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#73aef4

a light, electric blue · cool · closest name: Cornflower Blue

RGB
115, 174, 244
HSL
213°, 85%, 70%
CMYK
53, 29, 0, 4
Luminance
0.4045

At a glance

Every number on this page in one read: what #73aef4 is made of, how bright it looks, and which way it leans.

Hex
#73aef4
Hue
213°
blue
Saturation
85%
electric
Lightness
70%
light
Brightness
96%
HSV value
Perceived
66%
weighted brightness
Luminance
0.4045
WCAG relative
Temperature
Cool
99/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
9.09:1
Closest name
Cornflower Blue
ΔE2000 7.3
Where it sits
Hue213° of 360°
Saturation85%
Lightness70%
Temperature
Warm ← → Cool99% 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#73aef4
RGBrgb(115, 174, 244)
HSLhsl(213, 85%, 70%)
CMYKcmyk(53%, 29%, 0%, 4%)
LABlab(69.8 0.3 -40.7)
LCHlch(69.8 40.7 270.4)
OKLCHoklch(0.739 0.119 253.5)
Decimal7581428
Display P3color(display-p3 0.451 0.682 0.957)

Copy-ready code

/* CSS */
color: #73aef4;
background-color: #73aef4;
/* Tailwind (arbitrary) */
class="text-[#73aef4] bg-[#73aef4]"
/* SCSS */
$brand: #73aef4;
/* SwiftUI */
Color(red: 0.451, green: 0.682, blue: 0.957)
/* Android */
Color.parseColor("#73aef4")
/* Flutter */
Color(0xFF73AEF4)
/* Python / OpenCV (BGR) */
(244, 174, 115)

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 #73aef4 · 9.09:1
Use #000000AAA at every size.
Aa
White text · 2.31:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.09:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #73aef4 as text scores 2.31:1 on white and 9.09:1 on black.

Accessibility — WCAG contrast

Aa
#73aef4 on white: 2.31:1
AA ✗ fail · AA-large · AAA
Aa
#73aef4 on black: 9.09:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #92B1F7
deuteranopia · #81A5F3
tritanopia · #28BEC7

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #73aef4 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.

#F2F7FD
#E5EFFA
#C5DCF7
#97C3F7
#73aef4
#2F86EF
#1271E3
#0F5EBD
#0C4C97
#0D396D
#082444
Base = 400Lightest = 50 · #F2F7FDDarkest = 950 · #082444
:root {
  --brand-50: #F2F7FD;
  --brand-100: #E5EFFA;
  --brand-200: #C5DCF7;
  --brand-300: #97C3F7;
  --brand-400: #73aef4;
  --brand-500: #2F86EF;
  --brand-600: #1271E3;
  --brand-700: #0F5EBD;
  --brand-800: #0C4C97;
  --brand-900: #0D396D;
  --brand-950: #082444;
  --brand: #73aef4;
  --brand-ink: #000000;
}

Colors that work with #73aef4

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#F4F7FA
Tinted page background
Border#C0D4ED
Hairlines and dividers
Muted text#4B6F9B
Captions on the surface
Accent#C1410B
Second voice, not a rival
Dark variant#093B76
Hover, pressed, headers
Light variant#E7F1FD
Selected rows, tints
Dark surface#141B24
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 #73aef4

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
  • 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#F4B973
Analogous left#73EEF4
Analogous right#7973F4
Split-complement 1#F47973
Split-complement 2#EEF473
Triadic 1#F473AE
Triadic 2#AEF473
Tetradic#F473EE

RGB percentages

Red45.1%
Green68.2%
Blue95.7%

CMYK percentages

Cyan52.9%
Magenta28.7%
Yellow0.0%
Key (black)4.3%

Color previews

#73aef4 text on a black background

contrast 9.09:1

Card sample

#73aef4 text on a white background

contrast 2.31:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #73aef4;
Background color
Panel with #73aef4 background
background-color: #73aef4;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #73aef4;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(115, 174, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(115, 174, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #73aef4;
background: linear-gradient(135deg, #73aef4, #8E73F4);

Monochromatic scale

Palettes built from #73aef4

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.

#73aef4 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#73aef4, answered

What color is #73aef4?

#73aef4 is a light electric blue, closest to Cornflower Blue (ΔE2000 7.3). It sits at 213° on the hue wheel with 85% saturation and 70% lightness, which reads as cool.

What is the RGB value of #73aef4?

rgb(115, 174, 244) — 115 red, 174 green and 244 blue out of 255, or 45.1% / 68.2% / 95.7% by channel.

Is #73aef4 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4045 and perceived brightness is 66%, so black text on it reaches 9.09:1.

Should I use black or white text on #73aef4?

Black. It scores 9.09:1 against #73aef4, versus 2.31:1 for white — AAA at any size.

What is the complementary color of #73aef4?

#F4B973 sits directly opposite on the wheel. Softer options are the split-complements #F47973 and #EEF473, which give the same contrast with far less vibration.

What colors go well with #73aef4?

For interface work: #F4F7FA as the surface, #C0D4ED for borders, #4B6F9B for secondary text, #C1410B as an accent and #093B76 for hover and pressed states. For a palette, the analogous pair #73EEF4 and #7973F4 stays calm, while #F4B973 is the loudest partner.

What is #73aef4 in CMYK for printing?

cmyk(53%, 29%, 0%, 4%). 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 #73aef4 warm or cool?

Cool — it scores 99 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #737FF4; nudged cooler, #5AA2F4.

Work with #73aef4 in the Color Lab