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blue · cool

#aad3eb

a light, vivid blue · cool · closest name: Light Blue

Token name suggestion: Meadow Sapphire

RGB
170, 211, 235
HSL
202°, 62%, 79%
CMYK
28, 10, 0, 8
Luminance
0.6113

#aad3eb is a light vivid blue, 202° on the wheel and 97/100 on the cool side. Put black text on it (13.23:1). As text it scores 1.59:1 on white — use #287BAB instead. Nearest name is Light Blue, nearest Tailwind family is cyan.

hsl(202 62% 79%)rgb(170 211 235)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #aad3eb is made of, how bright it looks, and which way it leans.

Hex
#aad3eb
Hue
202°
blue
Saturation
62%
vivid
Lightness
79%
light
Brightness
92%
HSV value
Perceived
79%
weighted brightness
Luminance
0.6113
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
13.23:1
Closest name
Light Blue
ΔE2000 4.3
Chroma
18.1
LCH, 0–130ish
OKLCH L
0.846
perceptual lightness
Tailwind
cyan
500 · ΔE 15.2
Web-safe
#99CCFF
nearest of 216
Where it sits
Hue202° of 360°
Saturation62%
Lightness79%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #aad3eb.

Temperature
Warm ← → Cool97% 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
Red14%
Green76%
Blue10%

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

Every format

HEX#aad3eb
HEX (8-digit)#aad3ebff
RGBrgb(170, 211, 235)
RGBArgba(170, 211, 235, 1)
HSLhsl(202, 62%, 79%)
HSV / HSBhsv(202, 28%, 92%)
HWBhwb(202 67% 8%)
CMYKcmyk(28%, 10%, 0%, 8%)
LABlab(82.5 -8.0 -16.2)
LCHlch(82.5 18.1 243.6)
OKLCHoklch(0.846 0.055 234.0)
XYZ (D65)xyz(54.86, 61.13, 87.49)
Decimal11195371
Display P3color(display-p3 0.667 0.827 0.922)
Web-safe#99CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #aad3eb;
background-color: #aad3eb;
/* CSS custom property */
--brand: #aad3eb;
/* Tailwind (arbitrary) */
class="text-[#aad3eb] bg-[#aad3eb]"
/* SCSS */
$brand: #aad3eb;
/* SwiftUI */
Color(red: 0.667, green: 0.827, blue: 0.922)
/* UIKit */
UIColor(red: 0.667, green: 0.827, blue: 0.922, alpha: 1)
/* Android XML */
<color name="brand">#AAD3EB</color>
/* Android Compose */
Color(0xFFAAD3EB)
/* Flutter */
Color(0xFFAAD3EB)
/* Python / OpenCV (BGR) */
(235, 211, 170)
/* Python / PIL (RGB) */
(170, 211, 235)
/* Java AWT */
new Color(170, 211, 235)
/* .NET */
Color.FromArgb(255, 170, 211, 235)
/* OpenGL / Unity (0–1) */
(0.6667f, 0.8275f, 0.9216f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{170,211,235}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #aad3eb 85%, white);
border-color: color-mix(in oklab, #aad3eb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#184A67, #D3E4EE);
/* relative colour syntax */
--hover: hsl(from #aad3eb 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: #F4F8FB;
  --brand-100: #E8F2F7;
  --brand-200: #CCE3F0;
  --brand-300: #aad3eb;
  --brand-400: #77B8DF;
  --brand-500: #49A1D4;
  --brand-600: #2F8EC6;
  --brand-700: #2776A5;
  --brand-800: #1F5F84;
  --brand-900: #1A4660;
  --brand-950: #102C3C;
  --brand: #aad3eb;
  --brand-ink: #000000;
  --brand-surface: #F4F8FA;
  --brand-border: #C0DCED;
  --brand-hover: #8DC4E4;
  --brand-pressed: #70B5DD;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141E24;
    --brand-ink: #D3E4EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4F8FB',
        100: '#E8F2F7',
        200: '#CCE3F0',
        300: '#aad3eb',
        400: '#77B8DF',
        500: '#49A1D4',
        600: '#2F8EC6',
        700: '#2776A5',
        800: '#1F5F84',
        900: '#1A4660',
        950: '#102C3C',
        DEFAULT: '#aad3eb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4F8FB,
  '100': #E8F2F7,
  '200': #CCE3F0,
  '300': #aad3eb,
  '400': #77B8DF,
  '500': #49A1D4,
  '600': #2F8EC6,
  '700': #2776A5,
  '800': #1F5F84,
  '900': #1A4660,
  '950': #102C3C,
);
$brand-base: #aad3eb;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4F8FB", "$type": "color" },
      "100": { "$value": "#E8F2F7", "$type": "color" },
      "200": { "$value": "#CCE3F0", "$type": "color" },
      "300": { "$value": "#aad3eb", "$type": "color" },
      "400": { "$value": "#77B8DF", "$type": "color" },
      "500": { "$value": "#49A1D4", "$type": "color" },
      "600": { "$value": "#2F8EC6", "$type": "color" },
      "700": { "$value": "#2776A5", "$type": "color" },
      "800": { "$value": "#1F5F84", "$type": "color" },
      "900": { "$value": "#1A4660", "$type": "color" },
      "950": { "$value": "#102C3C", "$type": "color" }
    },
    "brandInk": { "$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 #aad3eb · 13.23:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.59:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.23:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #aad3eb as text scores 1.59:1 on white and 13.23:1 on black.
Best tinted ink on it, if plain black or white feels flat: #184A67 at 5.97:1.

