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#49c4fd

a balanced, electric cyan · cool · closest name: Deep Sky Blue

RGB
73, 196, 253
HSL
199°, 98%, 64%
CMYK
71, 23, 0, 1
Luminance
0.4799

At a glance

Every number on this page in one read: what #49c4fd is made of, how bright it looks, and which way it leans.

Hex
#49c4fd
Hue
199°
cyan
Saturation
98%
electric
Lightness
64%
balanced
Brightness
99%
HSV value
Perceived
70%
weighted brightness
Luminance
0.4799
WCAG relative
Temperature
Cool
95/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
10.60:1
Closest name
Deep Sky Blue
ΔE2000 2.3
Where it sits
Hue199° of 360°
Saturation98%
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#49c4fd
RGBrgb(73, 196, 253)
HSLhsl(199, 98%, 64%)
CMYKcmyk(71%, 23%, 0%, 1%)
LABlab(74.8 -16.1 -37.9)
LCHlch(74.8 41.1 247.0)
OKLCHoklch(0.776 0.134 232.5)
Decimal4834557
Display P3color(display-p3 0.286 0.769 0.992)

Copy-ready code

/* CSS */
color: #49c4fd;
background-color: #49c4fd;
/* Tailwind (arbitrary) */
class="text-[#49c4fd] bg-[#49c4fd]"
/* SCSS */
$brand: #49c4fd;
/* SwiftUI */
Color(red: 0.286, green: 0.769, blue: 0.992)
/* Android */
Color.parseColor("#49c4fd")
/* Flutter */
Color(0xFF49C4FD)
/* Python / OpenCV (BGR) */
(253, 196, 73)

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 #49c4fd · 10.60:1
Use #000000AAA at every size.
Aa
White text · 1.98:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.60:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #49c4fd as text scores 1.98:1 on white and 10.60:1 on black.

Accessibility — WCAG contrast

Aa
#49c4fd on white: 1.98:1
AA ✗ fail · AA-large · AAA
Aa
#49c4fd on black: 10.60:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #A8C2FF
deuteranopia · #8FB0FC
tritanopia · #00D3D7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #49c4fd 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.

#F1FAFD
#E3F4FC
#C1E9FB
#90DBFE
#49c4fd
#21B7FD
#03A6F2
#028BCA
#026FA1
#065174
#043349
Base = 400Lightest = 50 · #F1FAFDDarkest = 950 · #043349
:root {
  --brand-50: #F1FAFD;
  --brand-100: #E3F4FC;
  --brand-200: #C1E9FB;
  --brand-300: #90DBFE;
  --brand-400: #49c4fd;
  --brand-500: #21B7FD;
  --brand-600: #03A6F2;
  --brand-700: #028BCA;
  --brand-800: #026FA1;
  --brand-900: #065174;
  --brand-950: #043349;
  --brand: #49c4fd;
  --brand-ink: #000000;
}

Colors that work with #49c4fd

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#F4F8FA
Tinted page background
Border#C0DEED
Hairlines and dividers
Muted text#4B819B
Captions on the surface
Accent#CC0D00
Second voice, not a rival
Dark variant#01577E
Hover, pressed, headers
Light variant#E6F7FF
Selected rows, tints
Dark surface#141F24
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 #49c4fd

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#FD8249
Analogous left#49FDDC
Analogous right#496AFD
Split-complement 1#FD496A
Split-complement 2#FDDC49
Triadic 1#FD49C4
Triadic 2#C4FD49
Tetradic#DC49FD

RGB percentages

Red28.6%
Green76.9%
Blue99.2%

CMYK percentages

Cyan71.1%
Magenta22.5%
Yellow0.0%
Key (black)0.8%

Color previews

#49c4fd text on a black background

contrast 10.60:1

Card sample

#49c4fd text on a white background

contrast 1.98:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #49c4fd;
Background color
Panel with #49c4fd background
background-color: #49c4fd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #49c4fd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(73, 196, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(73, 196, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #49c4fd;
background: linear-gradient(135deg, #49c4fd, #494CFD);

Monochromatic scale

Palettes built from #49c4fd

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.

#49c4fd 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.

#49c4fd, answered

What color is #49c4fd?

#49c4fd is a balanced electric cyan, closest to Deep Sky Blue (ΔE2000 2.3). It sits at 199° on the hue wheel with 98% saturation and 64% lightness, which reads as cool.

What is the RGB value of #49c4fd?

rgb(73, 196, 253) — 73 red, 196 green and 253 blue out of 255, or 28.6% / 76.9% / 99.2% by channel.

Is #49c4fd a light or a dark color?

It is a mid-tone. Relative luminance is 0.4799 and perceived brightness is 70%, so black text on it reaches 10.60:1.

Should I use black or white text on #49c4fd?

Black. It scores 10.60:1 against #49c4fd, versus 1.98:1 for white — AAA at any size.

What is the complementary color of #49c4fd?

#FD8249 sits directly opposite on the wheel. Softer options are the split-complements #FD496A and #FDDC49, which give the same contrast with far less vibration.

What colors go well with #49c4fd?

For interface work: #F4F8FA as the surface, #C0DEED for borders, #4B819B for secondary text, #CC0D00 as an accent and #01577E for hover and pressed states. For a palette, the analogous pair #49FDDC and #496AFD stays calm, while #FD8249 is the loudest partner.

What is #49c4fd in CMYK for printing?

cmyk(71%, 23%, 0%, 1%). 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 #49c4fd 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 #49FDF4; nudged cooler, #47B0FF.

Work with #49c4fd in the Color Lab