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cyan · neutral

#282f2d

a deep, muted cyan · neutral · closest name: Dark Slate Gray

Token name suggestion: Abyss Teal

RGB
40, 47, 45
HSL
163°, 8%, 17%
CMYK
15, 0, 4, 82
Luminance
0.0267

#282f2d is a deep muted cyan, 163° on the wheel and 57/100 on the cool side. Put white text on it (13.68:1). As text it scores 13.68:1 on white — safe at any size. Nearest name is Dark Slate Gray, nearest Tailwind family is neutral.

hsl(163 8% 17%)rgb(40 47 45)Base step 950AAA inkNeutral

At a glance

Every number on this page in one read: what #282f2d is made of, how bright it looks, and which way it leans.

Hex
#282f2d
Hue
163°
cyan
Saturation
8%
muted
Lightness
17%
deep
Brightness
18%
HSV value
Perceived
18%
weighted brightness
Luminance
0.0267
WCAG relative
Temperature
Neutral
57/100 cool
Color family
Cyan
Tone
Muted
Best ink
White
13.68:1
Closest name
Dark Slate Gray
ΔE2000 12.6
Chroma
3.5
LCH, 0–130ish
OKLCH L
0.298
perceptual lightness
Tailwind
neutral
500 · ΔE 24.5
Web-safe
#333333
nearest of 216
Where it sits
Hue163° of 360°
Saturation8%
Lightness17%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #282f2d.

Temperature
Warm ← → Cool57% cool

Reads neutral. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red17%
Green76%
Blue7%

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

Every format

HEX#282f2d
HEX (8-digit)#282f2dff
RGBrgb(40, 47, 45)
RGBArgba(40, 47, 45, 1)
HSLhsl(163, 8%, 17%)
HSV / HSBhsv(163, 15%, 18%)
HWBhwb(163 16% 82%)
CMYKcmyk(15%, 0%, 4%, 82%)
LABlab(18.7 -3.5 0.3)
LCHlch(18.7 3.5 175.8)
OKLCHoklch(0.298 0.010 176.5)
XYZ (D65)xyz(2.37, 2.67, 2.87)
Decimal2633517
Display P3color(display-p3 0.157 0.184 0.176)
Web-safe#333333

Copy-ready code

every platformclick to select
/* CSS */
color: #282f2d;
background-color: #282f2d;
/* CSS custom property */
--brand: #282f2d;
/* Tailwind (arbitrary) */
class="text-[#282f2d] bg-[#282f2d]"
/* SCSS */
$brand: #282f2d;
/* SwiftUI */
Color(red: 0.157, green: 0.184, blue: 0.176)
/* UIKit */
UIColor(red: 0.157, green: 0.184, blue: 0.176, alpha: 1)
/* Android XML */
<color name="brand">#282F2D</color>
/* Android Compose */
Color(0xFF282F2D)
/* Flutter */
Color(0xFF282F2D)
/* Python / OpenCV (BGR) */
(45, 47, 40)
/* Python / PIL (RGB) */
(40, 47, 45)
/* Java AWT */
new Color(40, 47, 45)
/* .NET */
Color.FromArgb(255, 40, 47, 45)
/* OpenGL / Unity (0–1) */
(0.1569f, 0.1843f, 0.1765f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{40,47,45}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #282f2d 85%, white);
border-color: color-mix(in oklab, #282f2d 40%, transparent);
/* theme-aware in one line */
color: light-dark(#3B4542, #DEE3E1);
/* relative colour syntax */
--hover: hsl(from #282f2d 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: #F7F8F8;
  --brand-100: #EFF1F0;
  --brand-200: #DCE0DF;
  --brand-300: #C2CBC9;
  --brand-400: #A4B2AE;
  --brand-500: #869893;
  --brand-600: #71847F;
  --brand-700: #5E6E6A;
  --brand-800: #4B5854;
  --brand-900: #39423F;
  --brand-950: #282f2d;
  --brand: #282f2d;
  --brand-ink: #ffffff;
  --brand-surface: #F7F8F8;
  --brand-border: #D3D9D8;
  --brand-hover: #181C1B;
  --brand-pressed: #070908;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1A1E1D;
    --brand-ink: #DEE3E1;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F7F8F8',
        100: '#EFF1F0',
        200: '#DCE0DF',
        300: '#C2CBC9',
        400: '#A4B2AE',
        500: '#869893',
        600: '#71847F',
        700: '#5E6E6A',
        800: '#4B5854',
        900: '#39423F',
        950: '#282f2d',
        DEFAULT: '#282f2d',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F7F8F8,
  '100': #EFF1F0,
  '200': #DCE0DF,
  '300': #C2CBC9,
  '400': #A4B2AE,
  '500': #869893,
  '600': #71847F,
  '700': #5E6E6A,
  '800': #4B5854,
  '900': #39423F,
  '950': #282f2d,
);
$brand-base: #282f2d;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F7F8F8", "$type": "color" },
      "100": { "$value": "#EFF1F0", "$type": "color" },
      "200": { "$value": "#DCE0DF", "$type": "color" },
      "300": { "$value": "#C2CBC9", "$type": "color" },
      "400": { "$value": "#A4B2AE", "$type": "color" },
      "500": { "$value": "#869893", "$type": "color" },
      "600": { "$value": "#71847F", "$type": "color" },
      "700": { "$value": "#5E6E6A", "$type": "color" },
      "800": { "$value": "#4B5854", "$type": "color" },
      "900": { "$value": "#39423F", "$type": "color" },
      "950": { "$value": "#282f2d", "$type": "color" }
    },
    "brandInk": { "$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 #282f2d · 13.68:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 13.68:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 1.53:1
AA fail · AA large fail · AAA fail
Reading the other direction: #282f2d as text scores 13.68:1 on white and 1.53:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F1F3F3 at 12.29:1.

