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blue · cool

#cddafe

a pale, electric blue · cool · closest name: Lavender

Token name suggestion: Chalk Denim

RGB
205, 218, 254
HSL
224°, 96%, 90%
CMYK
19, 14, 0, 0
Luminance
0.7028

#cddafe is a pale electric blue, 224° on the wheel and 92/100 on the cool side. Put black text on it (15.06:1). As text it scores 1.39:1 on white — use #376BFB instead. Nearest name is Lavender, nearest Tailwind family is sky.

hsl(224 96% 90%)rgb(205 218 254)Base step 200AAA inkCool

At a glance

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

Hex
#cddafe
Hue
224°
blue
Saturation
96%
electric
Lightness
90%
pale
Brightness
100%
HSV value
Perceived
86%
weighted brightness
Luminance
0.7028
WCAG relative
Temperature
Cool
92/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
15.06:1
Closest name
Lavender
ΔE2000 7.2
Chroma
19.2
LCH, 0–130ish
OKLCH L
0.890
perceptual lightness
Tailwind
sky
500 · ΔE 24.7
Web-safe
#CCCCFF
nearest of 216
Where it sits
Hue224° of 360°
Saturation96%
Lightness90%
Saturation × lightness field

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

Temperature
Warm ← → Cool92% 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
Red18%
Green71%
Blue10%

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

Every format

HEX#cddafe
HEX (8-digit)#cddafeff
RGBrgb(205, 218, 254)
RGBArgba(205, 218, 254, 1)
HSLhsl(224, 96%, 90%)
HSV / HSBhsv(224, 19%, 100%)
HWBhwb(224 80% 0%)
CMYKcmyk(19%, 14%, 0%, 0%)
LABlab(87.1 3.0 -19.0)
LCHlch(87.1 19.2 278.8)
OKLCHoklch(0.890 0.052 269.7)
XYZ (D65)xyz(68.13, 70.28, 103.72)
Decimal13490942
Display P3color(display-p3 0.804 0.855 0.996)
Web-safe#CCCCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #cddafe;
background-color: #cddafe;
/* CSS custom property */
--brand: #cddafe;
/* Tailwind (arbitrary) */
class="text-[#cddafe] bg-[#cddafe]"
/* SCSS */
$brand: #cddafe;
/* SwiftUI */
Color(red: 0.804, green: 0.855, blue: 0.996)
/* UIKit */
UIColor(red: 0.804, green: 0.855, blue: 0.996, alpha: 1)
/* Android XML */
<color name="brand">#CDDAFE</color>
/* Android Compose */
Color(0xFFCDDAFE)
/* Flutter */
Color(0xFFCDDAFE)
/* Python / OpenCV (BGR) */
(254, 218, 205)
/* Python / PIL (RGB) */
(205, 218, 254)
/* Java AWT */
new Color(205, 218, 254)
/* .NET */
Color.FromArgb(255, 205, 218, 254)
/* OpenGL / Unity (0–1) */
(0.8039f, 0.8549f, 0.9961f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{205,218,254}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #cddafe 85%, white);
border-color: color-mix(in oklab, #cddafe 40%, transparent);
/* theme-aware in one line */
color: light-dark(#02237D, #D3DAEE);
/* relative colour syntax */
--hover: hsl(from #cddafe 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: #F1F5FD;
  --brand-100: #E4EAFC;
  --brand-200: #cddafe;
  --brand-300: #91AEFD;
  --brand-400: #5A85FC;
  --brand-500: #235CFB;
  --brand-600: #0543F0;
  --brand-700: #0438C8;
  --brand-800: #032DA0;
  --brand-900: #072473;
  --brand-950: #041648;
  --brand: #cddafe;
  --brand-ink: #000000;
  --brand-surface: #F4F6FA;
  --brand-border: #C0CCED;
  --brand-hover: #AAC0FD;
  --brand-pressed: #87A6FD;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141824;
    --brand-ink: #D3DAEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1F5FD',
        100: '#E4EAFC',
        200: '#cddafe',
        300: '#91AEFD',
        400: '#5A85FC',
        500: '#235CFB',
        600: '#0543F0',
        700: '#0438C8',
        800: '#032DA0',
        900: '#072473',
        950: '#041648',
        DEFAULT: '#cddafe',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1F5FD,
  '100': #E4EAFC,
  '200': #cddafe,
  '300': #91AEFD,
  '400': #5A85FC,
  '500': #235CFB,
  '600': #0543F0,
  '700': #0438C8,
  '800': #032DA0,
  '900': #072473,
  '950': #041648,
);
$brand-base: #cddafe;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1F5FD", "$type": "color" },
      "100": { "$value": "#E4EAFC", "$type": "color" },
      "200": { "$value": "#cddafe", "$type": "color" },
      "300": { "$value": "#91AEFD", "$type": "color" },
      "400": { "$value": "#5A85FC", "$type": "color" },
      "500": { "$value": "#235CFB", "$type": "color" },
      "600": { "$value": "#0543F0", "$type": "color" },
      "700": { "$value": "#0438C8", "$type": "color" },
      "800": { "$value": "#032DA0", "$type": "color" },
      "900": { "$value": "#072473", "$type": "color" },
      "950": { "$value": "#041648", "$type": "color" }
    },
    "brandInk": { "$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 #cddafe · 15.06:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.39:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.06:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #cddafe as text scores 1.39:1 on white and 15.06:1 on black.
Best tinted ink on it, if plain black or white feels flat: #02237D at 9.78:1.

