Skip to content
blue · cool

#53ade2

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

Token name suggestion: Signal Cobalt

RGB
83, 173, 226
HSL
202°, 71%, 61%
CMYK
63, 24, 0, 11
Luminance
0.3722

#53ade2 is a balanced vivid blue, 202° on the wheel and 97/100 on the cool side. Put black text on it (8.44:1). As text it scores 2.49:1 on white — use #1E7BB1 instead. Nearest name is Deep Sky Blue, nearest Tailwind family is sky.

hsl(202 71% 61%)rgb(83 173 226)Base step 500AAA inkCool

At a glance

Every number on this page in one read: what #53ade2 is made of, how bright it looks, and which way it leans.

Hex
#53ade2
Hue
202°
blue
Saturation
71%
vivid
Lightness
61%
balanced
Brightness
89%
HSV value
Perceived
63%
weighted brightness
Luminance
0.3722
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
8.44:1
Closest name
Deep Sky Blue
ΔE2000 6
Chroma
36.4
LCH, 0–130ish
OKLCH L
0.714
perceptual lightness
Tailwind
sky
500 · ΔE 3.9
Web-safe
#6699CC
nearest of 216
Where it sits
Hue202° of 360°
Saturation71%
Lightness61%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #53ade2.

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.

Luminance by channel
Red5%
Green80%
Blue15%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#53ade2
HEX (8-digit)#53ade2ff
RGBrgb(83, 173, 226)
RGBArgba(83, 173, 226, 1)
HSLhsl(202, 71%, 61%)
HSV / HSBhsv(202, 63%, 89%)
HWBhwb(202 33% 11%)
CMYKcmyk(63%, 24%, 0%, 11%)
LABlab(67.4 -11.0 -34.6)
LCHlch(67.4 36.4 252.4)
OKLCHoklch(0.714 0.116 237.3)
XYZ (D65)xyz(32.23, 37.21, 77.42)
Decimal5484002
Display P3color(display-p3 0.325 0.678 0.886)
Web-safe#6699CC

Copy-ready code

every platformclick to select
/* CSS */
color: #53ade2;
background-color: #53ade2;
/* CSS custom property */
--brand: #53ade2;
/* Tailwind (arbitrary) */
class="text-[#53ade2] bg-[#53ade2]"
/* SCSS */
$brand: #53ade2;
/* SwiftUI */
Color(red: 0.325, green: 0.678, blue: 0.886)
/* UIKit */
UIColor(red: 0.325, green: 0.678, blue: 0.886, alpha: 1)
/* Android XML */
<color name="brand">#53ADE2</color>
/* Android Compose */
Color(0xFF53ADE2)
/* Flutter */
Color(0xFF53ADE2)
/* Python / OpenCV (BGR) */
(226, 173, 83)
/* Python / PIL (RGB) */
(83, 173, 226)
/* Java AWT */
new Color(83, 173, 226)
/* .NET */
Color.FromArgb(255, 83, 173, 226)
/* OpenGL / Unity (0–1) */
(0.3255f, 0.6784f, 0.8863f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{83,173,226}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #53ade2 85%, white);
border-color: color-mix(in oklab, #53ade2 40%, transparent);
/* theme-aware in one line */
color: light-dark(#124C6D, #D3E4EE);
/* relative colour syntax */
--hover: hsl(from #53ade2 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F3F8FC;
  --brand-100: #E7F2F8;
  --brand-200: #C9E3F3;
  --brand-300: #9FD1EF;
  --brand-400: #6FBAE7;
  --brand-500: #53ade2;
  --brand-600: #2391D1;
  --brand-700: #1D79AF;
  --brand-800: #18618C;
  --brand-900: #154865;
  --brand-950: #0D2D3F;
  --brand: #53ade2;
  --brand-ink: #000000;
  --brand-surface: #F4F8FA;
  --brand-border: #C0DCED;
  --brand-hover: #359FDD;
  --brand-pressed: #228DCB;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141E24;
    --brand-ink: #D3E4EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3F8FC',
        100: '#E7F2F8',
        200: '#C9E3F3',
        300: '#9FD1EF',
        400: '#6FBAE7',
        500: '#53ade2',
        600: '#2391D1',
        700: '#1D79AF',
        800: '#18618C',
        900: '#154865',
        950: '#0D2D3F',
        DEFAULT: '#53ade2',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3F8FC,
  '100': #E7F2F8,
  '200': #C9E3F3,
  '300': #9FD1EF,
  '400': #6FBAE7,
  '500': #53ade2,
  '600': #2391D1,
  '700': #1D79AF,
  '800': #18618C,
  '900': #154865,
  '950': #0D2D3F,
);
$brand-base: #53ade2;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3F8FC", "$type": "color" },
      "100": { "$value": "#E7F2F8", "$type": "color" },
      "200": { "$value": "#C9E3F3", "$type": "color" },
      "300": { "$value": "#9FD1EF", "$type": "color" },
      "400": { "$value": "#6FBAE7", "$type": "color" },
      "500": { "$value": "#53ade2", "$type": "color" },
      "600": { "$value": "#2391D1", "$type": "color" },
      "700": { "$value": "#1D79AF", "$type": "color" },
      "800": { "$value": "#18618C", "$type": "color" },
      "900": { "$value": "#154865", "$type": "color" },
      "950": { "$value": "#0D2D3F", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

