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#68bcdf

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

RGB
104, 188, 223
HSL
198°, 65%, 64%
CMYK
53, 16, 0, 13
Luminance
0.4424

At a glance

Every number on this page in one read: what #68bcdf is made of, how bright it looks, and which way it leans.

Hex
#68bcdf
Hue
198°
cyan
Saturation
65%
vivid
Lightness
64%
balanced
Brightness
87%
HSV value
Perceived
68%
weighted brightness
Luminance
0.4424
WCAG relative
Temperature
Cool
95/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
9.85:1
Closest name
Sky Blue
ΔE2000 5.3
Where it sits
Hue198° of 360°
Saturation65%
Lightness64%
Temperature
Warm ← → Cool95% 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#68bcdf
RGBrgb(104, 188, 223)
HSLhsl(198, 65%, 64%)
CMYKcmyk(53%, 16%, 0%, 13%)
LABlab(72.4 -15.9 -25.3)
LCHlch(72.4 29.9 237.9)
OKLCHoklch(0.755 0.096 227.2)
Decimal6864095
Display P3color(display-p3 0.408 0.737 0.875)

Copy-ready code

/* CSS */
color: #68bcdf;
background-color: #68bcdf;
/* Tailwind (arbitrary) */
class="text-[#68bcdf] bg-[#68bcdf]"
/* SCSS */
$brand: #68bcdf;
/* SwiftUI */
Color(red: 0.408, green: 0.737, blue: 0.875)
/* Android */
Color.parseColor("#68bcdf")
/* Flutter */
Color(0xFF68BCDF)
/* Python / OpenCV (BGR) */
(223, 188, 104)

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 #68bcdf · 9.85:1
Use #000000AAA at every size.
Aa
White text · 2.13:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.85:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #68bcdf as text scores 2.13:1 on white and 9.85:1 on black.

Accessibility — WCAG contrast

Aa
#68bcdf on white: 2.13:1
AA ✗ fail · AA-large · AAA
Aa
#68bcdf on black: 9.85:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #A9B9E1
deuteranopia · #98ACDF
tritanopia · #0BC6C7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #68bcdf is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3F9FB
#E8F3F7
#CBE6F1
#A2D6EB
#68bcdf
#46ADD8
#2B9BCA
#2481A8
#1D6887
#194C62
#0F303D
Base = 400Lightest = 50 · #F3F9FBDarkest = 950 · #0F303D
:root {
  --brand-50: #F3F9FB;
  --brand-100: #E8F3F7;
  --brand-200: #CBE6F1;
  --brand-300: #A2D6EB;
  --brand-400: #68bcdf;
  --brand-500: #46ADD8;
  --brand-600: #2B9BCA;
  --brand-700: #2481A8;
  --brand-800: #1D6887;
  --brand-900: #194C62;
  --brand-950: #0F303D;
  --brand: #68bcdf;
  --brand-ink: #000000;
}

Colors that work with #68bcdf

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#C0DFED
Hairlines and dividers
Muted text#4B839B
Captions on the surface
Accent#E36A64
Second voice, not a rival
Dark variant#165169
Hover, pressed, headers
Light variant#EAF6FB
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 #68bcdf

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#DF8B68
Analogous left#68DFC6
Analogous right#6881DF
Split-complement 1#DF6881
Split-complement 2#DFC668
Triadic 1#DF68BC
Triadic 2#BCDF68
Tetradic#C668DF

RGB percentages

Red40.8%
Green73.7%
Blue87.5%

CMYK percentages

Cyan53.4%
Magenta15.7%
Yellow0.0%
Key (black)12.5%

Color previews

#68bcdf text on a black background

contrast 9.85:1

Card sample

#68bcdf text on a white background

contrast 2.13:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #68bcdf;
Background color
Panel with #68bcdf background
background-color: #68bcdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #68bcdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(104, 188, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(104, 188, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #68bcdf;
background: linear-gradient(135deg, #68bcdf, #686DDF);

Monochromatic scale

Palettes built from #68bcdf

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.

#68bcdf 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.

#68bcdf, answered

What color is #68bcdf?

#68bcdf is a balanced vivid cyan, closest to Sky Blue (ΔE2000 5.3). It sits at 198° on the hue wheel with 65% saturation and 64% lightness, which reads as cool.

What is the RGB value of #68bcdf?

rgb(104, 188, 223) — 104 red, 188 green and 223 blue out of 255, or 40.8% / 73.7% / 87.5% by channel.

Is #68bcdf a light or a dark color?

It is a mid-tone. Relative luminance is 0.4424 and perceived brightness is 68%, so black text on it reaches 9.85:1.

Should I use black or white text on #68bcdf?

Black. It scores 9.85:1 against #68bcdf, versus 2.13:1 for white — AAA at any size.

What is the complementary color of #68bcdf?

#DF8B68 sits directly opposite on the wheel. Softer options are the split-complements #DF6881 and #DFC668, which give the same contrast with far less vibration.

What colors go well with #68bcdf?

For interface work: #F4F9FA as the surface, #C0DFED for borders, #4B839B for secondary text, #E36A64 as an accent and #165169 for hover and pressed states. For a palette, the analogous pair #68DFC6 and #6881DF stays calm, while #DF8B68 is the loudest partner.

What is #68bcdf in CMYK for printing?

cmyk(53%, 16%, 0%, 13%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #68bcdf warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #68DFD6; nudged cooler, #66ABE1.

Work with #68bcdf in the Color Lab