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blue · cool

#acd0fe

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

Token name suggestion: Drift Harbour

RGB
172, 208, 254
HSL
214°, 98%, 84%
CMYK
32, 18, 0, 0
Luminance
0.6104

#acd0fe is a light electric blue, 214° on the wheel and 98/100 on the cool side. Put black text on it (13.21:1). As text it scores 1.59:1 on white — use #036FF9 instead. Nearest name is Light Steel Blue, nearest Tailwind family is sky.

hsl(214 98% 84%)rgb(172 208 254)Base step 200AAA inkCool

At a glance

Every number on this page in one read: what #acd0fe is made of, how bright it looks, and which way it leans.

Hex
#acd0fe
Hue
214°
blue
Saturation
98%
electric
Lightness
84%
light
Brightness
100%
HSV value
Perceived
80%
weighted brightness
Luminance
0.6104
WCAG relative
Temperature
Cool
98/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
13.21:1
Closest name
Light Steel Blue
ΔE2000 6.2
Chroma
26.4
LCH, 0–130ish
OKLCH L
0.847
perceptual lightness
Tailwind
sky
500 · ΔE 17.4
Web-safe
#99CCFF
nearest of 216
Where it sits
Hue214° of 360°
Saturation98%
Lightness84%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #acd0fe.

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
Red14%
Green74%
Blue12%

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

Every format

HEX#acd0fe
HEX (8-digit)#acd0feff
RGBrgb(172, 208, 254)
RGBArgba(172, 208, 254, 1)
HSLhsl(214, 98%, 84%)
HSV / HSBhsv(214, 32%, 100%)
HWBhwb(214 67% 0%)
CMYKcmyk(32%, 18%, 0%, 0%)
LABlab(82.4 -1.4 -26.4)
LCHlch(82.4 26.4 267.0)
OKLCHoklch(0.847 0.075 254.7)
XYZ (D65)xyz(57.45, 61.04, 102.50)
Decimal11325694
Display P3color(display-p3 0.675 0.816 0.996)
Web-safe#99CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #acd0fe;
background-color: #acd0fe;
/* CSS custom property */
--brand: #acd0fe;
/* Tailwind (arbitrary) */
class="text-[#acd0fe] bg-[#acd0fe]"
/* SCSS */
$brand: #acd0fe;
/* SwiftUI */
Color(red: 0.675, green: 0.816, blue: 0.996)
/* UIKit */
UIColor(red: 0.675, green: 0.816, blue: 0.996, alpha: 1)
/* Android XML */
<color name="brand">#ACD0FE</color>
/* Android Compose */
Color(0xFFACD0FE)
/* Flutter */
Color(0xFFACD0FE)
/* Python / OpenCV (BGR) */
(254, 208, 172)
/* Python / PIL (RGB) */
(172, 208, 254)
/* Java AWT */
new Color(172, 208, 254)
/* .NET */
Color.FromArgb(255, 172, 208, 254)
/* OpenGL / Unity (0–1) */
(0.6745f, 0.8157f, 0.9961f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{172,208,254}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #acd0fe 85%, white);
border-color: color-mix(in oklab, #acd0fe 40%, transparent);
/* theme-aware in one line */
color: light-dark(#02387E, #D3DFEE);
/* relative colour syntax */
--hover: hsl(from #acd0fe 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: #F1F7FD;
  --brand-100: #E4EEFC;
  --brand-200: #acd0fe;
  --brand-300: #90C0FE;
  --brand-400: #59A1FD;
  --brand-500: #2181FC;
  --brand-600: #036CF2;
  --brand-700: #025ACA;
  --brand-800: #0248A1;
  --brand-900: #063674;
  --brand-950: #042249;
  --brand: #acd0fe;
  --brand-ink: #000000;
  --brand-surface: #F4F7FA;
  --brand-border: #C0D3ED;
  --brand-hover: #89BCFE;
  --brand-pressed: #65A8FD;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141B24;
    --brand-ink: #D3DFEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1F7FD',
        100: '#E4EEFC',
        200: '#acd0fe',
        300: '#90C0FE',
        400: '#59A1FD',
        500: '#2181FC',
        600: '#036CF2',
        700: '#025ACA',
        800: '#0248A1',
        900: '#063674',
        950: '#042249',
        DEFAULT: '#acd0fe',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1F7FD,
  '100': #E4EEFC,
  '200': #acd0fe,
  '300': #90C0FE,
  '400': #59A1FD,
  '500': #2181FC,
  '600': #036CF2,
  '700': #025ACA,
  '800': #0248A1,
  '900': #063674,
  '950': #042249,
);
$brand-base: #acd0fe;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1F7FD", "$type": "color" },
      "100": { "$value": "#E4EEFC", "$type": "color" },
      "200": { "$value": "#acd0fe", "$type": "color" },
      "300": { "$value": "#90C0FE", "$type": "color" },
      "400": { "$value": "#59A1FD", "$type": "color" },
      "500": { "$value": "#2181FC", "$type": "color" },
      "600": { "$value": "#036CF2", "$type": "color" },
      "700": { "$value": "#025ACA", "$type": "color" },
      "800": { "$value": "#0248A1", "$type": "color" },
      "900": { "$value": "#063674", "$type": "color" },
      "950": { "$value": "#042249", "$type": "color" }
    },
    "brandInk": { "$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 #acd0fe · 13.21:1
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 · 13.21:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #acd0fe as text scores 1.59:1 on white and 13.21:1 on black.
Best tinted ink on it, if plain black or white feels flat: #02387E at 7.06:1.

