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gray · cool

#4f525b

a dark, muted gray · cool · closest name: Dim Gray

Token name suggestion: Slate Graphite

RGB
79, 82, 91
HSL
225°, 7%, 33%
CMYK
13, 10, 0, 64
Luminance
0.0845

#4f525b is a dark muted gray, 225° on the wheel and 58/100 on the cool side. Put white text on it (7.81:1). As text it scores 7.81:1 on white — safe at any size. Nearest name is Dim Gray, nearest Tailwind family is zinc.

hsl(225 7% 33%)rgb(79 82 91)Base step 800AAA inkCool

At a glance

Every number on this page in one read: what #4f525b is made of, how bright it looks, and which way it leans.

Hex
#4f525b
Hue
225°
gray
Saturation
7%
muted
Lightness
33%
dark
Brightness
36%
HSV value
Perceived
32%
weighted brightness
Luminance
0.0845
WCAG relative
Temperature
Cool
58/100 cool
Color family
Gray
Tone
Muted
Best ink
White
7.81:1
Closest name
Dim Gray
ΔE2000 9.8
Chroma
5.7
LCH, 0–130ish
OKLCH L
0.439
perceptual lightness
Tailwind
zinc
500 · ΔE 11.8
Web-safe
#666666
nearest of 216
Where it sits
Hue225° of 360°
Saturation7%
Lightness33%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #4f525b.

Temperature
Warm ← → Cool58% cool

Near-neutral, so temperature is a whisper rather than a statement — the tinted siblings below show which way it can lean.

Luminance by channel
Red20%
Green71%
Blue9%

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

Every format

HEX#4f525b
HEX (8-digit)#4f525bff
RGBrgb(79, 82, 91)
RGBArgba(79, 82, 91, 1)
HSLhsl(225, 7%, 33%)
HSV / HSBhsv(225, 13%, 36%)
HWBhwb(225 31% 64%)
CMYKcmyk(13%, 10%, 0%, 64%)
LABlab(34.9 0.9 -5.7)
LCHlch(34.9 5.7 278.8)
OKLCHoklch(0.439 0.015 271.1)
XYZ (D65)xyz(8.13, 8.45, 11.10)
Decimal5198427
Display P3color(display-p3 0.310 0.322 0.357)
Web-safe#666666

Copy-ready code

every platformclick to select
/* CSS */
color: #4f525b;
background-color: #4f525b;
/* CSS custom property */
--brand: #4f525b;
/* Tailwind (arbitrary) */
class="text-[#4f525b] bg-[#4f525b]"
/* SCSS */
$brand: #4f525b;
/* SwiftUI */
Color(red: 0.310, green: 0.322, blue: 0.357)
/* UIKit */
UIColor(red: 0.310, green: 0.322, blue: 0.357, alpha: 1)
/* Android XML */
<color name="brand">#4F525B</color>
/* Android Compose */
Color(0xFF4F525B)
/* Flutter */
Color(0xFF4F525B)
/* Python / OpenCV (BGR) */
(91, 82, 79)
/* Python / PIL (RGB) */
(79, 82, 91)
/* Java AWT */
new Color(79, 82, 91)
/* .NET */
Color.FromArgb(255, 79, 82, 91)
/* OpenGL / Unity (0–1) */
(0.3098f, 0.3216f, 0.3569f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{79,82,91}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #4f525b 85%, white);
border-color: color-mix(in oklab, #4f525b 40%, transparent);
/* theme-aware in one line */
color: light-dark(#3B3D44, #DEDFE3);
/* relative colour syntax */
--hover: hsl(from #4f525b 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: #F7F7F8;
  --brand-100: #EFEFF1;
  --brand-200: #DCDDE0;
  --brand-300: #C3C5CB;
  --brand-400: #A5A8B1;
  --brand-500: #878B97;
  --brand-600: #727683;
  --brand-700: #5F626D;
  --brand-800: #4f525b;
  --brand-900: #393B41;
  --brand-950: #242529;
  --brand: #4f525b;
  --brand-ink: #ffffff;
  --brand-surface: #F7F7F8;
  --brand-border: #D3D5D9;
  --brand-hover: #3E4148;
  --brand-pressed: #2E2F35;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1A1B1E;
    --brand-ink: #DEDFE3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F7F7F8',
        100: '#EFEFF1',
        200: '#DCDDE0',
        300: '#C3C5CB',
        400: '#A5A8B1',
        500: '#878B97',
        600: '#727683',
        700: '#5F626D',
        800: '#4f525b',
        900: '#393B41',
        950: '#242529',
        DEFAULT: '#4f525b',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F7F7F8,
  '100': #EFEFF1,
  '200': #DCDDE0,
  '300': #C3C5CB,
  '400': #A5A8B1,
  '500': #878B97,
  '600': #727683,
  '700': #5F626D,
  '800': #4f525b,
  '900': #393B41,
  '950': #242529,
);
$brand-base: #4f525b;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F7F7F8", "$type": "color" },
      "100": { "$value": "#EFEFF1", "$type": "color" },
      "200": { "$value": "#DCDDE0", "$type": "color" },
      "300": { "$value": "#C3C5CB", "$type": "color" },
      "400": { "$value": "#A5A8B1", "$type": "color" },
      "500": { "$value": "#878B97", "$type": "color" },
      "600": { "$value": "#727683", "$type": "color" },
      "700": { "$value": "#5F626D", "$type": "color" },
      "800": { "$value": "#4f525b", "$type": "color" },
      "900": { "$value": "#393B41", "$type": "color" },
      "950": { "$value": "#242529", "$type": "color" }
    },
    "brandInk": { "$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 #4f525b · 7.81:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 7.81:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 2.69:1
AA fail · AA large fail · AAA fail
Reading the other direction: #4f525b as text scores 7.81:1 on white and 2.69:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F1F2F3 at 6.96:1.