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
#287BAB · 4.65:1
AA on white−38% L
#287BAB
The quick fox
#1F5D82 · 7.13:1
AAA on white−48% L
#1F5D82
The quick fox
#aad3eb · 13.23:1
AA on blackalready passes
#aad3eb
The quick fox
#aad3eb · 13.23:1
AAA on blackalready passes
#aad3eb

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #439DD3 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
#aad3eb on white: 1.59:1
AA ✗ fail · AA-large · AAA
Aa
#aad3eb on black: 13.23:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #aad3eb as text on that neutral, and that neutral as text on #aad3eb.

NeutralRatioBoth directions
White1.59:1AaAa
Slate 501.52:1AaAa
Slate 1001.45:1AaAa
Slate 2001.29:1AaAa
Slate 3001.07:1AaAa
Slate 4001.61:1AaAa
Slate 5003.00:1AaAa
Slate 6004.77:1AaAa
Slate 7006.52:1AaAa
Slate 8009.21:1AaAa
Slate 90011.24:1AaAa
Black13.23:1AaAa
Colour vision deficiency
true color
protanopia · #C8D1EC
deuteranopia · #BFCAEB
tritanopia · #96D9DB

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. #aad3eb 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.

#F4F8FB
#E8F2F7
#CCE3F0
#aad3eb
#77B8DF
#49A1D4
#2F8EC6
#2776A5
#1F5F84
#1A4660
#102C3C
Base = 300Lightest = 50 · #F4F8FBDarkest = 950 · #102C3CText 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 0.014 234.0);
  --brand-100: oklch(0.94 0.022 234.0);
  --brand-200: oklch(0.88 0.033 234.0);
  --brand-300: oklch(0.80 0.043 234.0);
  --brand-400: oklch(0.72 0.050 234.0);
  --brand-500: oklch(0.64 0.055 234.0);
  --brand-600: oklch(0.56 0.055 234.0);
  --brand-700: oklch(0.48 0.051 234.0);
  --brand-800: oklch(0.40 0.046 234.0);
  --brand-900: oklch(0.32 0.038 234.0);
  --brand-950: oklch(0.24 0.030 234.0);
}

Colors that work with #aad3eb

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#F4F8FA
Tinted page background
Border#C0DCED
Hairlines and dividers
Muted text#4B7D9B
Captions on the surface
Accent#A93323
Second voice, not a rival
Dark variant#184A67
Hover, pressed, headers
Light variant#EAF4FA
Selected rows, tints
Dark surface#141E24
Dark-mode background
Hover#8DC4E4
One step down in lightness
Pressed#70B5DD
Two steps down
Disabled#F3F5F7
Chroma pulled out
Focus ring#B6DDF3
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 #aad3eb

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

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • 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 #184A67
Safe as a 1px border on white
No — use #439DD3

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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. 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-high
  • Weight21/100
  • 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#EBC2AA
Analogous left#AAEBE3
Analogous right#AAB2EB
Split-complement 1#EBAAB2
Split-complement 2#EBE3AA
Triadic 1#EBAAD3
Triadic 2#D3EBAA
Tetradic#E3AAEB
On the wheel
Base+30°−30°+120°+240°+180°202°

#aad3eb sits at 202°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red66.7%
Green82.7%
Blue92.2%
R · 0–255
170
0xaa
G · 0–255
211
0xd3
B · 0–255
235
0xeb

