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#1cacdf

a balanced, electric cyan · cool · closest name: Deep Sky Blue

RGB
28, 172, 223
HSL
196°, 78%, 49%
CMYK
87, 23, 0, 13
Luminance
0.3508

At a glance

Every number on this page in one read: what #1cacdf is made of, how bright it looks, and which way it leans.

Hex
#1cacdf
Hue
196°
cyan
Saturation
78%
electric
Lightness
49%
balanced
Brightness
87%
HSV value
Perceived
60%
weighted brightness
Luminance
0.3508
WCAG relative
Temperature
Cool
94/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
8.02:1
Closest name
Deep Sky Blue
ΔE2000 5.7
Where it sits
Hue196° of 360°
Saturation78%
Lightness49%
Temperature
Warm ← → Cool94% 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#1cacdf
RGBrgb(28, 172, 223)
HSLhsl(196, 78%, 49%)
CMYKcmyk(87%, 23%, 0%, 13%)
LABlab(65.8 -17.8 -35.6)
LCHlch(65.8 39.8 243.5)
OKLCHoklch(0.698 0.133 229.3)
Decimal1879263
Display P3color(display-p3 0.110 0.675 0.875)

Copy-ready code

/* CSS */
color: #1cacdf;
background-color: #1cacdf;
/* Tailwind (arbitrary) */
class="text-[#1cacdf] bg-[#1cacdf]"
/* SCSS */
$brand: #1cacdf;
/* SwiftUI */
Color(red: 0.110, green: 0.675, blue: 0.875)
/* Android */
Color.parseColor("#1cacdf")
/* Flutter */
Color(0xFF1CACDF)
/* Python / OpenCV (BGR) */
(223, 172, 28)

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 #1cacdf · 8.02:1
Use #000000AAA at every size.
Aa
White text · 2.62:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.02:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #1cacdf as text scores 2.62:1 on white and 8.02:1 on black.

Accessibility — WCAG contrast

Aa
#1cacdf on white: 2.62:1
AA ✗ fail · AA-large · AAA
Aa
#1cacdf on black: 8.02:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #91A9E1
deuteranopia · #7998DE
tritanopia · #00BABD

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #1cacdf is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FAFC
#E6F4F9
#C7E9F5
#9BDCF2
#69CAEC
#38B8E6
#1cacdf
#178CB5
#127091
#115269
#0B3342
Base = 600Lightest = 50 · #F3FAFCDarkest = 950 · #0B3342
:root {
  --brand-50: #F3FAFC;
  --brand-100: #E6F4F9;
  --brand-200: #C7E9F5;
  --brand-300: #9BDCF2;
  --brand-400: #69CAEC;
  --brand-500: #38B8E6;
  --brand-600: #1cacdf;
  --brand-700: #178CB5;
  --brand-800: #127091;
  --brand-900: #115269;
  --brand-950: #0B3342;
  --brand: #1cacdf;
  --brand-ink: #000000;
}

Colors that work with #1cacdf

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#F4F9FA
Tinted page background
Border#C0E1ED
Hairlines and dividers
Muted text#4B869B
Captions on the surface
Accent#E41917
Second voice, not a rival
Dark variant#0E5771
Hover, pressed, headers
Light variant#E8F7FC
Selected rows, tints
Dark surface#142024
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 #1cacdf

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
  • 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
  • Thin strokes and 1px borders — they disappear on light UI
  • 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#DF4F1C
Analogous left#1CDFB0
Analogous right#1C4ADF
Split-complement 1#DF1C4A
Split-complement 2#DFB01C
Triadic 1#DF1CAC
Triadic 2#ACDF1C
Tetradic#B01CDF

RGB percentages

Red11.0%
Green67.5%
Blue87.5%

CMYK percentages

Cyan87.4%
Magenta22.9%
Yellow0.0%
Key (black)12.5%

Color previews

#1cacdf text on a black background

contrast 8.02:1

Card sample

#1cacdf text on a white background

contrast 2.62:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #1cacdf;
Background color
Panel with #1cacdf background
background-color: #1cacdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #1cacdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(28, 172, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(28, 172, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1cacdf;
background: linear-gradient(135deg, #1cacdf, #1C2ADF);

Monochromatic scale

Palettes built from #1cacdf

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.

#1cacdf in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyTravelHealthcareMedia
Common UI roles
ButtonsLinksFocus statesCharts
Print note

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

#1cacdf, answered

What color is #1cacdf?

#1cacdf is a balanced electric cyan, closest to Deep Sky Blue (ΔE2000 5.7). It sits at 196° on the hue wheel with 78% saturation and 49% lightness, which reads as cool.

What is the RGB value of #1cacdf?

rgb(28, 172, 223) — 28 red, 172 green and 223 blue out of 255, or 11% / 67.5% / 87.5% by channel.

Is #1cacdf a light or a dark color?

It is a mid-tone. Relative luminance is 0.3508 and perceived brightness is 60%, so black text on it reaches 8.02:1.

Should I use black or white text on #1cacdf?

Black. It scores 8.02:1 against #1cacdf, versus 2.62:1 for white — AAA at any size.

What is the complementary color of #1cacdf?

#DF4F1C sits directly opposite on the wheel. Softer options are the split-complements #DF1C4A and #DFB01C, which give the same contrast with far less vibration.

What colors go well with #1cacdf?

For interface work: #F4F9FA as the surface, #C0E1ED for borders, #4B869B for secondary text, #E41917 as an accent and #0E5771 for hover and pressed states. For a palette, the analogous pair #1CDFB0 and #1C4ADF stays calm, while #DF4F1C is the loudest partner.

What is #1cacdf in CMYK for printing?

cmyk(87%, 23%, 0%, 13%). 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 #1cacdf warm or cool?

Cool — it scores 94 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #1CDFCA; nudged cooler, #1992E1.

Work with #1cacdf in the Color Lab