '950': #1F1736,
);
$brand-base: #4f388f;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6F5FA", "$type": "color" },
      "100": { "$value": "#EDEAF5", "$type": "color" },
      "200": { "$value": "#D8D1EB", "$type": "color" },
      "300": { "$value": "#BBAEDF", "$type": "color" },
      "400": { "$value": "#9A86D0", "$type": "color" },
      "500": { "$value": "#785EC0", "$type": "color" },
      "600": { "$value": "#6145B0", "$type": "color" },
      "700": { "$value": "#4f388f", "$type": "color" },
      "800": { "$value": "#412E75", "$type": "color" },
      "900": { "$value": "#322556", "$type": "color" },
      "950": { "$value": "#1F1736", "$type": "color" }
    },
    "brandInk": { "$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 #4f388f · 9.15:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 9.15:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 2.29:1
AA fail · AA large fail · AAA fail
Reading the other direction: #4f388f as text scores 9.15:1 on white and 2.29:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F0EDF8 at 7.92:1.

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
#4f388f · 9.15:1
AA on whitealready passes
#4f388f
The quick fox
#4f388f · 9.15:1
AAA on whitealready passes
#4f388f
The quick fox
#7E65C3 · 4.54:1
AA on black+19% L
#7E65C3
The quick fox
#A08DD2 · 7.24:1
AAA on black+30% L
#A08DD2

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #4F388F 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
#4f388f on white: 9.15:1
AA ✓ pass · AA-large · AAA
Aa
#4f388f on black: 2.29:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #4f388f as text on that neutral, and that neutral as text on #4f388f.

NeutralRatioBoth directions
White9.15:1AaAa
Slate 508.75:1AaAa
Slate 1008.35:1AaAa
Slate 2007.42:1AaAa
Slate 3006.16:1AaAa
Slate 4003.57:1AaAa
Slate 5001.92:1AaAa
Slate 6001.21:1AaAa
Slate 7001.13:1AaAa
Slate 8001.60:1AaAa
Slate 9001.95:1AaAa
Black2.29:1AaAa
Colour vision deficiency
true color
protanopia · #004992
deuteranopia · #00468D
tritanopia · #3D4B5E

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. #4f388f is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6F5FA
#EDEAF5
#D8D1EB
#BBAEDF
#9A86D0
#785EC0
#6145B0
#4f388f
#412E75
#322556
#1F1736
Base = 700Lightest = 50 · #F6F5FADarkest = 950 · #1F1736Text 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 0.034 291.4);
  --brand-100: oklch(0.94 0.055 291.4);
  --brand-200: oklch(0.88 0.083 291.4);
  --brand-300: oklch(0.80 0.107 291.4);
  --brand-400: oklch(0.72 0.127 291.4);
  --brand-500: oklch(0.64 0.138 291.4);
  --brand-600: oklch(0.56 0.138 291.4);
  --brand-700: oklch(0.48 0.129 291.4);
  --brand-800: oklch(0.40 0.116 291.4);
  --brand-900: oklch(0.32 0.096 291.4);
  --brand-950: oklch(0.24 0.076 291.4);
}

Colors that work with #4f388f

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#CEC4E8
Hairlines and dividers
Muted text#604B9B
Captions on the surface
Accent#959735
Second voice, not a rival
Dark variant#33245C
Hover, pressed, headers
Light variant#F0EDF8
Selected rows, tints
Dark surface#181424
Dark-mode background
Hover#412E75
One step down in lightness
Pressed#33245C
Two steps down
Disabled#9186B1
Chroma pulled out
Focus ring#5233A9
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 #4f388f

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

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text on black or near-black surfaces
  • Black text placed on it
  • 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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. The low lightness adds weight and formality.

Worth knowing

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

Reads as
  • FormalityHigh
  • EnergyMedium
  • Weight61/100
  • 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#788F38
Analogous left#384C8F
Analogous right#7A388F
Split-complement 1#8F7A38
Split-complement 2#4C8F38
Triadic 1#8F4F38
Triadic 2#388F4F
Tetradic#8F384C
On the wheel
Base+30°−30°+120°+240°+180°256°

#4f388f sits at 256°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red31.0%
Green22.0%
Blue56.1%
R · 0–255
79
0x4f
G · 0–255
56
0x38
B · 0–255
143
0x8f

