Skip to content
blue · cool

#aadbfd

a light, electric blue · cool · closest name: Light Sky Blue

Token name suggestion: Linen Sapphire

RGB
170, 219, 253
HSL
205°, 95%, 83%
CMYK
33, 13, 0, 1
Luminance
0.6630

#aadbfd is a light electric blue, 205° on the wheel and 98/100 on the cool side. Put black text on it (14.26:1). As text it scores 1.47:1 on white — use #057ACC instead. Nearest name is Light Sky Blue, nearest Tailwind family is cyan.

hsl(205 95% 83%)rgb(170 219 253)Base step 200AAA inkCool

At a glance

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

Hex
#aadbfd
Hue
205°
blue
Saturation
95%
electric
Lightness
83%
light
Brightness
99%
HSV value
Perceived
82%
weighted brightness
Luminance
0.6630
WCAG relative
Temperature
Cool
98/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
14.26:1
Closest name
Light Sky Blue
ΔE2000 5
Chroma
23.1
LCH, 0–130ish
OKLCH L
0.869
perceptual lightness
Tailwind
cyan
500 · ΔE 16.3
Web-safe
#99CCFF
nearest of 216
Where it sits
Hue205° of 360°
Saturation95%
Lightness83%
Saturation × lightness field

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

Temperature
Warm ← → Cool98% 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
Red13%
Green76%
Blue11%

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

Every format

HEX#aadbfd
HEX (8-digit)#aadbfdff
RGBrgb(170, 219, 253)
RGBArgba(170, 219, 253, 1)
HSLhsl(205, 95%, 83%)
HSV / HSBhsv(205, 33%, 99%)
HWBhwb(205 67% 1%)
CMYKcmyk(33%, 13%, 0%, 1%)
LABlab(85.2 -7.9 -21.7)
LCHlch(85.2 23.1 249.9)
OKLCHoklch(0.869 0.070 238.9)
XYZ (D65)xyz(59.63, 66.30, 102.56)
Decimal11197437
Display P3color(display-p3 0.667 0.859 0.992)
Web-safe#99CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #aadbfd;
background-color: #aadbfd;
/* CSS custom property */
--brand: #aadbfd;
/* Tailwind (arbitrary) */
class="text-[#aadbfd] bg-[#aadbfd]"
/* SCSS */
$brand: #aadbfd;
/* SwiftUI */
Color(red: 0.667, green: 0.859, blue: 0.992)
/* UIKit */
UIColor(red: 0.667, green: 0.859, blue: 0.992, alpha: 1)
/* Android XML */
<color name="brand">#AADBFD</color>
/* Android Compose */
Color(0xFFAADBFD)
/* Flutter */
Color(0xFFAADBFD)
/* Python / OpenCV (BGR) */
(253, 219, 170)
/* Python / PIL (RGB) */
(170, 219, 253)
/* Java AWT */
new Color(170, 219, 253)
/* .NET */
Color.FromArgb(255, 170, 219, 253)
/* OpenGL / Unity (0–1) */
(0.6667f, 0.8588f, 0.9922f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{170,219,253}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #aadbfd 85%, white);
border-color: color-mix(in oklab, #aadbfd 40%, transparent);
/* theme-aware in one line */
color: light-dark(#034B7D, #D3E3EE);
/* relative colour syntax */
--hover: hsl(from #aadbfd 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: #F1F8FD;
  --brand-100: #E4F2FC;
  --brand-200: #aadbfd;
  --brand-300: #91D1FC;
  --brand-400: #5BB9FB;
  --brand-500: #24A2FA;
  --brand-600: #068FEF;
  --brand-700: #0578C7;
  --brand-800: #04609F;
  --brand-900: #074773;
  --brand-950: #052C48;
  --brand: #aadbfd;
  --brand-ink: #000000;
  --brand-surface: #F4F8FA;
  --brand-border: #C0DAED;
  --brand-hover: #87CCFC;
  --brand-pressed: #64BDFB;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141E24;
    --brand-ink: #D3E3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1F8FD',
        100: '#E4F2FC',
        200: '#aadbfd',
        300: '#91D1FC',
        400: '#5BB9FB',
        500: '#24A2FA',
        600: '#068FEF',
        700: '#0578C7',
        800: '#04609F',
        900: '#074773',
        950: '#052C48',
        DEFAULT: '#aadbfd',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1F8FD,
  '100': #E4F2FC,
  '200': #aadbfd,
  '300': #91D1FC,
  '400': #5BB9FB,
  '500': #24A2FA,
  '600': #068FEF,
  '700': #0578C7,
  '800': #04609F,
  '900': #074773,
  '950': #052C48,
);
$brand-base: #aadbfd;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1F8FD", "$type": "color" },
      "100": { "$value": "#E4F2FC", "$type": "color" },
      "200": { "$value": "#aadbfd", "$type": "color" },
      "300": { "$value": "#91D1FC", "$type": "color" },
      "400": { "$value": "#5BB9FB", "$type": "color" },
      "500": { "$value": "#24A2FA", "$type": "color" },
      "600": { "$value": "#068FEF", "$type": "color" },
      "700": { "$value": "#0578C7", "$type": "color" },
      "800": { "$value": "#04609F", "$type": "color" },
      "900": { "$value": "#074773", "$type": "color" },
      "950": { "$value": "#052C48", "$type": "color" }
    },
    "brandInk": { "$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 #aadbfd · 14.26:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.47:1
AA fail · AA large fail · AAA fail
Aa
Black text · 14.26:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #aadbfd as text scores 1.47:1 on white and 14.26:1 on black.
Best tinted ink on it, if plain black or white feels flat: #034B7D at 6.18:1.