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 #53ade2 · 8.44:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.49:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.44:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #53ade2 as text scores 2.49:1 on white and 8.44:1 on black.
Best tinted ink on it, if plain black or white feels flat: #124C6D at 3.70:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#1E7BB1 · 4.64:1
AA on white−20% L
#1E7BB1
The quick fox
#175C86 · 7.21:1
AAA on white−30% L
#175C86
The quick fox
#53ade2 · 8.44:1
AA on blackalready passes
#53ade2
The quick fox
#53ade2 · 8.44:1
AAA on blackalready passes
#53ade2

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #309CDC is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#53ade2 on white: 2.49:1
AA ✗ fail · AA-large · AAA
Aa
#53ade2 on black: 8.44:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #53ade2 as text on that neutral, and that neutral as text on #53ade2.

NeutralRatioBoth directions
White2.49:1AaAa
Slate 502.38:1AaAa
Slate 1002.27:1AaAa
Slate 2002.02:1AaAa
Slate 3001.68:1AaAa
Slate 4001.03:1AaAa
Slate 5001.91:1AaAa
Slate 6003.05:1AaAa
Slate 7004.16:1AaAa
Slate 8005.88:1AaAa
Slate 9007.18:1AaAa
Black8.44:1AaAa
Colour vision deficiency
true color
protanopia · #94ACE4
deuteranopia · #819EE1
tritanopia · #00BBBF

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #53ade2 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
#C9E3F3
#9FD1EF
#6FBAE7
#53ade2
#2391D1
#1D79AF
#18618C
#154865
#0D2D3F
Base = 500Lightest = 50 · #F3F8FCDarkest = 950 · #0D2D3FText step on white = 700
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.029 237.3);
  --brand-100: oklch(0.94 0.046 237.3);
  --brand-200: oklch(0.88 0.069 237.3);
  --brand-300: oklch(0.80 0.090 237.3);
  --brand-400: oklch(0.72 0.106 237.3);
  --brand-500: oklch(0.64 0.116 237.3);
  --brand-600: oklch(0.56 0.116 237.3);
  --brand-700: oklch(0.48 0.109 237.3);
  --brand-800: oklch(0.40 0.097 237.3);
  --brand-900: oklch(0.32 0.081 237.3);
  --brand-950: oklch(0.24 0.064 237.3);
}

Colors that work with #53ade2

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#E6614F
Second voice, not a rival
Dark variant#124C6D
Hover, pressed, headers
Light variant#E9F5FB
Selected rows, tints
Dark surface#141E24
Dark-mode background
Hover#359FDD
One step down in lightness
Pressed#228DCB
Two steps down
Disabled#C9D5DC
Chroma pulled out
Focus ring#5CB8EE
Offset from the fill so it reads
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

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #53ade2

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
  • Chart series and data categories
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
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #124C6D
Safe as a 1px border on white
No — use #309CDC

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The mid lightness keeps it versatile in both themes.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight39/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

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#E28853
Analogous left#53E2CF
Analogous right#5366E2
Split-complement 1#E25366
Split-complement 2#E2CF53
Triadic 1#E253AD
Triadic 2#ADE253
Tetradic#CF53E2
On the wheel
Base+30°−30°+120°+240°+180°202°

#53ade2 sits at 202°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red32.5%
Green67.8%
Blue88.6%
R · 0–255
83
0x53
G · 0–255
173
0xad
B · 0–255
226
0xe2

