Skip to content

#53afe5

a balanced, vivid blue · cool · closest name: Deep Sky Blue

RGB
83, 175, 229
HSL
202°, 74%, 61%
CMYK
64, 24, 0, 10
Luminance
0.3816

At a glance

Every number on this page in one read: what #53afe5 is made of, how bright it looks, and which way it leans.

Hex
#53afe5
Hue
202°
blue
Saturation
74%
vivid
Lightness
61%
balanced
Brightness
90%
HSV value
Perceived
63%
weighted brightness
Luminance
0.3816
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
8.63:1
Closest name
Deep Sky Blue
ΔE2000 5.5
Where it sits
Hue202° of 360°
Saturation74%
Lightness61%
Temperature
Warm ← → Cool97% 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#53afe5
RGBrgb(83, 175, 229)
HSLhsl(202, 74%, 61%)
CMYKcmyk(64%, 24%, 0%, 10%)
LABlab(68.1 -11.1 -35.2)
LCHlch(68.1 36.9 252.5)
OKLCHoklch(0.720 0.117 237.3)
Decimal5484517
Display P3color(display-p3 0.325 0.686 0.898)

Copy-ready code

/* CSS */
color: #53afe5;
background-color: #53afe5;
/* Tailwind (arbitrary) */
class="text-[#53afe5] bg-[#53afe5]"
/* SCSS */
$brand: #53afe5;
/* SwiftUI */
Color(red: 0.325, green: 0.686, blue: 0.898)
/* Android */
Color.parseColor("#53afe5")
/* Flutter */
Color(0xFF53AFE5)
/* Python / OpenCV (BGR) */
(229, 175, 83)

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 #53afe5 · 8.63:1
Use #000000AAA at every size.
Aa
White text · 2.43:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.63:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #53afe5 as text scores 2.43:1 on white and 8.63:1 on black.

Accessibility — WCAG contrast

Aa
#53afe5 on white: 2.43:1
AA ✗ fail · AA-large · AAA
Aa
#53afe5 on black: 8.63:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #96AEE8
deuteranopia · #82A0E4
tritanopia · #00BDC1

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #53afe5 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3F8FC
#E7F2F8
#C8E3F3
#9ED2F0
#6DBBE9
#53afe5
#2092D5
#1B7AB1
#15618E
#144867
#0C2D40
Base = 500Lightest = 50 · #F3F8FCDarkest = 950 · #0C2D40
:root {
  --brand-50: #F3F8FC;
  --brand-100: #E7F2F8;
  --brand-200: #C8E3F3;
  --brand-300: #9ED2F0;
  --brand-400: #6DBBE9;
  --brand-500: #53afe5;
  --brand-600: #2092D5;
  --brand-700: #1B7AB1;
  --brand-800: #15618E;
  --brand-900: #144867;
  --brand-950: #0C2D40;
  --brand: #53afe5;
  --brand-ink: #000000;
}

Colors that work with #53afe5

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#C0DCED
Hairlines and dividers
Muted text#4B7D9B
Captions on the surface
Accent#E9624F
Second voice, not a rival
Dark variant#114C6F
Hover, pressed, headers
Light variant#E9F5FC
Selected rows, tints
Dark surface#141E24
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 #53afe5

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
  • 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#E58953
Analogous left#53E5D2
Analogous right#5366E5
Split-complement 1#E55366
Split-complement 2#E5D253
Triadic 1#E553AF
Triadic 2#AFE553
Tetradic#D253E5

RGB percentages

Red32.5%
Green68.6%
Blue89.8%

CMYK percentages

Cyan63.8%
Magenta23.6%
Yellow0.0%
Key (black)10.2%

Color previews

#53afe5 text on a black background

contrast 8.63:1

Card sample

#53afe5 text on a white background

contrast 2.43:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #53afe5;
Background color
Panel with #53afe5 background
background-color: #53afe5;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #53afe5;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(83, 175, 229, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(83, 175, 229, 0.45);
Border & gradient
Gradient panel
border: 3px solid #53afe5;
background: linear-gradient(135deg, #53afe5, #5853E5);

Monochromatic scale

Palettes built from #53afe5

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.

#53afe5 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
ButtonsLinksFocus statesCharts
Print note

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

#53afe5, answered

What color is #53afe5?

#53afe5 is a balanced vivid blue, closest to Deep Sky Blue (ΔE2000 5.5). It sits at 202° on the hue wheel with 74% saturation and 61% lightness, which reads as cool.

What is the RGB value of #53afe5?

rgb(83, 175, 229) — 83 red, 175 green and 229 blue out of 255, or 32.5% / 68.6% / 89.8% by channel.

Is #53afe5 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3816 and perceived brightness is 63%, so black text on it reaches 8.63:1.

Should I use black or white text on #53afe5?

Black. It scores 8.63:1 against #53afe5, versus 2.43:1 for white — AAA at any size.

What is the complementary color of #53afe5?

#E58953 sits directly opposite on the wheel. Softer options are the split-complements #E55366 and #E5D253, which give the same contrast with far less vibration.

What colors go well with #53afe5?

For interface work: #F4F8FA as the surface, #C0DCED for borders, #4B7D9B for secondary text, #E9624F as an accent and #114C6F for hover and pressed states. For a palette, the analogous pair #53E5D2 and #5366E5 stays calm, while #E58953 is the loudest partner.

What is #53afe5 in CMYK for printing?

cmyk(64%, 24%, 0%, 10%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #53afe5 warm or cool?

Cool — it scores 97 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #53E4E5; nudged cooler, #3B96E4.

Work with #53afe5 in the Color Lab