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blue · cool

#b3b8c3

a light, muted blue · cool · closest name: Silver

Token name suggestion: Meadow Harbour

RGB
179, 184, 195
HSL
221°, 12%, 73%
CMYK
8, 6, 0, 24
Luminance
0.4780

#b3b8c3 is a light muted blue, 221° on the wheel and 65/100 on the cool side. Put black text on it (10.56:1). As text it scores 1.99:1 on white — use #6D768A instead. Nearest name is Silver, nearest Tailwind family is cyan.

hsl(221 12% 73%)rgb(179 184 195)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #b3b8c3 is made of, how bright it looks, and which way it leans.

Hex
#b3b8c3
Hue
221°
blue
Saturation
12%
muted
Lightness
73%
light
Brightness
76%
HSV value
Perceived
72%
weighted brightness
Luminance
0.4780
WCAG relative
Temperature
Cool
65/100 cool
Color family
Blue
Tone
Muted
Best ink
Black
10.56:1
Closest name
Silver
ΔE2000 5.8
Chroma
6.2
LCH, 0–130ish
OKLCH L
0.782
perceptual lightness
Tailwind
cyan
500 · ΔE 22.2
Web-safe
#CCCCCC
nearest of 216
Where it sits
Hue221° of 360°
Saturation12%
Lightness73%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b3b8c3.

Temperature
Warm ← → Cool65% 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
Red20%
Green72%
Blue8%

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

Every format

HEX#b3b8c3
HEX (8-digit)#b3b8c3ff
RGBrgb(179, 184, 195)
RGBArgba(179, 184, 195, 1)
HSLhsl(221, 12%, 73%)
HSV / HSBhsv(221, 8%, 76%)
HWBhwb(221 70% 24%)
CMYKcmyk(8%, 6%, 0%, 24%)
LABlab(74.7 0.4 -6.2)
LCHlch(74.7 6.2 273.8)
OKLCHoklch(0.782 0.017 266.3)
XYZ (D65)xyz(45.58, 47.80, 58.45)
Decimal11778243
Display P3color(display-p3 0.702 0.722 0.765)
Web-safe#CCCCCC

Copy-ready code

every platformclick to select
/* CSS */
color: #b3b8c3;
background-color: #b3b8c3;
/* CSS custom property */
--brand: #b3b8c3;
/* Tailwind (arbitrary) */
class="text-[#b3b8c3] bg-[#b3b8c3]"
/* SCSS */
$brand: #b3b8c3;
/* SwiftUI */
Color(red: 0.702, green: 0.722, blue: 0.765)
/* UIKit */
UIColor(red: 0.702, green: 0.722, blue: 0.765, alpha: 1)
/* Android XML */
<color name="brand">#B3B8C3</color>
/* Android Compose */
Color(0xFFB3B8C3)
/* Flutter */
Color(0xFFB3B8C3)
/* Python / OpenCV (BGR) */
(195, 184, 179)
/* Python / PIL (RGB) */
(179, 184, 195)
/* Java AWT */
new Color(179, 184, 195)
/* .NET */
Color.FromArgb(255, 179, 184, 195)
/* OpenGL / Unity (0–1) */
(0.7020f, 0.7216f, 0.7647f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{179,184,195}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b3b8c3 85%, white);
border-color: color-mix(in oklab, #b3b8c3 40%, transparent);
/* theme-aware in one line */
color: light-dark(#383D47, #DDDFE4);
/* relative colour syntax */
--hover: hsl(from #b3b8c3 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: #EEEFF1;
  --brand-200: #DADDE1;
  --brand-300: #b3b8c3;
  --brand-400: #A1A7B5;
  --brand-500: #828A9C;
  --brand-600: #6C7589;
  --brand-700: #5A6272;
  --brand-800: #484E5B;
  --brand-900: #373B44;
  --brand-950: #22252A;
  --brand: #b3b8c3;
  --brand-ink: #000000;
  --brand-surface: #F6F7F8;
  --brand-border: #D1D4DB;
  --brand-hover: #9FA5B3;
  --brand-pressed: #8B93A3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #191B1F;
    --brand-ink: #DDDFE4;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F7F7F8',
        100: '#EEEFF1',
        200: '#DADDE1',
        300: '#b3b8c3',
        400: '#A1A7B5',
        500: '#828A9C',
        600: '#6C7589',
        700: '#5A6272',
        800: '#484E5B',
        900: '#373B44',
        950: '#22252A',
        DEFAULT: '#b3b8c3',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F7F7F8,
  '100': #EEEFF1,
  '200': #DADDE1,
  '300': #b3b8c3,
  '400': #A1A7B5,
  '500': #828A9C,
  '600': #6C7589,
  '700': #5A6272,
  '800': #484E5B,
  '900': #373B44,
  '950': #22252A,
);
$brand-base: #b3b8c3;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F7F7F8", "$type": "color" },
      "100": { "$value": "#EEEFF1", "$type": "color" },
      "200": { "$value": "#DADDE1", "$type": "color" },
      "300": { "$value": "#b3b8c3", "$type": "color" },
      "400": { "$value": "#A1A7B5", "$type": "color" },
      "500": { "$value": "#828A9C", "$type": "color" },
      "600": { "$value": "#6C7589", "$type": "color" },
      "700": { "$value": "#5A6272", "$type": "color" },
      "800": { "$value": "#484E5B", "$type": "color" },
      "900": { "$value": "#373B44", "$type": "color" },
      "950": { "$value": "#22252A", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$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#000000 on #b3b8c3 · 10.56:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.99:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.56:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b3b8c3 as text scores 1.99:1 on white and 10.56:1 on black.
Best tinted ink on it, if plain black or white feels flat: #383D47 at 5.48:1.