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
#282f2d · 13.68:1
AA on whitealready passes
#282f2d
The quick fox
#282f2d · 13.68:1
AAA on whitealready passes
#282f2d
The quick fox
#677974 · 4.56:1
AA on black+27% L
#677974
The quick fox
#899A95 · 7.12:1
AAA on black+40% L
#899A95

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #282F2D 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
#282f2d on white: 13.68:1
AA ✓ pass · AA-large · AAA
Aa
#282f2d on black: 1.53:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #282f2d as text on that neutral, and that neutral as text on #282f2d.

NeutralRatioBoth directions
White13.68:1AaAa
Slate 5013.08:1AaAa
Slate 10012.49:1AaAa
Slate 20011.10:1AaAa
Slate 3009.22:1AaAa
Slate 4005.34:1AaAa
Slate 5002.88:1AaAa
Slate 6001.81:1AaAa
Slate 7001.32:1AaAa
Slate 8001.07:1AaAa
Slate 9001.30:1AaAa
Black1.53:1AaAa
Colour vision deficiency
true color
protanopia · #2E2E2D
deuteranopia · #2D2D2D
tritanopia · #262F2E

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. #282f2d is pinned to step 950; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F7F8F8
#EFF1F0
#DCE0DF
#C2CBC9
#A4B2AE
#869893
#71847F
#5E6E6A
#4B5854
#39423F
#282f2d
Base = 950Lightest = 50 · #F7F8F8Darkest = 950 · #282f2dText step on white = 700
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 0.003 176.5);
  --brand-100: oklch(0.94 0.004 176.5);
  --brand-200: oklch(0.88 0.006 176.5);
  --brand-300: oklch(0.80 0.008 176.5);
  --brand-400: oklch(0.72 0.010 176.5);
  --brand-500: oklch(0.64 0.010 176.5);
  --brand-600: oklch(0.56 0.010 176.5);
  --brand-700: oklch(0.48 0.010 176.5);
  --brand-800: oklch(0.40 0.009 176.5);
  --brand-900: oklch(0.32 0.007 176.5);
  --brand-950: oklch(0.24 0.006 176.5);
}

Colors that work with #282f2d

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#F7F8F8
Tinted page background
Border#D3D9D8
Hairlines and dividers
Muted text#6A7C77
Captions on the surface
Accent#31262C
Second voice, not a rival
Dark variant#3B4542
Hover, pressed, headers
Light variant#F1F3F3
Selected rows, tints
Dark surface#1A1E1D
Dark-mode background
Hover#181C1B
One step down in lightness
Pressed#070908
Two steps down
Disabled#5C6C67
Chroma pulled out
Focus ring#2C3F3A
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 #282f2d

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
  • Brand accents, badges and data highlights
Use with care
  • Text on black or near-black surfaces
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • 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.

cleantechnicalfreshclinical

Cyan reads as water, air and infrastructure: cool, hygienic, engineered.

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

At high lightness it disappears into white surfaces and thin strokes vanish entirely.

Reads as
  • FormalityHigh
  • EnergyLow
  • Weight83/100
  • TemperatureNeutral
  • 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#2F282A
Analogous left#282F2A
Analogous right#282E2F
Split-complement 1#2F282E
Split-complement 2#2F2A28
Triadic 1#2D282F
Triadic 2#2F2D28
Tetradic#2A282F
On the wheel
Base+30°−30°+120°+240°+180°163°

#282f2d sits at 163°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red15.7%
Green18.4%
Blue17.6%
R · 0–255
40
0x28
G · 0–255
47
0x2f
B · 0–255
45
0x2d