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
#376BFB · 4.51:1
AA on white−30% L
#376BFB
The quick fox
#0542EB · 7.03:1
AAA on white−43% L
#0542EB
The quick fox
#cddafe · 15.06:1
AA on blackalready passes
#cddafe
The quick fox
#cddafe · 15.06:1
AAA on blackalready passes
#cddafe

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #6990FC 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
#cddafe on white: 1.39:1
AA ✗ fail · AA-large · AAA
Aa
#cddafe on black: 15.06:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

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

NeutralRatioBoth directions
White1.39:1AaAa
Slate 501.33:1AaAa
Slate 1001.27:1AaAa
Slate 2001.13:1AaAa
Slate 3001.06:1AaAa
Slate 4001.84:1AaAa
Slate 5003.41:1AaAa
Slate 6005.43:1AaAa
Slate 7007.42:1AaAa
Slate 80010.49:1AaAa
Slate 90012.80:1AaAa
Black15.06:1AaAa
Colour vision deficiency
true color
protanopia · #D0DDFF
deuteranopia · #CCD8FD
tritanopia · #C1E1E6

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. #cddafe 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.

#F1F5FD
#E4EAFC
#cddafe
#91AEFD
#5A85FC
#235CFB
#0543F0
#0438C8
#032DA0
#072473
#041648
Base = 200Lightest = 50 · #F1F5FDDarkest = 950 · #041648Text 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 0.013 269.7);
  --brand-100: oklch(0.94 0.021 269.7);
  --brand-200: oklch(0.88 0.031 269.7);
  --brand-300: oklch(0.80 0.040 269.7);
  --brand-400: oklch(0.72 0.047 269.7);
  --brand-500: oklch(0.64 0.052 269.7);
  --brand-600: oklch(0.56 0.052 269.7);
  --brand-700: oklch(0.48 0.049 269.7);
  --brand-800: oklch(0.40 0.043 269.7);
  --brand-900: oklch(0.32 0.036 269.7);
  --brand-950: oklch(0.24 0.028 269.7);
}

Colors that work with #cddafe

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#F4F6FA
Tinted page background
Border#C0CCED
Hairlines and dividers
Muted text#4B609B
Captions on the surface
Accent#CC6400
Second voice, not a rival
Dark variant#02237D
Hover, pressed, headers
Light variant#E6ECFF
Selected rows, tints
Dark surface#141824
Dark-mode background
Hover#AAC0FD
One step down in lightness
Pressed#87A6FD
Two steps down
Disabled#F3F4F7
Chroma pulled out
Focus ring#D6E1FF
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 #cddafe

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 #02237D
Safe as a 1px border on white
No — use #6990FC

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 high lightness makes it recede — a surface colour rather than a statement.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight10/100
  • 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#FEF1CD
Analogous left#CDF2FE
Analogous right#D9CDFE
Split-complement 1#FED9CD
Split-complement 2#F2FECD
Triadic 1#FECDDA
Triadic 2#DAFECD
Tetradic#FECDF2
On the wheel
Base+30°−30°+120°+240°+180°224°

#cddafe sits at 224°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red80.4%
Green85.5%
Blue99.6%
R · 0–255
205
0xcd
G · 0–255
218
0xda
B · 0–255
254
0xfe