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
#057ACC · 4.50:1
AA on white−42% L
#057ACC
The quick fox
#045995 · 7.32:1
AAA on white−53% L
#045995
The quick fox
#aadbfd · 14.26:1
AA on blackalready passes
#aadbfd
The quick fox
#aadbfd · 14.26:1
AAA on blackalready passes
#aadbfd

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #0F99F9 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
#aadbfd on white: 1.47:1
AA ✗ fail · AA-large · AAA
Aa
#aadbfd on black: 14.26:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

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

NeutralRatioBoth directions
White1.47:1AaAa
Slate 501.41:1AaAa
Slate 1001.34:1AaAa
Slate 2001.19:1AaAa
Slate 3001.01:1AaAa
Slate 4001.74:1AaAa
Slate 5003.23:1AaAa
Slate 6005.15:1AaAa
Slate 7007.03:1AaAa
Slate 8009.93:1AaAa
Slate 90012.12:1AaAa
Black14.26:1AaAa
Colour vision deficiency
true color
protanopia · #CCDAFF
deuteranopia · #C1D1FC
tritanopia · #8FE4E6

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. #aadbfd is pinned to step 200; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1F8FD
#E4F2FC
#aadbfd
#91D1FC
#5BB9FB
#24A2FA
#068FEF
#0578C7
#04609F
#074773
#052C48
Base = 200Lightest = 50 · #F1F8FDDarkest = 950 · #052C48Text 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 0.017 238.9);
  --brand-100: oklch(0.94 0.028 238.9);
  --brand-200: oklch(0.88 0.042 238.9);
  --brand-300: oklch(0.80 0.054 238.9);
  --brand-400: oklch(0.72 0.064 238.9);
  --brand-500: oklch(0.64 0.070 238.9);
  --brand-600: oklch(0.56 0.070 238.9);
  --brand-700: oklch(0.48 0.065 238.9);
  --brand-800: oklch(0.40 0.058 238.9);
  --brand-900: oklch(0.32 0.049 238.9);
  --brand-950: oklch(0.24 0.038 238.9);
}

Colors that work with #aadbfd

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#C0DAED
Hairlines and dividers
Muted text#4B7A9B
Captions on the surface
Accent#CC2100
Second voice, not a rival
Dark variant#034B7D
Hover, pressed, headers
Light variant#E6F4FE
Selected rows, tints
Dark surface#141E24
Dark-mode background
Hover#87CCFC
One step down in lightness
Pressed#64BDFB
Two steps down
Disabled#F3F5F7
Chroma pulled out
Focus ring#BCE4FF
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 #aadbfd

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 #034B7D
Safe as a 1px border on white
No — use #0F99F9

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.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. 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
  • FormalityLow
  • EnergyHigh
  • Weight17/100
  • 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#FDCCAA
Analogous left#AAFDF6
Analogous right#AAB1FD
Split-complement 1#FDAAB1
Split-complement 2#FDF6AA
Triadic 1#FDAADB
Triadic 2#DBFDAA
Tetradic#F6AAFD
On the wheel
Base+30°−30°+120°+240°+180°205°

#aadbfd sits at 205°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red66.7%
Green85.9%
Blue99.2%
R · 0–255
170
0xaa
G · 0–255
219
0xdb
B · 0–255
253
0xfd

