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blue · cool

#adacd0

a light, soft blue · cool · closest name: Light Steel Blue

Token name suggestion: Morning Harbour

RGB
173, 172, 208
HSL
242°, 28%, 75%
CMYK
17, 17, 0, 18
Luminance
0.4294

#adacd0 is a light soft blue, 242° on the wheel and 76/100 on the cool side. Put black text on it (9.59:1). As text it scores 2.19:1 on white — use #706EAD instead. Nearest name is Light Steel Blue, nearest Tailwind family is slate.

hsl(242 28% 75%)rgb(173 172 208)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #adacd0 is made of, how bright it looks, and which way it leans.

Hex
#adacd0
Hue
242°
blue
Saturation
28%
soft
Lightness
75%
light
Brightness
82%
HSV value
Perceived
69%
weighted brightness
Luminance
0.4294
WCAG relative
Temperature
Cool
76/100 cool
Color family
Blue
Tone
Soft
Best ink
Black
9.59:1
Closest name
Light Steel Blue
ΔE2000 11
Chroma
19.7
LCH, 0–130ish
OKLCH L
0.757
perceptual lightness
Tailwind
slate
500 · ΔE 22.2
Web-safe
#9999CC
nearest of 216
Where it sits
Hue242° of 360°
Saturation28%
Lightness75%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #adacd0.

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%
Green69%
Blue11%

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

Every format

HEX#adacd0
HEX (8-digit)#adacd0ff
RGBrgb(173, 172, 208)
RGBArgba(173, 172, 208, 1)
HSLhsl(242, 28%, 75%)
HSV / HSBhsv(242, 17%, 82%)
HWBhwb(242 67% 18%)
CMYKcmyk(17%, 17%, 0%, 18%)
LABlab(71.5 7.7 -18.1)
LCHlch(71.5 19.7 293.1)
OKLCHoklch(0.757 0.051 286.4)
XYZ (D65)xyz(43.37, 42.94, 65.67)
Decimal11381968
Display P3color(display-p3 0.678 0.675 0.816)
Web-safe#9999CC

Copy-ready code

every platformclick to select
/* CSS */
color: #adacd0;
background-color: #adacd0;
/* CSS custom property */
--brand: #adacd0;
/* Tailwind (arbitrary) */
class="text-[#adacd0] bg-[#adacd0]"
/* SCSS */
$brand: #adacd0;
/* SwiftUI */
Color(red: 0.678, green: 0.675, blue: 0.816)
/* UIKit */
UIColor(red: 0.678, green: 0.675, blue: 0.816, alpha: 1)
/* Android XML */
<color name="brand">#ADACD0</color>
/* Android Compose */
Color(0xFFADACD0)
/* Flutter */
Color(0xFFADACD0)
/* Python / OpenCV (BGR) */
(208, 172, 173)
/* Python / PIL (RGB) */
(173, 172, 208)
/* Java AWT */
new Color(173, 172, 208)
/* .NET */
Color.FromArgb(255, 173, 172, 208)
/* OpenGL / Unity (0–1) */
(0.6784f, 0.6745f, 0.8157f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{173,172,208}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #adacd0 85%, white);
border-color: color-mix(in oklab, #adacd0 40%, transparent);
/* theme-aware in one line */
color: light-dark(#2F2E51, #D8D8E9);
/* relative colour syntax */
--hover: hsl(from #adacd0 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: #F6F6F9;
  --brand-100: #EDECF3;
  --brand-200: #D6D6E6;
  --brand-300: #adacd0;
  --brand-400: #9594C2;
  --brand-500: #7170AE;
  --brand-600: #5A589C;
  --brand-700: #4B4A82;
  --brand-800: #3C3B68;
  --brand-900: #2E2E4D;
  --brand-950: #1D1D30;
  --brand: #adacd0;
  --brand-ink: #000000;
  --brand-surface: #F5F5F9;
  --brand-border: #CCCBE2;
  --brand-hover: #9695C3;
  --brand-pressed: #807EB6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #151424;
    --brand-ink: #D8D8E9;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6F6F9',
        100: '#EDECF3',
        200: '#D6D6E6',
        300: '#adacd0',
        400: '#9594C2',
        500: '#7170AE',
        600: '#5A589C',
        700: '#4B4A82',
        800: '#3C3B68',
        900: '#2E2E4D',
        950: '#1D1D30',
        DEFAULT: '#adacd0',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6F6F9,
  '100': #EDECF3,
  '200': #D6D6E6,
  '300': #adacd0,
  '400': #9594C2,
  '500': #7170AE,
  '600': #5A589C,
  '700': #4B4A82,
  '800': #3C3B68,
  '900': #2E2E4D,
  '950': #1D1D30,
);
$brand-base: #adacd0;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6F6F9", "$type": "color" },
      "100": { "$value": "#EDECF3", "$type": "color" },
      "200": { "$value": "#D6D6E6", "$type": "color" },
      "300": { "$value": "#adacd0", "$type": "color" },
      "400": { "$value": "#9594C2", "$type": "color" },
      "500": { "$value": "#7170AE", "$type": "color" },
      "600": { "$value": "#5A589C", "$type": "color" },
      "700": { "$value": "#4B4A82", "$type": "color" },
      "800": { "$value": "#3C3B68", "$type": "color" },
      "900": { "$value": "#2E2E4D", "$type": "color" },
      "950": { "$value": "#1D1D30", "$type": "color" }
    },
    "brandInk": { "$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 #adacd0 · 9.59:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.19:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.59:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #adacd0 as text scores 2.19:1 on white and 9.59:1 on black.
Best tinted ink on it, if plain black or white feels flat: #2F2E51 at 5.88:1.