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
#036FF9 · 4.52:1
AA on white−34% L
#036FF9
The quick fox
#0252B8 · 7.24:1
AAA on white−47% L
#0252B8
The quick fox
#acd0fe · 13.21:1
AA on blackalready passes
#acd0fe
The quick fox
#acd0fe · 13.21:1
AAA on blackalready passes
#acd0fe

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #4294FD 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
#acd0fe on white: 1.59:1
AA ✗ fail · AA-large · AAA
Aa
#acd0fe on black: 13.21:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #acd0fe as text on that neutral, and that neutral as text on #acd0fe.

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 5002.99:1AaAa
Slate 6004.77:1AaAa
Slate 7006.51:1AaAa
Slate 8009.20:1AaAa
Slate 90011.23:1AaAa
Black13.21:1AaAa
Colour vision deficiency
true color
protanopia · #BFD2FF
deuteranopia · #B6C9FD
tritanopia · #93DADF

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. #acd0fe 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.

#F1F7FD
#E4EEFC
#acd0fe
#90C0FE
#59A1FD
#2181FC
#036CF2
#025ACA
#0248A1
#063674
#042249
Base = 200Lightest = 50 · #F1F7FDDarkest = 950 · #042249Text 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 0.019 254.7);
  --brand-100: oklch(0.94 0.030 254.7);
  --brand-200: oklch(0.88 0.045 254.7);
  --brand-300: oklch(0.80 0.059 254.7);
  --brand-400: oklch(0.72 0.069 254.7);
  --brand-500: oklch(0.64 0.075 254.7);
  --brand-600: oklch(0.56 0.075 254.7);
  --brand-700: oklch(0.48 0.071 254.7);
  --brand-800: oklch(0.40 0.063 254.7);
  --brand-900: oklch(0.32 0.053 254.7);
  --brand-950: oklch(0.24 0.041 254.7);
}

Colors that work with #acd0fe

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#F4F7FA
Tinted page background
Border#C0D3ED
Hairlines and dividers
Muted text#4B6E9B
Captions on the surface
Accent#CC3F00
Second voice, not a rival
Dark variant#02387E
Hover, pressed, headers
Light variant#E6F1FF
Selected rows, tints
Dark surface#141B24
Dark-mode background
Hover#89BCFE
One step down in lightness
Pressed#65A8FD
Two steps down
Disabled#F3F5F7
Chroma pulled out
Focus ring#BFDBFF
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 #acd0fe

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 #02387E
Safe as a 1px border on white
No — use #4294FD

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#FEDAAC
Analogous left#ACF9FE
Analogous right#B1ACFE
Split-complement 1#FEB1AC
Split-complement 2#F9FEAC
Triadic 1#FEACD0
Triadic 2#D0FEAC
Tetradic#FEACF9
On the wheel
Base+30°−30°+120°+240°+180°214°

#acd0fe sits at 214°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red67.5%
Green81.6%
Blue99.6%
R · 0–255
172
0xac
G · 0–255
208
0xd0
B · 0–255
254
0xfe

