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#2dacce

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

RGB
45, 172, 206
HSL
193°, 64%, 49%
CMYK
78, 17, 0, 19
Luminance
0.3452

At a glance

Every number on this page in one read: what #2dacce is made of, how bright it looks, and which way it leans.

Hex
#2dacce
Hue
193°
cyan
Saturation
64%
vivid
Lightness
49%
balanced
Brightness
81%
HSV value
Perceived
59%
weighted brightness
Luminance
0.3452
WCAG relative
Temperature
Cool
93/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
7.90:1
Closest name
Deep Sky Blue
ΔE2000 8.9
Where it sits
Hue193° of 360°
Saturation64%
Lightness49%
Temperature
Warm ← → Cool93% 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#2dacce
RGBrgb(45, 172, 206)
HSLhsl(193, 64%, 49%)
CMYKcmyk(78%, 17%, 0%, 19%)
LABlab(65.4 -22.2 -26.9)
LCHlch(65.4 34.9 230.5)
OKLCHoklch(0.692 0.116 220.6)
Decimal2993358
Display P3color(display-p3 0.176 0.675 0.808)

Copy-ready code

/* CSS */
color: #2dacce;
background-color: #2dacce;
/* Tailwind (arbitrary) */
class="text-[#2dacce] bg-[#2dacce]"
/* SCSS */
$brand: #2dacce;
/* SwiftUI */
Color(red: 0.176, green: 0.675, blue: 0.808)
/* Android */
Color.parseColor("#2dacce")
/* Flutter */
Color(0xFF2DACCE)
/* Python / OpenCV (BGR) */
(206, 172, 45)

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 #2dacce · 7.90:1
Use #000000AAA at every size.
Aa
White text · 2.66:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.90:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2dacce as text scores 2.66:1 on white and 7.90:1 on black.

Accessibility — WCAG contrast

Aa
#2dacce on white: 2.66:1
AA ✗ fail · AA-large · AAA
Aa
#2dacce on black: 7.90:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #98A7D0
deuteranopia · #8298CE
tritanopia · #00B7B7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2dacce 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.

#F4FAFB
#E8F4F7
#CBE9F1
#A3DCEB
#75CAE1
#47B8D7
#2dacce
#258CA7
#1D7086
#195261
#10333D
Base = 600Lightest = 50 · #F4FAFBDarkest = 950 · #10333D
:root {
  --brand-50: #F4FAFB;
  --brand-100: #E8F4F7;
  --brand-200: #CBE9F1;
  --brand-300: #A3DCEB;
  --brand-400: #75CAE1;
  --brand-500: #47B8D7;
  --brand-600: #2dacce;
  --brand-700: #258CA7;
  --brand-800: #1D7086;
  --brand-900: #195261;
  --brand-950: #10333D;
  --brand: #2dacce;
  --brand-ink: #000000;
}

Colors that work with #2dacce

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#C0E3ED
Hairlines and dividers
Muted text#4B8A9B
Captions on the surface
Accent#D3282F
Second voice, not a rival
Dark variant#175769
Hover, pressed, headers
Light variant#EAF7FA
Selected rows, tints
Dark surface#142124
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 #2dacce

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#CE4F2D
Analogous left#2DCEA0
Analogous right#2D5BCE
Split-complement 1#CE2D5B
Split-complement 2#CEA02D
Triadic 1#CE2DAC
Triadic 2#ACCE2D
Tetradic#A02DCE

RGB percentages

Red17.6%
Green67.5%
Blue80.8%

CMYK percentages

Cyan78.2%
Magenta16.5%
Yellow0.0%
Key (black)19.2%

Color previews

#2dacce text on a black background

contrast 7.90:1

Card sample

#2dacce text on a white background

contrast 2.66:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2dacce;
Background color
Panel with #2dacce background
background-color: #2dacce;
Text shadow — hex

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(45, 172, 206, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(45, 172, 206, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2dacce;
background: linear-gradient(135deg, #2dacce, #2D41CE);

Monochromatic scale

Palettes built from #2dacce

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.

#2dacce 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

Converts to four-color process without much drama. Proof it anyway.

#2dacce, answered

What color is #2dacce?

#2dacce is a balanced vivid cyan, closest to Deep Sky Blue (ΔE2000 8.9). It sits at 193° on the hue wheel with 64% saturation and 49% lightness, which reads as cool.

What is the RGB value of #2dacce?

rgb(45, 172, 206) — 45 red, 172 green and 206 blue out of 255, or 17.6% / 67.5% / 80.8% by channel.

Is #2dacce a light or a dark color?

It is a mid-tone. Relative luminance is 0.3452 and perceived brightness is 59%, so black text on it reaches 7.90:1.

Should I use black or white text on #2dacce?

Black. It scores 7.90:1 against #2dacce, versus 2.66:1 for white — AAA at any size.

What is the complementary color of #2dacce?

#CE4F2D sits directly opposite on the wheel. Softer options are the split-complements #CE2D5B and #CEA02D, which give the same contrast with far less vibration.

What colors go well with #2dacce?

For interface work: #F4F9FA as the surface, #C0E3ED for borders, #4B8A9B for secondary text, #D3282F as an accent and #175769 for hover and pressed states. For a palette, the analogous pair #2DCEA0 and #2D5BCE stays calm, while #CE4F2D is the loudest partner.

What is #2dacce in CMYK for printing?

cmyk(78%, 17%, 0%, 19%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #2dacce warm or cool?

Cool — it scores 93 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2DCEB5; nudged cooler, #2B91D0.

Work with #2dacce in the Color Lab