CMYK percentages

Cyan27.7%
Magenta10.2%
Yellow0.0%
Key (black)7.8%

Total ink coverage is 46%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#aad3eb text on a black background

contrast 13.23:1

Card sample

#aad3eb text on a white background

contrast 1.59:1

Card sample

#aad3eb on grey

1.45:1

#aad3eb on its own surface

1.49:1

#aad3eb on its dark surface

10.66:1

CSS3 live lab

Text font color

The quick brown fox

color: #aad3eb;
Background color
Panel with #aad3eb background
background-color: #aad3eb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #aad3eb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(170, 211, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(170, 211, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #aad3eb;
background: linear-gradient(135deg, #aad3eb, #ACAAEB);
Gradient text

Gradient headline

background: linear-gradient(90deg, #aad3eb, #BDAAEB);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #aad3eb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #aad3eb;
caret-color: #aad3eb;
Left rule
Pull quote or callout
border-left: 4px solid #aad3eb;
Ring + tint
Selected chip
background: #EAF4FA;
box-shadow: inset 0 0 0 2px #aad3eb;
Conic badge
68%
background: conic-gradient(#aad3eb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #aad3eb 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(170, 211, 235, 0.5)
rgb(170 211 235 / 50%)
#aad3eb80
hsl(202 62% 79% / 50%)
color-mix(in srgb, #aad3eb 50%, transparent)
Alpha8-digit hexFlat on white
10%#aad3eb1a#F7FBFD
20%#aad3eb33#EEF6FB
40%#aad3eb66#DDEDF7
60%#aad3eb99#CCE5F3
80%#aad3ebcc#BBDCEF

Gradients from #aad3eb

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, #DBEDF7, #aad3eb 45%, #184A67);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #aad3eb, #9B91E5);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #aad3eb, #EBC2AA);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F3F9FC 0%, #aad3eb 45%, #184A67 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F8FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #D3F5EE 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C3C5F1 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #184A67 0%, transparent 65%), #aad3eb;

Monochromatic scale

Palettes built from #aad3eb

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.

#aad3eb 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 13.23:1.

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.

#aad3eb, answered

What color is #aad3eb?

#aad3eb is a light vivid blue, closest to Light Blue (ΔE2000 4.3). It sits at 202° on the hue wheel with 62% saturation and 79% lightness, which reads as cool.

What is the RGB value of #aad3eb?

rgb(170, 211, 235) — 170 red, 211 green and 235 blue out of 255, or 66.7% / 82.7% / 92.2% by channel.

What is #aad3eb in HSL and HSV?

hsl(202, 62%, 79%) and hsv(202, 28%, 92%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #aad3eb a light or a dark color?

It is a light color. Relative luminance is 0.6113 and perceived brightness is 79%, so black text on it reaches 13.23:1.

Should I use black or white text on #aad3eb?

Black. It scores 13.23:1 against #aad3eb, versus 1.59:1 for white — AAA at any size.

Is #aad3eb accessible on a white background?

#aad3eb on white scores 1.59:1, which fails WCAG AA at every size. Darken it to #287BAB to reach 4.5:1, or #1F5D82 for 7:1.

What is the complementary color of #aad3eb?

#EBC2AA sits directly opposite on the wheel. Softer options are the split-complements #EBAAB2 and #EBE3AA, which give the same contrast with far less vibration.

What colors go well with #aad3eb?

For interface work: #F4F8FA as the surface, #C0DCED for borders, #4B7D9B for secondary text, #A93323 as an accent and #184A67 for hover and pressed states. For a palette, the analogous pair #AAEBE3 and #AAB2EB stays calm, while #EBC2AA is the loudest partner.

What is #aad3eb in CMYK for printing?

cmyk(28%, 10%, 0%, 8%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #aad3eb warm or cool?

Cool — it scores 97 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #AAEBEB; nudged cooler, #A9CBEC.

Which Tailwind color is closest to #aad3eb?

The cyan family — its 500 step is #06b6d4, ΔE2000 15.2 away. That is a visible difference, so define #aad3eb as a custom token rather than reaching for the built-in.

How do I use #aad3eb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#aad3eb] or text-[#aad3eb], 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 #aad3eb with 50% opacity?

rgba(170, 211, 235, 0.5), or #aad3eb80 in eight-digit hex. Over white that composites to #D5E9F5; over black, #556A76.

Is #aad3eb a web-safe color?

No. The nearest web-safe colour is #99CCFF, ΔE2000 7.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #aad3eb 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 chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #aad3eb?

The safest is same-hue elevation: linear-gradient(135deg, #DBEDF7, #aad3eb 45%, #184A67). For more colour, a short hue run to #9B91E5 keeps it rich without turning muddy.

Work with #aad3eb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #aad3eb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.