CMYK percentages

Cyan14.9%
Magenta0.0%
Yellow4.3%
Key (black)81.6%

Total ink coverage is 101%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#282f2d text on a black background

contrast 1.53:1

Card sample

#282f2d text on a white background

contrast 13.68:1

Card sample

#282f2d on grey

12.49:1

#282f2d on its own surface

12.86:1

#282f2d on its dark surface

1.23:1

CSS3 live lab

Text font color

The quick brown fox

color: #282f2d;
Background color
Panel with #282f2d background
background-color: #282f2d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #282f2d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(40, 47, 45, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 47, 45, 0.45);
Border & gradient
Gradient panel
border: 3px solid #282f2d;
background: linear-gradient(135deg, #282f2d, #282C2F);
Gradient text

Gradient headline

background: linear-gradient(90deg, #282f2d, #282B2F);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #282f2d;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #282f2d;
caret-color: #282f2d;
Left rule
Pull quote or callout
border-left: 4px solid #282f2d;
Ring + tint
Selected chip
background: #F1F3F3;
box-shadow: inset 0 0 0 2px #282f2d;
Conic badge
68%
background: conic-gradient(#282f2d 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #282f2d 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(40, 47, 45, 0.5)
rgb(40 47 45 / 50%)
#282f2d80
hsl(163 8% 17% / 50%)
color-mix(in srgb, #282f2d 50%, transparent)
Alpha8-digit hexFlat on white
10%#282f2d1a#EAEAEA
20%#282f2d33#D4D5D5
40%#282f2d66#A9ACAB
60%#282f2d99#7E8281
80%#282f2dcc#535957

Gradients from #282f2d

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, #44504D, #282f2d 45%, #3B4542);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #282f2d, #1A1C1F);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #282f2d, #2F282A);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #52615D 0%, #282f2d 45%, #3B4542 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F7F8F8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #404B41 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #363D40 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #3B4542 0%, transparent 65%), #282f2d;

Monochromatic scale

Palettes built from #282f2d

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.

#282f2d in the real world

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

Industries
TechnologyTravelHealthcareMedia
Common UI roles
BackgroundsBordersBody textDividers
Print note

Converts to four-color process without much drama. Proof it anyway.

On screens

Very dark values collapse into each other on cheap panels — leave more lightness between your darkest steps than the numbers suggest.

In dark mode

Too dim on dark surfaces at 1.53:1 — lift it to #677974 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.

#282f2d, answered

What color is #282f2d?

#282f2d is a deep muted cyan, closest to Dark Slate Gray (ΔE2000 12.6). It sits at 163° on the hue wheel with 8% saturation and 17% lightness, which reads as neutral.

What is the RGB value of #282f2d?

rgb(40, 47, 45) — 40 red, 47 green and 45 blue out of 255, or 15.7% / 18.4% / 17.6% by channel.

What is #282f2d in HSL and HSV?

hsl(163, 8%, 17%) and hsv(163, 15%, 18%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #282f2d a light or a dark color?

It is a dark color. Relative luminance is 0.0267 and perceived brightness is 18%, so white text on it reaches 13.68:1.

Should I use black or white text on #282f2d?

White. It scores 13.68:1 against #282f2d, versus 1.53:1 for black — AAA at any size.

Is #282f2d accessible on a white background?

#282f2d on white scores 13.68:1, which clears AAA at every size.

What is the complementary color of #282f2d?

#2F282A sits directly opposite on the wheel. Softer options are the split-complements #2F282E and #2F2A28, which give the same contrast with far less vibration.

What colors go well with #282f2d?

For interface work: #F7F8F8 as the surface, #D3D9D8 for borders, #6A7C77 for secondary text, #31262C as an accent and #3B4542 for hover and pressed states. For a palette, the analogous pair #282F2A and #282E2F stays calm, while #2F282A is the loudest partner.

What is #282f2d in CMYK for printing?

cmyk(15%, 0%, 4%, 82%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #282f2d warm or cool?

Neutral — it scores 57 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #38302A; nudged cooler, #21262C.

Which Tailwind color is closest to #282f2d?

The neutral family — its 500 step is #737373, ΔE2000 24.5 away. That is a visible difference, so define #282f2d as a custom token rather than reaching for the built-in.

How do I use #282f2d in Tailwind CSS?

Inline it as an arbitrary value with bg-[#282f2d] or text-[#282f2d], 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 #282f2d with 50% opacity?

rgba(40, 47, 45, 0.5), or #282f2d80 in eight-digit hex. Over white that composites to #949796; over black, #141817.

Is #282f2d a web-safe color?

No. The nearest web-safe colour is #333333, ΔE2000 5.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #282f2d mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this low chroma the association is faint; it behaves more like a neutral.

What gradient works with #282f2d?

The safest is same-hue elevation: linear-gradient(135deg, #44504D, #282f2d 45%, #3B4542). For more colour, a short hue run to #1A1C1F keeps it rich without turning muddy.

Work with #282f2d in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #282f2d at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.