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#6ecfdb

a balanced, vivid cyan · cool · closest name: Dark Turquoise

RGB
110, 207, 219
HSL
187°, 60%, 65%
CMYK
50, 6, 0, 14
Luminance
0.5306

At a glance

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

Hex
#6ecfdb
Hue
187°
cyan
Saturation
60%
vivid
Lightness
65%
balanced
Brightness
86%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5306
WCAG relative
Temperature
Cool
90/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
11.61:1
Closest name
Dark Turquoise
ΔE2000 7
Where it sits
Hue187° of 360°
Saturation60%
Lightness65%
Temperature
Warm ← → Cool90% 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#6ecfdb
RGBrgb(110, 207, 219)
HSLhsl(187, 60%, 65%)
CMYKcmyk(50%, 6%, 0%, 14%)
LABlab(77.9 -25.4 -14.8)
LCHlch(77.9 29.4 210.2)
OKLCHoklch(0.800 0.093 206.0)
Decimal7262171
Display P3color(display-p3 0.431 0.812 0.859)

Copy-ready code

/* CSS */
color: #6ecfdb;
background-color: #6ecfdb;
/* Tailwind (arbitrary) */
class="text-[#6ecfdb] bg-[#6ecfdb]"
/* SCSS */
$brand: #6ecfdb;
/* SwiftUI */
Color(red: 0.431, green: 0.812, blue: 0.859)
/* Android */
Color.parseColor("#6ecfdb")
/* Flutter */
Color(0xFF6ECFDB)
/* Python / OpenCV (BGR) */
(219, 207, 110)

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 #6ecfdb · 11.61:1
Use #000000AAA at every size.
Aa
White text · 1.81:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.61:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #6ecfdb as text scores 1.81:1 on white and 11.61:1 on black.

Accessibility — WCAG contrast

Aa
#6ecfdb on white: 1.81:1
AA ✗ fail · AA-large · AAA
Aa
#6ecfdb on black: 11.61:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C1C8DC
deuteranopia · #B0BBDB
tritanopia · #28D6D2

Color scale — 50 to 950

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

#F4FAFB
#E9F5F7
#CCECEF
#A5E1E9
#6ecfdb
#4BC3D2
#31B4C4
#2996A3
#207883
#1B585F
#11373B
Base = 400Lightest = 50 · #F4FAFBDarkest = 950 · #11373B
:root {
  --brand-50: #F4FAFB;
  --brand-100: #E9F5F7;
  --brand-200: #CCECEF;
  --brand-300: #A5E1E9;
  --brand-400: #6ecfdb;
  --brand-500: #4BC3D2;
  --brand-600: #31B4C4;
  --brand-700: #2996A3;
  --brand-800: #207883;
  --brand-900: #1B585F;
  --brand-950: #11373B;
  --brand: #6ecfdb;
  --brand-ink: #000000;
}

Colors that work with #6ecfdb

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#F4FAFA
Tinted page background
Border#C0E8ED
Hairlines and dividers
Muted text#4B929B
Captions on the surface
Accent#DF6A7B
Second voice, not a rival
Dark variant#195E66
Hover, pressed, headers
Light variant#EBF8FA
Selected rows, tints
Dark surface#142324
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 #6ecfdb

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#DB7A6E
Analogous left#6EDBB0
Analogous right#6E98DB
Split-complement 1#DB6E98
Split-complement 2#DBB06E
Triadic 1#DB6ECF
Triadic 2#CFDB6E
Tetradic#B06EDB

RGB percentages

Red43.1%
Green81.2%
Blue85.9%

CMYK percentages

Cyan49.8%
Magenta5.5%
Yellow0.0%
Key (black)14.1%

Color previews

#6ecfdb text on a black background

contrast 11.61:1

Card sample

#6ecfdb text on a white background

contrast 1.81:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(110, 207, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(110, 207, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #6ecfdb;
background: linear-gradient(135deg, #6ecfdb, #6E86DB);

Monochromatic scale

Palettes built from #6ecfdb

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.

#6ecfdb 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.

#6ecfdb, answered

What color is #6ecfdb?

#6ecfdb is a balanced vivid cyan, closest to Dark Turquoise (ΔE2000 7). It sits at 187° on the hue wheel with 60% saturation and 65% lightness, which reads as cool.

What is the RGB value of #6ecfdb?

rgb(110, 207, 219) — 110 red, 207 green and 219 blue out of 255, or 43.1% / 81.2% / 85.9% by channel.

Is #6ecfdb a light or a dark color?

It is a light color. Relative luminance is 0.5306 and perceived brightness is 73%, so black text on it reaches 11.61:1.

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

Black. It scores 11.61:1 against #6ecfdb, versus 1.81:1 for white — AAA at any size.

What is the complementary color of #6ecfdb?

#DB7A6E sits directly opposite on the wheel. Softer options are the split-complements #DB6E98 and #DBB06E, which give the same contrast with far less vibration.

What colors go well with #6ecfdb?

For interface work: #F4FAFA as the surface, #C0E8ED for borders, #4B929B for secondary text, #DF6A7B as an accent and #195E66 for hover and pressed states. For a palette, the analogous pair #6EDBB0 and #6E98DB stays calm, while #DB7A6E is the loudest partner.

What is #6ecfdb in CMYK for printing?

cmyk(50%, 6%, 0%, 14%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #6ecfdb warm or cool?

Cool — it scores 90 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #6EDBBF; nudged cooler, #6CB2DD.

Work with #6ecfdb in the Color Lab