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
#4f525b · 7.81:1
AA on whitealready passes
#4f525b
The quick fox
#4f525b · 7.81:1
AAA on whitealready passes
#4f525b
The quick fox
#707481 · 4.50:1
AA on black+14% L
#707481
The quick fox
#9396A1 · 7.12:1
AAA on black+27% L
#9396A1

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #4F525B 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
#4f525b on white: 7.81:1
AA ✓ pass · AA-large · AAA
Aa
#4f525b on black: 2.69:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #4f525b as text on that neutral, and that neutral as text on #4f525b.

NeutralRatioBoth directions
White7.81:1AaAa
Slate 507.46:1AaAa
Slate 1007.12:1AaAa
Slate 2006.33:1AaAa
Slate 3005.26:1AaAa
Slate 4003.04:1AaAa
Slate 5001.64:1AaAa
Slate 6001.03:1AaAa
Slate 7001.33:1AaAa
Slate 8001.87:1AaAa
Slate 9002.29:1AaAa
Black2.69:1AaAa
Colour vision deficiency
true color
protanopia · #50535B
deuteranopia · #4F525B
tritanopia · #4C5455

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. #4f525b is pinned to step 800; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F7F7F8
#EFEFF1
#DCDDE0
#C3C5CB
#A5A8B1
#878B97
#727683
#5F626D
#4f525b
#393B41
#242529
Base = 800Lightest = 50 · #F7F7F8Darkest = 950 · #242529Text step on white = 600
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 0.004 271.1);
  --brand-100: oklch(0.94 0.006 271.1);
  --brand-200: oklch(0.88 0.009 271.1);
  --brand-300: oklch(0.80 0.012 271.1);
  --brand-400: oklch(0.72 0.014 271.1);
  --brand-500: oklch(0.64 0.015 271.1);
  --brand-600: oklch(0.56 0.015 271.1);
  --brand-700: oklch(0.48 0.014 271.1);
  --brand-800: oklch(0.40 0.013 271.1);
  --brand-900: oklch(0.32 0.011 271.1);
  --brand-950: oklch(0.24 0.008 271.1);
}

Colors that work with #4f525b

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#F7F7F8
Tinted page background
Border#D3D5D9
Hairlines and dividers
Muted text#6B6F7B
Captions on the surface
Accent#5E554B
Second voice, not a rival
Dark variant#3B3D44
Hover, pressed, headers
Light variant#F1F2F3
Selected rows, tints
Dark surface#1A1B1E
Dark-mode background
Hover#3E4148
One step down in lightness
Pressed#2E2F35
Two steps down
Disabled#858995
Chroma pulled out
Focus ring#4F576F
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 #4f525b

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

Works well for
  • Body text and links on white
  • Borders, dividers and quiet backgrounds
  • Long-form reading surfaces
  • Headers, footers and dark-mode surfaces
  • Neutral UI chrome and typography
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.

neutralquieteditorialengineered

Grey is the material the rest of the interface is built from: type, rules, surfaces, disabled states.

With almost no chroma left, the family association is barely present; treat it as a neutral that happens to lean this way. The low lightness adds weight and formality.

Worth knowing

Mid-greys are where accessibility quietly fails — check every step of your ladder, not just the ends.