CMYK percentages

Cyan19.3%
Magenta14.2%
Yellow0.0%
Key (black)0.4%

Total ink coverage is 34%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#cddafe text on a black background

contrast 15.06:1

Card sample

#cddafe text on a white background

contrast 1.39:1

Card sample

#cddafe on grey

1.27:1

#cddafe on its own surface

1.29:1

#cddafe on its dark surface

12.70:1

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(205, 218, 254, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(205, 218, 254, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cddafe;
background: linear-gradient(135deg, #cddafe, #E1CDFE);
Gradient text

Gradient headline

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

Marked up text

text-decoration-color: #cddafe;
caret-color: #cddafe;
Left rule
Pull quote or callout
border-left: 4px solid #cddafe;
Ring + tint
Selected chip
background: #E6ECFF;
box-shadow: inset 0 0 0 2px #cddafe;
Conic badge
68%
background: conic-gradient(#cddafe 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #cddafe 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(205, 218, 254, 0.5)
rgb(205 218 254 / 50%)
#cddafe80
hsl(224 96% 90% / 50%)
color-mix(in srgb, #cddafe 50%, transparent)
Alpha8-digit hexFlat on white
10%#cddafe1a#FAFBFF
20%#cddafe33#F5F8FF
40%#cddafe66#EBF0FF
60%#cddafe99#E1E9FE
80%#cddafecc#D7E1FE

Gradients from #cddafe

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, #EBF0FF, #cddafe 45%, #02237D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #cddafe, #D5AFFD);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #cddafe, #FEF1CD);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F0F4FF 0%, #cddafe 45%, #02237D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F6FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #FFFFFF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #F1EBFF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #02237D 0%, transparent 65%), #cddafe;

Monochromatic scale

Palettes built from #cddafe

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.

#cddafe 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 15.06:1.

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.

#cddafe, answered

What color is #cddafe?

#cddafe is a pale electric blue, closest to Lavender (ΔE2000 7.2). It sits at 224° on the hue wheel with 96% saturation and 90% lightness, which reads as cool.

What is the RGB value of #cddafe?

rgb(205, 218, 254) — 205 red, 218 green and 254 blue out of 255, or 80.4% / 85.5% / 99.6% by channel.

What is #cddafe in HSL and HSV?

hsl(224, 96%, 90%) and hsv(224, 19%, 100%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #cddafe a light or a dark color?

It is a light color. Relative luminance is 0.7028 and perceived brightness is 86%, so black text on it reaches 15.06:1.

Should I use black or white text on #cddafe?

Black. It scores 15.06:1 against #cddafe, versus 1.39:1 for white — AAA at any size.

Is #cddafe accessible on a white background?

#cddafe on white scores 1.39:1, which fails WCAG AA at every size. Darken it to #376BFB to reach 4.5:1, or #0542EB for 7:1.

What is the complementary color of #cddafe?

#FEF1CD sits directly opposite on the wheel. Softer options are the split-complements #FED9CD and #F2FECD, which give the same contrast with far less vibration.

What colors go well with #cddafe?

For interface work: #F4F6FA as the surface, #C0CCED for borders, #4B609B for secondary text, #CC6400 as an accent and #02237D for hover and pressed states. For a palette, the analogous pair #CDF2FE and #D9CDFE stays calm, while #FEF1CD is the loudest partner.

What is #cddafe in CMYK for printing?

cmyk(19%, 14%, 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 #cddafe warm or cool?

Cool — it scores 92 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #D2CDFE; nudged cooler, #CCE2FF.

Which Tailwind color is closest to #cddafe?

The sky family — its 500 step is #0ea5e9, ΔE2000 24.7 away. That is a visible difference, so define #cddafe as a custom token rather than reaching for the built-in.

How do I use #cddafe in Tailwind CSS?

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

rgba(205, 218, 254, 0.5), or #cddafe80 in eight-digit hex. Over white that composites to #E6EDFF; over black, #676D7F.

Is #cddafe a web-safe color?

No. The nearest web-safe colour is #CCCCFF, ΔE2000 5.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #cddafe 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 #cddafe?

The safest is same-hue elevation: linear-gradient(135deg, #EBF0FF, #cddafe 45%, #02237D). For more colour, a short hue run to #D5AFFD keeps it rich without turning muddy.

Work with #cddafe in the Color Lab

Every tool opens with this colour already loaded.

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