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#cdddf4

a pale, vivid blue · cool · closest name: Light Steel Blue

RGB
205, 221, 244
HSL
215°, 64%, 88%
CMYK
16, 9, 0, 4
Luminance
0.7122

At a glance

Every number on this page in one read: what #cdddf4 is made of, how bright it looks, and which way it leans.

Hex
#cdddf4
Hue
215°
blue
Saturation
64%
vivid
Lightness
88%
pale
Brightness
96%
HSV value
Perceived
86%
weighted brightness
Luminance
0.7122
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
15.24:1
Closest name
Light Steel Blue
ΔE2000 6.3
Where it sits
Hue215° of 360°
Saturation64%
Lightness88%
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.

Every format

HEX#cdddf4
RGBrgb(205, 221, 244)
HSLhsl(215, 64%, 88%)
CMYKcmyk(16%, 9%, 0%, 4%)
LABlab(87.6 -0.7 -13.0)
LCHlch(87.6 13.0 266.7)
OKLCHoklch(0.893 0.036 257.4)
Decimal13491700
Display P3color(display-p3 0.804 0.867 0.957)

Copy-ready code

/* CSS */
color: #cdddf4;
background-color: #cdddf4;
/* Tailwind (arbitrary) */
class="text-[#cdddf4] bg-[#cdddf4]"
/* SCSS */
$brand: #cdddf4;
/* SwiftUI */
Color(red: 0.804, green: 0.867, blue: 0.957)
/* Android */
Color.parseColor("#cdddf4")
/* Flutter */
Color(0xFFCDDDF4)
/* Python / OpenCV (BGR) */
(244, 221, 205)

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 #cdddf4 · 15.24:1
Use #000000AAA at every size.
Aa
White text · 1.38:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.24:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #cdddf4 as text scores 1.38:1 on white and 15.24:1 on black.

Accessibility — WCAG contrast

Aa
#cdddf4 on white: 1.38:1
AA ✗ fail · AA-large · AAA
Aa
#cdddf4 on black: 15.24:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #D5DEF5
deuteranopia · #D1DAF3
tritanopia · #C4E2E4

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #cdddf4 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.

#F4F7FB
#E8EEF7
#cdddf4
#A3C0EB
#75A1E1
#4782D6
#2C6CC9
#255AA7
#1D4886
#193761
#10223D
Base = 200Lightest = 50 · #F4F7FBDarkest = 950 · #10223D
:root {
  --brand-50: #F4F7FB;
  --brand-100: #E8EEF7;
  --brand-200: #cdddf4;
  --brand-300: #A3C0EB;
  --brand-400: #75A1E1;
  --brand-500: #4782D6;
  --brand-600: #2C6CC9;
  --brand-700: #255AA7;
  --brand-800: #1D4886;
  --brand-900: #193761;
  --brand-950: #10223D;
  --brand: #cdddf4;
  --brand-ink: #000000;
}

Colors that work with #cdddf4

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#C0D2ED
Hairlines and dividers
Muted text#4B6C9B
Captions on the surface
Accent#AB5021
Second voice, not a rival
Dark variant#173868
Hover, pressed, headers
Light variant#EAF1FA
Selected rows, tints
Dark surface#141B24
Dark-mode background
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

How to use #cdddf4

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

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#F4E4CD
Analogous left#CDF0F4
Analogous right#D0CDF4
Split-complement 1#F4D0CD
Split-complement 2#F0F4CD
Triadic 1#F4CDDD
Triadic 2#DDF4CD
Tetradic#F4CDF0

RGB percentages

Red80.4%
Green86.7%
Blue95.7%

CMYK percentages

Cyan16.0%
Magenta9.4%
Yellow0.0%
Key (black)4.3%

Color previews

#cdddf4 text on a black background

contrast 15.24:1

Card sample

#cdddf4 text on a white background

contrast 1.38:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #cdddf4;
Background color
Panel with #cdddf4 background
background-color: #cdddf4;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #cdddf4;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(205, 221, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(205, 221, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cdddf4;
background: linear-gradient(135deg, #cdddf4, #D7CDF4);

Monochromatic scale

Palettes built from #cdddf4

Shades — darker

Tints — lighter

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.

#cdddf4 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

Very light tints can drop out on uncoated stock; check it at 100% size before signing off.

#cdddf4, answered

What color is #cdddf4?

#cdddf4 is a pale vivid blue, closest to Light Steel Blue (ΔE2000 6.3). It sits at 215° on the hue wheel with 64% saturation and 88% lightness, which reads as cool.

What is the RGB value of #cdddf4?

rgb(205, 221, 244) — 205 red, 221 green and 244 blue out of 255, or 80.4% / 86.7% / 95.7% by channel.

Is #cdddf4 a light or a dark color?

It is a light color. Relative luminance is 0.7122 and perceived brightness is 86%, so black text on it reaches 15.24:1.

Should I use black or white text on #cdddf4?

Black. It scores 15.24:1 against #cdddf4, versus 1.38:1 for white — AAA at any size.

What is the complementary color of #cdddf4?

#F4E4CD sits directly opposite on the wheel. Softer options are the split-complements #F4D0CD and #F0F4CD, which give the same contrast with far less vibration.

What colors go well with #cdddf4?

For interface work: #F4F7FA as the surface, #C0D2ED for borders, #4B6C9B for secondary text, #AB5021 as an accent and #173868 for hover and pressed states. For a palette, the analogous pair #CDF0F4 and #D0CDF4 stays calm, while #F4E4CD is the loudest partner.

What is #cdddf4 in CMYK for printing?

cmyk(16%, 9%, 0%, 4%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #cdddf4 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 #CDCFF4; nudged cooler, #B7D1F0.

Work with #cdddf4 in the Color Lab