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
#6D768A · 4.56:1
AA on white−25% L
#6D768A
The quick fox
#525867 · 7.12:1
AAA on white−37% L
#525867
The quick fox
#b3b8c3 · 10.56:1
AA on blackalready passes
#b3b8c3
The quick fox
#b3b8c3 · 10.56:1
AAA on blackalready passes
#b3b8c3

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #8E95A6 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
#b3b8c3 on white: 1.99:1
AA ✗ fail · AA-large · AAA
Aa
#b3b8c3 on black: 10.56:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b3b8c3 as text on that neutral, and that neutral as text on #b3b8c3.

NeutralRatioBoth directions
White1.99:1AaAa
Slate 501.90:1AaAa
Slate 1001.82:1AaAa
Slate 2001.61:1AaAa
Slate 3001.34:1AaAa
Slate 4001.29:1AaAa
Slate 5002.39:1AaAa
Slate 6003.81:1AaAa
Slate 7005.21:1AaAa
Slate 8007.36:1AaAa
Slate 9008.98:1AaAa
Black10.56:1AaAa
Colour vision deficiency
true color
protanopia · #B5B9C4
deuteranopia · #B4B7C3
tritanopia · #B0BABB

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. #b3b8c3 is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F7F7F8
#EEEFF1
#DADDE1
#b3b8c3
#A1A7B5
#828A9C
#6C7589
#5A6272
#484E5B
#373B44
#22252A
Base = 300Lightest = 50 · #F7F7F8Darkest = 950 · #22252AText 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 0.004 266.3);
  --brand-100: oklch(0.94 0.007 266.3);
  --brand-200: oklch(0.88 0.010 266.3);
  --brand-300: oklch(0.80 0.013 266.3);
  --brand-400: oklch(0.72 0.015 266.3);
  --brand-500: oklch(0.64 0.017 266.3);
  --brand-600: oklch(0.56 0.017 266.3);
  --brand-700: oklch(0.48 0.016 266.3);
  --brand-800: oklch(0.40 0.014 266.3);
  --brand-900: oklch(0.32 0.012 266.3);
  --brand-950: oklch(0.24 0.009 266.3);
}

Colors that work with #b3b8c3

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

Text on it#000000
Black wins here
Surface#F6F7F8
Tinted page background
Border#D1D4DB
Hairlines and dividers
Muted text#656E80
Captions on the surface
Accent#776555
Second voice, not a rival
Dark variant#383D47
Hover, pressed, headers
Light variant#F1F2F4
Selected rows, tints
Dark surface#191B1F
Dark-mode background
Hover#9FA5B3
One step down in lightness
Pressed#8B93A3
Two steps down
Disabled#F2F2F4
Chroma pulled out
Focus ring#B8C0D2
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 #b3b8c3

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

Works well for
  • Text and icons on dark surfaces
  • Borders, dividers and quiet backgrounds
  • Long-form reading surfaces
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • White text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #383D47
Safe as a 1px border on white
No — use #8E95A6

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.

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

Worth knowing

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

Reads as
  • FormalityMedium
  • EnergyLow
  • Weight27/100
  • 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#C3BEB3
Analogous left#B3C0C3
Analogous right#B6B3C3
Split-complement 1#C3B6B3
Split-complement 2#C0C3B3
Triadic 1#C3B3B8
Triadic 2#B8C3B3
Tetradic#C3B3C0
On the wheel
Base+30°−30°+120°+240°+180°221°

#b3b8c3 sits at 221°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red70.2%
Green72.2%
Blue76.5%
R · 0–255
179
0xb3
G · 0–255
184
0xb8
B · 0–255
195
0xc3