CMYK percentages

Cyan44.8%
Magenta60.8%
Yellow0.0%
Key (black)43.9%

Total ink coverage is 150%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#4f388f text on a black background

contrast 2.29:1

Card sample

#4f388f text on a white background

contrast 9.15:1

Card sample

#4f388f on grey

8.35:1

#4f388f on its own surface

8.38:1

#4f388f on its dark surface

1.97:1

CSS3 live lab

Text font color

The quick brown fox

color: #4f388f;
Background color
Panel with #4f388f background
background-color: #4f388f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4f388f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(79, 56, 143, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(79, 56, 143, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4f388f;
background: linear-gradient(135deg, #4f388f, #89388F);
Gradient text

Gradient headline

background: linear-gradient(90deg, #4f388f, #8F387F);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #4f388f;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #4f388f;
caret-color: #4f388f;
Left rule
Pull quote or callout
border-left: 4px solid #4f388f;
Ring + tint
Selected chip
background: #F0EDF8;
box-shadow: inset 0 0 0 2px #4f388f;
Conic badge
68%
background: conic-gradient(#4f388f 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #4f388f 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(79, 56, 143, 0.5)
rgb(79 56 143 / 50%)
#4f388f80
hsl(256 44% 39% / 50%)
color-mix(in srgb, #4f388f 50%, transparent)
Alpha8-digit hexFlat on white
10%#4f388f1a#EDEBF4
20%#4f388f33#DCD7E9
40%#4f388f66#B9AFD2
60%#4f388f99#9588BC
80%#4f388fcc#7260A5

Gradients from #4f388f

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, #684BB9, #4f388f 45%, #33245C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #4f388f, #792F78);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #4f388f, #788F38);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #7B61C1 0%, #4f388f 45%, #33245C 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%, #4669B4 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #9641A5 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #33245C 0%, transparent 65%), #4f388f;

Monochromatic scale

Palettes built from #4f388f

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.

#4f388f 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 2.29:1 — lift it to #7E65C3 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.

#4f388f, answered

What color is #4f388f?

#4f388f is a dark soft violet, closest to Dark Slate Blue (ΔE2000 2.5). It sits at 256° on the hue wheel with 44% saturation and 39% lightness, which reads as cool.

What is the RGB value of #4f388f?

rgb(79, 56, 143) — 79 red, 56 green and 143 blue out of 255, or 31% / 22% / 56.1% by channel.

What is #4f388f in HSL and HSV?

hsl(256, 44%, 39%) and hsv(256, 61%, 56%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #4f388f a light or a dark color?

It is a dark color. Relative luminance is 0.0647 and perceived brightness is 30%, so white text on it reaches 9.15:1.

Should I use black or white text on #4f388f?

White. It scores 9.15:1 against #4f388f, versus 2.29:1 for black — AAA at any size.

Is #4f388f accessible on a white background?

#4f388f on white scores 9.15:1, which clears AAA at every size.

What is the complementary color of #4f388f?

#788F38 sits directly opposite on the wheel. Softer options are the split-complements #8F7A38 and #4C8F38, which give the same contrast with far less vibration.

What colors go well with #4f388f?

For interface work: #F6F4FA as the surface, #CEC4E8 for borders, #604B9B for secondary text, #959735 as an accent and #33245C for hover and pressed states. For a palette, the analogous pair #384C8F and #7A388F stays calm, while #788F38 is the loudest partner.

What is #4f388f in CMYK for printing?

cmyk(45%, 61%, 0%, 44%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4f388f warm or cool?

Cool — it scores 75 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #6F388F; nudged cooler, #363F91.

Which Tailwind color is closest to #4f388f?

The indigo family — its 500 step is #6366f1, ΔE2000 19.6 away. That is a visible difference, so define #4f388f as a custom token rather than reaching for the built-in.

How do I use #4f388f in Tailwind CSS?

Inline it as an arbitrary value with bg-[#4f388f] or text-[#4f388f], 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 #4f388f with 50% opacity?

rgba(79, 56, 143, 0.5), or #4f388f80 in eight-digit hex. Over white that composites to #A79CC7; over black, #281C48.

Is #4f388f a web-safe color?

No. The nearest web-safe colour is #663399, ΔE2000 5 away. The palette only matters for legacy displays and some email clients now.

What does the color #4f388f 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 moderate chroma the association is present but not shouted.

What gradient works with #4f388f?

The safest is same-hue elevation: linear-gradient(135deg, #684BB9, #4f388f 45%, #33245C). For more colour, a short hue run to #792F78 keeps it rich without turning muddy.

Work with #4f388f in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #4f388f at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.