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#79d0df

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

RGB
121, 208, 223
HSL
189°, 61%, 68%
CMYK
46, 7, 0, 13
Luminance
0.5450

At a glance

Every number on this page in one read: what #79d0df is made of, how bright it looks, and which way it leans.

Hex
#79d0df
Hue
189°
cyan
Saturation
61%
vivid
Lightness
68%
light
Brightness
87%
HSV value
Perceived
74%
weighted brightness
Luminance
0.5450
WCAG relative
Temperature
Cool
91/100 cool
Color family
Cyan
Tone
Vivid
Best ink
Black
11.90:1
Closest name
Sky Blue
ΔE2000 6.2
Where it sits
Hue189° of 360°
Saturation61%
Lightness68%
Temperature
Warm ← → Cool91% 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#79d0df
RGBrgb(121, 208, 223)
HSLhsl(189, 61%, 68%)
CMYKcmyk(46%, 7%, 0%, 13%)
LABlab(78.8 -22.4 -15.6)
LCHlch(78.8 27.3 214.9)
OKLCHoklch(0.808 0.086 209.8)
Decimal7983327
Display P3color(display-p3 0.475 0.816 0.875)

Copy-ready code

/* CSS */
color: #79d0df;
background-color: #79d0df;
/* Tailwind (arbitrary) */
class="text-[#79d0df] bg-[#79d0df]"
/* SCSS */
$brand: #79d0df;
/* SwiftUI */
Color(red: 0.475, green: 0.816, blue: 0.875)
/* Android */
Color.parseColor("#79d0df")
/* Flutter */
Color(0xFF79D0DF)
/* Python / OpenCV (BGR) */
(223, 208, 121)

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 #79d0df · 11.90:1
Use #000000AAA at every size.
Aa
White text · 1.76:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.90:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #79d0df as text scores 1.76:1 on white and 11.90:1 on black.

Accessibility — WCAG contrast

Aa
#79d0df on white: 1.76:1
AA ✗ fail · AA-large · AAA
Aa
#79d0df on black: 11.90:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C2CAE0
deuteranopia · #B2BEDF
tritanopia · #45D7D4

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #79d0df 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
#E8F5F7
#CCEBF0
#A4DFE9
#79d0df
#4ABFD4
#2FB0C6
#2792A5
#1F7584
#1B5660
#11363C
Base = 400Lightest = 50 · #F4FAFBDarkest = 950 · #11363C
:root {
  --brand-50: #F4FAFB;
  --brand-100: #E8F5F7;
  --brand-200: #CCEBF0;
  --brand-300: #A4DFE9;
  --brand-400: #79d0df;
  --brand-500: #4ABFD4;
  --brand-600: #2FB0C6;
  --brand-700: #2792A5;
  --brand-800: #1F7584;
  --brand-900: #1B5660;
  --brand-950: #11363C;
  --brand: #79d0df;
  --brand-ink: #000000;
}

Colors that work with #79d0df

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#C0E6ED
Hairlines and dividers
Muted text#4B8F9B
Captions on the surface
Accent#A82431
Second voice, not a rival
Dark variant#195B67
Hover, pressed, headers
Light variant#EAF8FA
Selected rows, tints
Dark surface#142224
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 #79d0df

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
  • Card and section backgrounds
  • 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
  • White text placed on it
  • 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#DF8879
Analogous left#79DFBB
Analogous right#799DDF
Split-complement 1#DF799D
Split-complement 2#DFBB79
Triadic 1#DF79D0
Triadic 2#D0DF79
Tetradic#BB79DF

RGB percentages

Red47.5%
Green81.6%
Blue87.5%

CMYK percentages

Cyan45.7%
Magenta6.7%
Yellow0.0%
Key (black)12.5%

Color previews

#79d0df text on a black background

contrast 11.90:1

Card sample

#79d0df text on a white background

contrast 1.76:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #79d0df;
Background color
Panel with #79d0df background
background-color: #79d0df;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #79d0df;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(121, 208, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(121, 208, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #79d0df;
background: linear-gradient(135deg, #79d0df, #798CDF);

Monochromatic scale

Palettes built from #79d0df

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.

#79d0df 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
SurfacesBadgesHighlightsEmpty states
Print note

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

#79d0df, answered

What color is #79d0df?

#79d0df is a light vivid cyan, closest to Sky Blue (ΔE2000 6.2). It sits at 189° on the hue wheel with 61% saturation and 68% lightness, which reads as cool.

What is the RGB value of #79d0df?

rgb(121, 208, 223) — 121 red, 208 green and 223 blue out of 255, or 47.5% / 81.6% / 87.5% by channel.

Is #79d0df a light or a dark color?

It is a light color. Relative luminance is 0.5450 and perceived brightness is 74%, so black text on it reaches 11.90:1.

Should I use black or white text on #79d0df?

Black. It scores 11.90:1 against #79d0df, versus 1.76:1 for white — AAA at any size.

What is the complementary color of #79d0df?

#DF8879 sits directly opposite on the wheel. Softer options are the split-complements #DF799D and #DFBB79, which give the same contrast with far less vibration.

What colors go well with #79d0df?

For interface work: #F4FAFA as the surface, #C0E6ED for borders, #4B8F9B for secondary text, #A82431 as an accent and #195B67 for hover and pressed states. For a palette, the analogous pair #79DFBB and #799DDF stays calm, while #DF8879 is the loudest partner.

What is #79d0df in CMYK for printing?

cmyk(46%, 7%, 0%, 13%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #79d0df warm or cool?

Cool — it scores 91 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #79DFC9; nudged cooler, #78B7E1.

Work with #79d0df in the Color Lab