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
#706EAD · 4.64:1
AA on white−19% L
#706EAD
The quick fox
#545291 · 7.02:1
AAA on white−30% L
#545291
The quick fox
#adacd0 · 9.59:1
AA on blackalready passes
#adacd0
The quick fox
#adacd0 · 9.59:1
AAA on blackalready passes
#adacd0

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #908FBF 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
#adacd0 on white: 2.19:1
AA ✗ fail · AA-large · AAA
Aa
#adacd0 on black: 9.59:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #adacd0 as text on that neutral, and that neutral as text on #adacd0.

NeutralRatioBoth directions
White2.19:1AaAa
Slate 502.09:1AaAa
Slate 1002.00:1AaAa
Slate 2001.78:1AaAa
Slate 3001.48:1AaAa
Slate 4001.17:1AaAa
Slate 5002.17:1AaAa
Slate 6003.46:1AaAa
Slate 7004.73:1AaAa
Slate 8006.68:1AaAa
Slate 9008.15:1AaAa
Black9.59:1AaAa
Colour vision deficiency
true color
protanopia · #A3B0D2
deuteranopia · #A3AECF
tritanopia · #A6B2B8

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. #adacd0 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.

#F6F6F9
#EDECF3
#D6D6E6
#adacd0
#9594C2
#7170AE
#5A589C
#4B4A82
#3C3B68
#2E2E4D
#1D1D30
Base = 300Lightest = 50 · #F6F6F9Darkest = 950 · #1D1D30Text 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 0.013 286.4);
  --brand-100: oklch(0.94 0.021 286.4);
  --brand-200: oklch(0.88 0.031 286.4);
  --brand-300: oklch(0.80 0.040 286.4);
  --brand-400: oklch(0.72 0.047 286.4);
  --brand-500: oklch(0.64 0.051 286.4);
  --brand-600: oklch(0.56 0.051 286.4);
  --brand-700: oklch(0.48 0.048 286.4);
  --brand-800: oklch(0.40 0.043 286.4);
  --brand-900: oklch(0.32 0.036 286.4);
  --brand-950: oklch(0.24 0.028 286.4);
}

Colors that work with #adacd0

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#F5F5F9
Tinted page background
Border#CCCBE2
Hairlines and dividers
Muted text#555393
Captions on the surface
Accent#877745
Second voice, not a rival
Dark variant#2F2E51
Hover, pressed, headers
Light variant#EFEFF6
Selected rows, tints
Dark surface#151424
Dark-mode background
Hover#9695C3
One step down in lightness
Pressed#807EB6
Two steps down
Disabled#F3F3F7
Chroma pulled out
Focus ring#B5B4DD
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 #adacd0

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

Works well for
  • Text and icons on dark surfaces
  • Charts, tags and secondary 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 #2F2E51
Safe as a 1px border on white
No — use #908FBF

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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. 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
  • EnergyMedium
  • Weight26/100
  • 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#CFD0AC
Analogous left#ACBDD0
Analogous right#BFACD0
Split-complement 1#D0BFAC
Split-complement 2#BDD0AC
Triadic 1#D0ADAC
Triadic 2#ACD0AD
Tetradic#D0ACBD
On the wheel
Base+30°−30°+120°+240°+180°242°

#adacd0 sits at 242°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.8%
Green67.5%
Blue81.6%
R · 0–255
173
0xad
G · 0–255
172
0xac
B · 0–255
208
0xd0