CMYK percentages

Cyan32.3%
Magenta18.1%
Yellow0.0%
Key (black)0.4%

Total ink coverage is 51%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#acd0fe text on a black background

contrast 13.21:1

Card sample

#acd0fe text on a white background

contrast 1.59:1

Card sample

#acd0fe on grey

1.45:1

#acd0fe on its own surface

1.48:1

#acd0fe on its dark surface

10.90:1

CSS3 live lab

Text font color

The quick brown fox

color: #acd0fe;
Background color
Panel with #acd0fe background
background-color: #acd0fe;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #acd0fe;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(172, 208, 254, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(172, 208, 254, 0.45);
Border & gradient
Gradient panel
border: 3px solid #acd0fe;
background: linear-gradient(135deg, #acd0fe, #BFACFE);
Gradient text

Gradient headline

background: linear-gradient(90deg, #acd0fe, #D3ACFE);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #acd0fe;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #acd0fe;
caret-color: #acd0fe;
Left rule
Pull quote or callout
border-left: 4px solid #acd0fe;
Ring + tint
Selected chip
background: #E6F1FF;
box-shadow: inset 0 0 0 2px #acd0fe;
Conic badge
68%
background: conic-gradient(#acd0fe 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #acd0fe 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(172, 208, 254, 0.5)
rgb(172 208 254 / 50%)
#acd0fe80
hsl(214 98% 84% / 50%)
color-mix(in srgb, #acd0fe 50%, transparent)
Alpha8-digit hexFlat on white
10%#acd0fe1a#F7FAFF
20%#acd0fe33#EEF6FF
40%#acd0fe66#DEECFF
60%#acd0fe99#CDE3FE
80%#acd0fecc#BDD9FE

Gradients from #acd0fe

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, #E8F2FF, #acd0fe 45%, #02387E);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #acd0fe, #B18EFE);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #acd0fe, #FEDAAC);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F0F6FF 0%, #acd0fe 45%, #02387E 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F7FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #DEFFFE 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #D2CAFE 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #02387E 0%, transparent 65%), #acd0fe;

Monochromatic scale

Palettes built from #acd0fe

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.

#acd0fe 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 13.21:1.

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.

#acd0fe, answered

What color is #acd0fe?

#acd0fe is a light electric blue, closest to Light Steel Blue (ΔE2000 6.2). It sits at 214° on the hue wheel with 98% saturation and 84% lightness, which reads as cool.

What is the RGB value of #acd0fe?

rgb(172, 208, 254) — 172 red, 208 green and 254 blue out of 255, or 67.5% / 81.6% / 99.6% by channel.

What is #acd0fe in HSL and HSV?

hsl(214, 98%, 84%) and hsv(214, 32%, 100%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #acd0fe a light or a dark color?

It is a light color. Relative luminance is 0.6104 and perceived brightness is 80%, so black text on it reaches 13.21:1.

Should I use black or white text on #acd0fe?

Black. It scores 13.21:1 against #acd0fe, versus 1.59:1 for white — AAA at any size.

Is #acd0fe accessible on a white background?

#acd0fe on white scores 1.59:1, which fails WCAG AA at every size. Darken it to #036FF9 to reach 4.5:1, or #0252B8 for 7:1.

What is the complementary color of #acd0fe?

#FEDAAC sits directly opposite on the wheel. Softer options are the split-complements #FEB1AC and #F9FEAC, which give the same contrast with far less vibration.

What colors go well with #acd0fe?

For interface work: #F4F7FA as the surface, #C0D3ED for borders, #4B6E9B for secondary text, #CC3F00 as an accent and #02387E for hover and pressed states. For a palette, the analogous pair #ACF9FE and #B1ACFE stays calm, while #FEDAAC is the loudest partner.

What is #acd0fe in CMYK for printing?

cmyk(32%, 18%, 0%, 0%). 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 #acd0fe 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 #ACB2FE; nudged cooler, #92C4FF.

Which Tailwind color is closest to #acd0fe?

The sky family — its 500 step is #0ea5e9, ΔE2000 17.4 away. That is a visible difference, so define #acd0fe as a custom token rather than reaching for the built-in.

How do I use #acd0fe in Tailwind CSS?

Inline it as an arbitrary value with bg-[#acd0fe] or text-[#acd0fe], 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 #acd0fe with 50% opacity?

rgba(172, 208, 254, 0.5), or #acd0fe80 in eight-digit hex. Over white that composites to #D6E8FF; over black, #56687F.

Is #acd0fe a web-safe color?

No. The nearest web-safe colour is #99CCFF, ΔE2000 3.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #acd0fe 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 #acd0fe?

The safest is same-hue elevation: linear-gradient(135deg, #E8F2FF, #acd0fe 45%, #02387E). For more colour, a short hue run to #B18EFE keeps it rich without turning muddy.

Work with #acd0fe in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #acd0fe at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.