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#6cbfd8

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

RGB
108, 191, 216
HSL
194°, 58%, 64%
CMYK
50, 12, 0, 15
Luminance
0.4541

At a glance

Every number on this page in one read: what #6cbfd8 is made of, how bright it looks, and which way it leans.

Hex
#6cbfd8
Hue
194°
cyan
Saturation
58%
vivid
Lightness
64%
balanced
Brightness
85%
HSV value
Perceived
68%
weighted brightness
Luminance
0.4541
WCAG relative
Temperature
Cool
93/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
10.08:1
Closest name
Sky Blue
ΔE2000 5
Where it sits
Hue194° of 360°
Saturation58%
Lightness64%
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#6cbfd8
RGBrgb(108, 191, 216)
HSLhsl(194, 58%, 64%)
CMYKcmyk(50%, 12%, 0%, 15%)
LABlab(73.2 -18.5 -20.3)
LCHlch(73.2 27.5 227.6)
OKLCHoklch(0.761 0.088 219.5)
Decimal7127000
Display P3color(display-p3 0.424 0.749 0.847)

Copy-ready code

/* CSS */
color: #6cbfd8;
background-color: #6cbfd8;
/* Tailwind (arbitrary) */
class="text-[#6cbfd8] bg-[#6cbfd8]"
/* SCSS */
$brand: #6cbfd8;
/* SwiftUI */
Color(red: 0.424, green: 0.749, blue: 0.847)
/* Android */
Color.parseColor("#6cbfd8")
/* Flutter */
Color(0xFF6CBFD8)
/* Python / OpenCV (BGR) */
(216, 191, 108)

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 #6cbfd8 · 10.08:1
Use #000000AAA at every size.
Aa
White text · 2.08:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.08:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #6cbfd8 as text scores 2.08:1 on white and 10.08:1 on black.

Accessibility — WCAG contrast

Aa
#6cbfd8 on white: 2.08:1
AA ✗ fail · AA-large · AAA
Aa
#6cbfd8 on black: 10.08:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #AFBBD9
deuteranopia · #9FAED8
tritanopia · #2CC8C7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #6cbfd8 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.

#F4F9FB
#E9F3F7
#CDE7EF
#A6D8E7
#6cbfd8
#4EB2D0
#33A1C2
#2B86A1
#226B81
#1C4F5E
#12313B
Base = 400Lightest = 50 · #F4F9FBDarkest = 950 · #12313B
:root {
  --brand-50: #F4F9FB;
  --brand-100: #E9F3F7;
  --brand-200: #CDE7EF;
  --brand-300: #A6D8E7;
  --brand-400: #6cbfd8;
  --brand-500: #4EB2D0;
  --brand-600: #33A1C2;
  --brand-700: #2B86A1;
  --brand-800: #226B81;
  --brand-900: #1C4F5E;
  --brand-950: #12313B;
  --brand: #6cbfd8;
  --brand-ink: #000000;
}

Colors that work with #6cbfd8

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#C0E2ED
Hairlines and dividers
Muted text#4B889B
Captions on the surface
Accent#DC686A
Second voice, not a rival
Dark variant#1B5465
Hover, pressed, headers
Light variant#EBF6FA
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 #6cbfd8

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#D8856C
Analogous left#6CD8BB
Analogous right#6C89D8
Split-complement 1#D86C89
Split-complement 2#D8BB6C
Triadic 1#D86CBF
Triadic 2#BFD86C
Tetradic#BB6CD8

RGB percentages

Red42.4%
Green74.9%
Blue84.7%

CMYK percentages

Cyan50.0%
Magenta11.6%
Yellow0.0%
Key (black)15.3%

Color previews

#6cbfd8 text on a black background

contrast 10.08:1

Card sample

#6cbfd8 text on a white background

contrast 2.08:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #6cbfd8;
Background color
Panel with #6cbfd8 background
background-color: #6cbfd8;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #6cbfd8;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(108, 191, 216, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(108, 191, 216, 0.45);
Border & gradient
Gradient panel
border: 3px solid #6cbfd8;
background: linear-gradient(135deg, #6cbfd8, #6C77D8);

Monochromatic scale

Palettes built from #6cbfd8

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.

#6cbfd8 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.

#6cbfd8, answered

What color is #6cbfd8?

#6cbfd8 is a balanced vivid cyan, closest to Sky Blue (ΔE2000 5). It sits at 194° on the hue wheel with 58% saturation and 64% lightness, which reads as cool.

What is the RGB value of #6cbfd8?

rgb(108, 191, 216) — 108 red, 191 green and 216 blue out of 255, or 42.4% / 74.9% / 84.7% by channel.

Is #6cbfd8 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4541 and perceived brightness is 68%, so black text on it reaches 10.08:1.

Should I use black or white text on #6cbfd8?

Black. It scores 10.08:1 against #6cbfd8, versus 2.08:1 for white — AAA at any size.

What is the complementary color of #6cbfd8?

#D8856C sits directly opposite on the wheel. Softer options are the split-complements #D86C89 and #D8BB6C, which give the same contrast with far less vibration.

What colors go well with #6cbfd8?

For interface work: #F4F9FA as the surface, #C0E2ED for borders, #4B889B for secondary text, #DC686A as an accent and #1B5465 for hover and pressed states. For a palette, the analogous pair #6CD8BB and #6C89D8 stays calm, while #D8856C is the loudest partner.

What is #6cbfd8 in CMYK for printing?

cmyk(50%, 12%, 0%, 15%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #6cbfd8 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 #6CD8C9; nudged cooler, #6AABDA.

Work with #6cbfd8 in the Color Lab