Reads as
  • FormalityHigh
  • EnergyLow
  • Weight67/100
  • 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#5B584F
Analogous left#4F585B
Analogous right#524F5B
Split-complement 1#5B524F
Split-complement 2#585B4F
Triadic 1#5B4F52
Triadic 2#525B4F
Tetradic#5B4F58
On the wheel
Base+30°−30°+120°+240°+180°225°

#4f525b sits at 225°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red31.0%
Green32.2%
Blue35.7%
R · 0–255
79
0x4f
G · 0–255
82
0x52
B · 0–255
91
0x5b

CMYK percentages

Cyan13.2%
Magenta9.9%
Yellow0.0%
Key (black)64.3%

Total ink coverage is 87%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#4f525b text on a black background

contrast 2.69:1

Card sample

#4f525b text on a white background

contrast 7.81:1

Card sample

#4f525b on grey

7.12:1

#4f525b on its own surface

7.29:1

#4f525b on its dark surface

2.21:1

CSS3 live lab

Text font color

The quick brown fox

color: #4f525b;
Background color
Panel with #4f525b background
background-color: #4f525b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4f525b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(79, 82, 91, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(79, 82, 91, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4f525b;
background: linear-gradient(135deg, #4f525b, #544F5B);
Gradient text

Gradient headline

background: linear-gradient(90deg, #4f525b, #574F5B);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #4f525b;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #4f525b;
caret-color: #4f525b;
Left rule
Pull quote or callout
border-left: 4px solid #4f525b;
Ring + tint
Selected chip
background: #F1F2F3;
box-shadow: inset 0 0 0 2px #4f525b;
Conic badge
68%
background: conic-gradient(#4f525b 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #4f525b 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, 82, 91, 0.5)
rgb(79 82 91 / 50%)
#4f525b80
hsl(225 7% 33% / 50%)
color-mix(in srgb, #4f525b 50%, transparent)
Alpha8-digit hexFlat on white
10%#4f525b1a#EDEEEF
20%#4f525b33#DCDCDE
40%#4f525b66#B9BABD
60%#4f525b99#95979D
80%#4f525bcc#72757C

Gradients from #4f525b

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, #6B6F7C, #4f525b 45%, #3B3D44);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #4f525b, #46414B);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #4f525b, #5B584F);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #7A7E8C 0%, #4f525b 45%, #3B3D44 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F7F7F8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #677476 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #625D6B 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #3B3D44 0%, transparent 65%), #4f525b;

Monochromatic scale

Palettes built from #4f525b

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.

#4f525b in the real world

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

Industries
EditorialArchitectureEnterpriseLuxury goods
Common UI roles
BackgroundsBordersBody textDividers
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 2.69:1 — lift it to #707481 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.

#4f525b, answered

What color is #4f525b?

#4f525b is a dark muted gray, closest to Dim Gray (ΔE2000 9.8). It sits at 225° on the hue wheel with 7% saturation and 33% lightness, which reads as cool.

What is the RGB value of #4f525b?

rgb(79, 82, 91) — 79 red, 82 green and 91 blue out of 255, or 31% / 32.2% / 35.7% by channel.

What is #4f525b in HSL and HSV?

hsl(225, 7%, 33%) and hsv(225, 13%, 36%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #4f525b a light or a dark color?

It is a dark color. Relative luminance is 0.0845 and perceived brightness is 32%, so white text on it reaches 7.81:1.

Should I use black or white text on #4f525b?

White. It scores 7.81:1 against #4f525b, versus 2.69:1 for black — AAA at any size.

Is #4f525b accessible on a white background?

#4f525b on white scores 7.81:1, which clears AAA at every size.

What is the complementary color of #4f525b?

#5B584F sits directly opposite on the wheel. Softer options are the split-complements #5B524F and #585B4F, which give the same contrast with far less vibration.

What colors go well with #4f525b?

For interface work: #F7F7F8 as the surface, #D3D5D9 for borders, #6B6F7B for secondary text, #5E554B as an accent and #3B3D44 for hover and pressed states. For a palette, the analogous pair #4F585B and #524F5B stays calm, while #5B584F is the loudest partner.

What is #4f525b in CMYK for printing?

cmyk(13%, 10%, 0%, 64%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4f525b warm or cool?

Cool — it scores 58 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #67584D; nudged cooler, #454F5B.

Which Tailwind color is closest to #4f525b?

The zinc family — its 500 step is #71717a, ΔE2000 11.8 away. That is a visible difference, so define #4f525b as a custom token rather than reaching for the built-in.

How do I use #4f525b in Tailwind CSS?

Inline it as an arbitrary value with bg-[#4f525b] or text-[#4f525b], 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 #4f525b with 50% opacity?

rgba(79, 82, 91, 0.5), or #4f525b80 in eight-digit hex. Over white that composites to #A7A9AD; over black, #28292E.

Is #4f525b a web-safe color?

No. The nearest web-safe colour is #666666, ΔE2000 8.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #4f525b mean?

As a gray, it reads neutral, quiet, editorial. Grey is the material the rest of the interface is built from: type, rules, surfaces, disabled states. At this low chroma the association is faint; it behaves more like a neutral.

What gradient works with #4f525b?

The safest is same-hue elevation: linear-gradient(135deg, #6B6F7C, #4f525b 45%, #3B3D44). For more colour, a short hue run to #46414B keeps it rich without turning muddy.

Work with #4f525b in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #4f525b at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.