CMYK percentages

Cyan63.3%
Magenta23.5%
Yellow0.0%
Key (black)11.4%

Total ink coverage is 98%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#53ade2 text on a black background

contrast 8.44:1

Card sample

#53ade2 text on a white background

contrast 2.49:1

Card sample

#53ade2 on grey

2.27:1

#53ade2 on its own surface

2.33:1

#53ade2 on its dark surface

6.80:1

CSS3 live lab

Text font color

The quick brown fox

color: #53ade2;
Background color
Panel with #53ade2 background
background-color: #53ade2;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #53ade2;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(83, 173, 226, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(83, 173, 226, 0.45);
Border & gradient
Gradient panel
border: 3px solid #53ade2;
background: linear-gradient(135deg, #53ade2, #5853E2);
Gradient text

Gradient headline

background: linear-gradient(90deg, #53ade2, #7C53E2);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #53ade2;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #53ade2;
caret-color: #53ade2;
Left rule
Pull quote or callout
border-left: 4px solid #53ade2;
Ring + tint
Selected chip
background: #E9F5FB;
box-shadow: inset 0 0 0 2px #53ade2;
Conic badge
68%
background: conic-gradient(#53ade2 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #53ade2 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(83, 173, 226, 0.5)
rgb(83 173 226 / 50%)
#53ade280
hsl(202 71% 61% / 50%)
color-mix(in srgb, #53ade2 50%, transparent)
Alpha8-digit hexFlat on white
10%#53ade21a#EEF7FC
20%#53ade233#DDEFF9
40%#53ade266#BADEF3
60%#53ade299#98CEEE
80%#53ade2cc#75BDE8

Gradients from #53ade2

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #87C6EB, #53ade2 45%, #124C6D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #53ade2, #4D39DE);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #53ade2, #E28853);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #A2D3EF 0%, #53ade2 45%, #124C6D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F8FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #7FE9D3 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #6D73E6 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #124C6D 0%, transparent 65%), #53ade2;

Monochromatic scale

Palettes built from #53ade2

Shades — darker

Tints — lighter

Tones — desaturated

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.

#53ade2 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.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 8.44:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#53ade2, answered

What color is #53ade2?

#53ade2 is a balanced vivid blue, closest to Deep Sky Blue (ΔE2000 6). It sits at 202° on the hue wheel with 71% saturation and 61% lightness, which reads as cool.

What is the RGB value of #53ade2?

rgb(83, 173, 226) — 83 red, 173 green and 226 blue out of 255, or 32.5% / 67.8% / 88.6% by channel.

What is #53ade2 in HSL and HSV?

hsl(202, 71%, 61%) and hsv(202, 63%, 89%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #53ade2 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3722 and perceived brightness is 63%, so black text on it reaches 8.44:1.

Should I use black or white text on #53ade2?

Black. It scores 8.44:1 against #53ade2, versus 2.49:1 for white — AAA at any size.

Is #53ade2 accessible on a white background?

#53ade2 on white scores 2.49:1, which fails WCAG AA at every size. Darken it to #1E7BB1 to reach 4.5:1, or #175C86 for 7:1.

What is the complementary color of #53ade2?

#E28853 sits directly opposite on the wheel. Softer options are the split-complements #E25366 and #E2CF53, which give the same contrast with far less vibration.

What colors go well with #53ade2?

For interface work: #F4F8FA as the surface, #C0DCED for borders, #4B7D9B for secondary text, #E6614F as an accent and #124C6D for hover and pressed states. For a palette, the analogous pair #53E2CF and #5366E2 stays calm, while #E28853 is the loudest partner.

What is #53ade2 in CMYK for printing?

cmyk(63%, 24%, 0%, 11%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #53ade2 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 #53E1E2; nudged cooler, #3B94E1.

Which Tailwind color is closest to #53ade2?

The sky family — its 500 step is #0ea5e9, ΔE2000 3.9 away. That is a visible difference, so define #53ade2 as a custom token rather than reaching for the built-in.

How do I use #53ade2 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#53ade2] or text-[#53ade2], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #53ade2 with 50% opacity?

rgba(83, 173, 226, 0.5), or #53ade280 in eight-digit hex. Over white that composites to #A9D6F1; over black, #2A5771.

Is #53ade2 a web-safe color?

No. The nearest web-safe colour is #6699CC, ΔE2000 7.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #53ade2 mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #53ade2?

The safest is same-hue elevation: linear-gradient(135deg, #87C6EB, #53ade2 45%, #124C6D). For more colour, a short hue run to #4D39DE keeps it rich without turning muddy.

Work with #53ade2 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #53ade2 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.