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#19ebdf

a balanced, electric cyan · cool · closest name: Turquoise

RGB
25, 235, 223
HSL
177°, 84%, 51%
CMYK
89, 0, 5, 8
Luminance
0.6495

At a glance

Every number on this page in one read: what #19ebdf is made of, how bright it looks, and which way it leans.

Hex
#19ebdf
Hue
177°
cyan
Saturation
84%
electric
Lightness
51%
balanced
Brightness
92%
HSV value
Perceived
77%
weighted brightness
Luminance
0.6495
WCAG relative
Temperature
Cool
86/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
13.99:1
Closest name
Turquoise
ΔE2000 3.1
Where it sits
Hue177° of 360°
Saturation84%
Lightness51%
Temperature
Warm ← → Cool86% 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#19ebdf
RGBrgb(25, 235, 223)
HSLhsl(177, 84%, 51%)
CMYKcmyk(89%, 0%, 5%, 8%)
LABlab(84.5 -47.9 -7.3)
LCHlch(84.5 48.5 188.7)
OKLCHoklch(0.848 0.145 188.2)
Decimal1698783
Display P3color(display-p3 0.098 0.922 0.875)

Copy-ready code

/* CSS */
color: #19ebdf;
background-color: #19ebdf;
/* Tailwind (arbitrary) */
class="text-[#19ebdf] bg-[#19ebdf]"
/* SCSS */
$brand: #19ebdf;
/* SwiftUI */
Color(red: 0.098, green: 0.922, blue: 0.875)
/* Android */
Color.parseColor("#19ebdf")
/* Flutter */
Color(0xFF19EBDF)
/* Python / OpenCV (BGR) */
(223, 235, 25)

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 #19ebdf · 13.99:1
Use #000000AAA at every size.
Aa
White text · 1.50:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.99:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #19ebdf as text scores 1.50:1 on white and 13.99:1 on black.

Accessibility — WCAG contrast

Aa
#19ebdf on white: 1.50:1
AA ✗ fail · AA-large · AAA
Aa
#19ebdf on black: 13.99:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #DDDEDF
deuteranopia · #C4CBE1
tritanopia · #00F1E7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #19ebdf 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.

#F2FCFC
#E6FAF9
#C5F6F4
#98F6F1
#64F2EA
#31EDE2
#19ebdf
#10BCB2
#0D968E
#0E6C67
#094440
Base = 600Lightest = 50 · #F2FCFCDarkest = 950 · #094440
:root {
  --brand-50: #F2FCFC;
  --brand-100: #E6FAF9;
  --brand-200: #C5F6F4;
  --brand-300: #98F6F1;
  --brand-400: #64F2EA;
  --brand-500: #31EDE2;
  --brand-600: #19ebdf;
  --brand-700: #10BCB2;
  --brand-800: #0D968E;
  --brand-900: #0E6C67;
  --brand-950: #094440;
  --brand: #19ebdf;
  --brand-ink: #000000;
}

Colors that work with #19ebdf

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#C0EDEA
Hairlines and dividers
Muted text#4B9B96
Captions on the surface
Accent#F01458
Second voice, not a rival
Dark variant#0A756F
Hover, pressed, headers
Light variant#E8FDFC
Selected rows, tints
Dark surface#142424
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 #19ebdf

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#EB1925
Analogous left#19EB76
Analogous right#198EEB
Split-complement 1#EB198E
Split-complement 2#EB7619
Triadic 1#DF19EB
Triadic 2#EBDF19
Tetradic#7619EB

RGB percentages

Red9.8%
Green92.2%
Blue87.5%

CMYK percentages

Cyan89.4%
Magenta0.0%
Yellow5.1%
Key (black)7.8%

Color previews

#19ebdf text on a black background

contrast 13.99:1

Card sample

#19ebdf text on a white background

contrast 1.50:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #19ebdf;
Background color
Panel with #19ebdf background
background-color: #19ebdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #19ebdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(25, 235, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(25, 235, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #19ebdf;
background: linear-gradient(135deg, #19ebdf, #196BEB);

Monochromatic scale

Palettes built from #19ebdf

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.

#19ebdf 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.

#19ebdf, answered

What color is #19ebdf?

#19ebdf is a balanced electric cyan, closest to Turquoise (ΔE2000 3.1). It sits at 177° on the hue wheel with 84% saturation and 51% lightness, which reads as cool.

What is the RGB value of #19ebdf?

rgb(25, 235, 223) — 25 red, 235 green and 223 blue out of 255, or 9.8% / 92.2% / 87.5% by channel.

Is #19ebdf a light or a dark color?

It is a light color. Relative luminance is 0.6495 and perceived brightness is 77%, so black text on it reaches 13.99:1.

Should I use black or white text on #19ebdf?

Black. It scores 13.99:1 against #19ebdf, versus 1.50:1 for white — AAA at any size.

What is the complementary color of #19ebdf?

#EB1925 sits directly opposite on the wheel. Softer options are the split-complements #EB198E and #EB7619, which give the same contrast with far less vibration.

What colors go well with #19ebdf?

For interface work: #F4FAFA as the surface, #C0EDEA for borders, #4B9B96 for secondary text, #F01458 as an accent and #0A756F for hover and pressed states. For a palette, the analogous pair #19EB76 and #198EEB stays calm, while #EB1925 is the loudest partner.

What is #19ebdf in CMYK for printing?

cmyk(89%, 0%, 5%, 8%). 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 #19ebdf warm or cool?

Cool — it scores 86 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #19EB92; nudged cooler, #17BCEE.

Work with #19ebdf in the Color Lab