CMYK percentages

Cyan32.8%
Magenta13.4%
Yellow0.0%
Key (black)0.8%

Total ink coverage is 47%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#aadbfd text on a black background

contrast 14.26:1

Card sample

#aadbfd text on a white background

contrast 1.47:1

Card sample

#aadbfd on grey

1.34:1

#aadbfd on its own surface

1.38:1

#aadbfd on its dark surface

11.49:1

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(170, 219, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(170, 219, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #aadbfd;
background: linear-gradient(135deg, #aadbfd, #B0AAFD);
Gradient text

Gradient headline

background: linear-gradient(90deg, #aadbfd, #C5AAFD);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #aadbfd;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #aadbfd;
caret-color: #aadbfd;
Left rule
Pull quote or callout
border-left: 4px solid #aadbfd;
Ring + tint
Selected chip
background: #E6F4FE;
box-shadow: inset 0 0 0 2px #aadbfd;
Conic badge
68%
background: conic-gradient(#aadbfd 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #aadbfd 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, 219, 253, 0.5)
rgb(170 219 253 / 50%)
#aadbfd80
hsl(205 95% 83% / 50%)
color-mix(in srgb, #aadbfd 50%, transparent)
Alpha8-digit hexFlat on white
10%#aadbfd1a#F7FBFF
20%#aadbfd33#EEF8FF
40%#aadbfd66#DDF1FE
60%#aadbfd99#CCE9FE
80%#aadbfdcc#BBE2FD

Gradients from #aadbfd

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, #E6F4FE, #aadbfd 45%, #034B7D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #aadbfd, #9E8CFC);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #aadbfd, #FDCCAA);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F0F9FF 0%, #aadbfd 45%, #034B7D 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%, #DCFEF8 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #C8C8FE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #034B7D 0%, transparent 65%), #aadbfd;

Monochromatic scale

Palettes built from #aadbfd

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.

#aadbfd 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

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

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 14.26:1.

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.

#aadbfd, answered

What color is #aadbfd?

#aadbfd is a light electric blue, closest to Light Sky Blue (ΔE2000 5). It sits at 205° on the hue wheel with 95% saturation and 83% lightness, which reads as cool.

What is the RGB value of #aadbfd?

rgb(170, 219, 253) — 170 red, 219 green and 253 blue out of 255, or 66.7% / 85.9% / 99.2% by channel.

What is #aadbfd in HSL and HSV?

hsl(205, 95%, 83%) and hsv(205, 33%, 99%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #aadbfd a light or a dark color?

It is a light color. Relative luminance is 0.6630 and perceived brightness is 82%, so black text on it reaches 14.26:1.

Should I use black or white text on #aadbfd?

Black. It scores 14.26:1 against #aadbfd, versus 1.47:1 for white — AAA at any size.

Is #aadbfd accessible on a white background?

#aadbfd on white scores 1.47:1, which fails WCAG AA at every size. Darken it to #057ACC to reach 4.5:1, or #045995 for 7:1.

What is the complementary color of #aadbfd?

#FDCCAA sits directly opposite on the wheel. Softer options are the split-complements #FDAAB1 and #FDF6AA, which give the same contrast with far less vibration.

What colors go well with #aadbfd?

For interface work: #F4F8FA as the surface, #C0DAED for borders, #4B7A9B for secondary text, #CC2100 as an accent and #034B7D for hover and pressed states. For a palette, the analogous pair #AAFDF6 and #AAB1FD stays calm, while #FDCCAA is the loudest partner.

What is #aadbfd in CMYK for printing?

cmyk(33%, 13%, 0%, 1%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #aadbfd warm or cool?

Cool — it scores 98 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #AAF9FD; nudged cooler, #90C7FE.

Which Tailwind color is closest to #aadbfd?

The cyan family — its 500 step is #06b6d4, ΔE2000 16.3 away. That is a visible difference, so define #aadbfd as a custom token rather than reaching for the built-in.

How do I use #aadbfd in Tailwind CSS?

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

rgba(170, 219, 253, 0.5), or #aadbfd80 in eight-digit hex. Over white that composites to #D5EDFE; over black, #556E7F.

Is #aadbfd a web-safe color?

No. The nearest web-safe colour is #99CCFF, ΔE2000 5.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #aadbfd 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 #aadbfd?

The safest is same-hue elevation: linear-gradient(135deg, #E6F4FE, #aadbfd 45%, #034B7D). For more colour, a short hue run to #9E8CFC keeps it rich without turning muddy.

Work with #aadbfd in the Color Lab

Every tool opens with this colour already loaded.

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