CMYK percentages

Cyan8.2%
Magenta5.6%
Yellow0.0%
Key (black)23.5%

Total ink coverage is 37%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b3b8c3 text on a black background

contrast 10.56:1

Card sample

#b3b8c3 text on a white background

contrast 1.99:1

Card sample

#b3b8c3 on grey

1.82:1

#b3b8c3 on its own surface

1.85:1

#b3b8c3 on its dark surface

8.67:1

CSS3 live lab

Text font color

The quick brown fox

color: #b3b8c3;
Background color
Panel with #b3b8c3 background
background-color: #b3b8c3;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b3b8c3;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(179, 184, 195, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(179, 184, 195, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b3b8c3;
background: linear-gradient(135deg, #b3b8c3, #B9B3C3);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b3b8c3, #BDB3C3);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b3b8c3;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b3b8c3;
caret-color: #b3b8c3;
Left rule
Pull quote or callout
border-left: 4px solid #b3b8c3;
Ring + tint
Selected chip
background: #F1F2F4;
box-shadow: inset 0 0 0 2px #b3b8c3;
Conic badge
68%
background: conic-gradient(#b3b8c3 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b3b8c3 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(179, 184, 195, 0.5)
rgb(179 184 195 / 50%)
#b3b8c380
hsl(221 12% 73% / 50%)
color-mix(in srgb, #b3b8c3 50%, transparent)
Alpha8-digit hexFlat on white
10%#b3b8c31a#F7F8F9
20%#b3b8c333#F0F1F3
40%#b3b8c366#E1E3E7
60%#b3b8c399#D1D4DB
80%#b3b8c3cc#C2C6CF

Gradients from #b3b8c3

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, #D5D8DE, #b3b8c3 45%, #383D47);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b3b8c3, #AAA2B5);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b3b8c3, #C3BEB3);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E6E8EB 0%, #b3b8c3 45%, #383D47 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F6F7F8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #CFD8D9 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C7C4D0 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #383D47 0%, transparent 65%), #b3b8c3;

Monochromatic scale

Palettes built from #b3b8c3

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.

#b3b8c3 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
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

Usable as-is on a dark surface at 10.56:1.

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.

#b3b8c3, answered

What color is #b3b8c3?

#b3b8c3 is a light muted blue, closest to Silver (ΔE2000 5.8). It sits at 221° on the hue wheel with 12% saturation and 73% lightness, which reads as cool.

What is the RGB value of #b3b8c3?

rgb(179, 184, 195) — 179 red, 184 green and 195 blue out of 255, or 70.2% / 72.2% / 76.5% by channel.

What is #b3b8c3 in HSL and HSV?

hsl(221, 12%, 73%) and hsv(221, 8%, 76%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b3b8c3 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4780 and perceived brightness is 72%, so black text on it reaches 10.56:1.

Should I use black or white text on #b3b8c3?

Black. It scores 10.56:1 against #b3b8c3, versus 1.99:1 for white — AAA at any size.

Is #b3b8c3 accessible on a white background?

#b3b8c3 on white scores 1.99:1, which fails WCAG AA at every size. Darken it to #6D768A to reach 4.5:1, or #525867 for 7:1.

What is the complementary color of #b3b8c3?

#C3BEB3 sits directly opposite on the wheel. Softer options are the split-complements #C3B6B3 and #C0C3B3, which give the same contrast with far less vibration.

What colors go well with #b3b8c3?

For interface work: #F6F7F8 as the surface, #D1D4DB for borders, #656E80 for secondary text, #776555 as an accent and #383D47 for hover and pressed states. For a palette, the analogous pair #B3C0C3 and #B6B3C3 stays calm, while #C3BEB3 is the loudest partner.

What is #b3b8c3 in CMYK for printing?

cmyk(8%, 6%, 0%, 24%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b3b8c3 warm or cool?

Cool — it scores 65 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #B4B3C3; nudged cooler, #B2BAC4.

Which Tailwind color is closest to #b3b8c3?

The cyan family — its 500 step is #06b6d4, ΔE2000 22.2 away. That is a visible difference, so define #b3b8c3 as a custom token rather than reaching for the built-in.

How do I use #b3b8c3 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b3b8c3] or text-[#b3b8c3], 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 #b3b8c3 with 50% opacity?

rgba(179, 184, 195, 0.5), or #b3b8c380 in eight-digit hex. Over white that composites to #D9DCE1; over black, #5A5C62.

Is #b3b8c3 a web-safe color?

No. The nearest web-safe colour is #CCCCCC, ΔE2000 7.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #b3b8c3 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 low chroma the association is faint; it behaves more like a neutral.

What gradient works with #b3b8c3?

The safest is same-hue elevation: linear-gradient(135deg, #D5D8DE, #b3b8c3 45%, #383D47). For more colour, a short hue run to #AAA2B5 keeps it rich without turning muddy.

Work with #b3b8c3 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b3b8c3 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.