CMYK percentages

Cyan16.8%
Magenta17.3%
Yellow0.0%
Key (black)18.4%

Total ink coverage is 53%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#adacd0 text on a black background

contrast 9.59:1

Card sample

#adacd0 text on a white background

contrast 2.19:1

Card sample

#adacd0 on grey

2.00:1

#adacd0 on its own surface

2.01:1

#adacd0 on its dark surface

8.28:1

CSS3 live lab

Text font color

The quick brown fox

color: #adacd0;
Background color
Panel with #adacd0 background
background-color: #adacd0;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #adacd0;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(173, 172, 208, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(173, 172, 208, 0.45);
Border & gradient
Gradient panel
border: 3px solid #adacd0;
background: linear-gradient(135deg, #adacd0, #C5ACD0);
Gradient text

Gradient headline

background: linear-gradient(90deg, #adacd0, #CEACD0);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #adacd0;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #adacd0;
caret-color: #adacd0;
Left rule
Pull quote or callout
border-left: 4px solid #adacd0;
Ring + tint
Selected chip
background: #EFEFF6;
box-shadow: inset 0 0 0 2px #adacd0;
Conic badge
68%
background: conic-gradient(#adacd0 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #adacd0 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(173, 172, 208, 0.5)
rgb(173 172 208 / 50%)
#adacd080
hsl(242 28% 75% / 50%)
color-mix(in srgb, #adacd0 50%, transparent)
Alpha8-digit hexFlat on white
10%#adacd01a#F7F7FA
20%#adacd033#EFEEF6
40%#adacd066#DEDEEC
60%#adacd099#CECDE3
80%#adacd0cc#BDBDD9

Gradients from #adacd0

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, #D4D3E6, #adacd0 45%, #2F2E51);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #adacd0, #BB98C5);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #adacd0, #CFD0AC);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E7E7F1 0%, #adacd0 45%, #2F2E51 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5F5F9, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #CDD9E2 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #D0C0DB 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #2F2E51 0%, transparent 65%), #adacd0;

Monochromatic scale

Palettes built from #adacd0

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.

#adacd0 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
SurfacesBadgesHighlightsEmpty states
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 9.59:1.

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.

#adacd0, answered

What color is #adacd0?

#adacd0 is a light soft blue, closest to Light Steel Blue (ΔE2000 11). It sits at 242° on the hue wheel with 28% saturation and 75% lightness, which reads as cool.

What is the RGB value of #adacd0?

rgb(173, 172, 208) — 173 red, 172 green and 208 blue out of 255, or 67.8% / 67.5% / 81.6% by channel.

What is #adacd0 in HSL and HSV?

hsl(242, 28%, 75%) and hsv(242, 17%, 82%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #adacd0 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4294 and perceived brightness is 69%, so black text on it reaches 9.59:1.

Should I use black or white text on #adacd0?

Black. It scores 9.59:1 against #adacd0, versus 2.19:1 for white — AAA at any size.

Is #adacd0 accessible on a white background?

#adacd0 on white scores 2.19:1, which fails WCAG AA at every size. Darken it to #706EAD to reach 4.5:1, or #545291 for 7:1.

What is the complementary color of #adacd0?

#CFD0AC sits directly opposite on the wheel. Softer options are the split-complements #D0BFAC and #BDD0AC, which give the same contrast with far less vibration.

What colors go well with #adacd0?

For interface work: #F5F5F9 as the surface, #CCCBE2 for borders, #555393 for secondary text, #877745 as an accent and #2F2E51 for hover and pressed states. For a palette, the analogous pair #ACBDD0 and #BFACD0 stays calm, while #CFD0AC is the loudest partner.

What is #adacd0 in CMYK for printing?

cmyk(17%, 17%, 0%, 18%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #adacd0 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 #BAACD0; nudged cooler, #ABB8D1.

Which Tailwind color is closest to #adacd0?

The slate family — its 500 step is #64748b, ΔE2000 22.2 away. That is a visible difference, so define #adacd0 as a custom token rather than reaching for the built-in.

How do I use #adacd0 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#adacd0] or text-[#adacd0], 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 #adacd0 with 50% opacity?

rgba(173, 172, 208, 0.5), or #adacd080 in eight-digit hex. Over white that composites to #D6D6E8; over black, #575668.

Is #adacd0 a web-safe color?

No. The nearest web-safe colour is #9999CC, ΔE2000 6.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #adacd0 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 moderate chroma the association is present but not shouted.

What gradient works with #adacd0?

The safest is same-hue elevation: linear-gradient(135deg, #D4D3E6, #adacd0 45%, #2F2E51). For more colour, a short hue run to #BB98C5 keeps it rich without turning muddy.

Work with #adacd0 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #adacd0 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.