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#5bade5

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

RGB
91, 173, 229
HSL
204°, 73%, 63%
CMYK
60, 25, 0, 10
Luminance
0.3777

At a glance

Every number on this page in one read: what #5bade5 is made of, how bright it looks, and which way it leans.

Hex
#5bade5
Hue
204°
blue
Saturation
73%
vivid
Lightness
63%
balanced
Brightness
90%
HSV value
Perceived
63%
weighted brightness
Luminance
0.3777
WCAG relative
Temperature
Cool
98/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
8.55:1
Closest name
Deep Sky Blue
ΔE2000 6.8
Where it sits
Hue204° of 360°
Saturation73%
Lightness63%
Temperature
Warm ← → Cool98% 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#5bade5
RGBrgb(91, 173, 229)
HSLhsl(204, 73%, 63%)
CMYKcmyk(60%, 25%, 0%, 10%)
LABlab(67.8 -8.6 -35.6)
LCHlch(67.8 36.7 256.4)
OKLCHoklch(0.719 0.115 240.7)
Decimal6008293
Display P3color(display-p3 0.357 0.678 0.898)

Copy-ready code

/* CSS */
color: #5bade5;
background-color: #5bade5;
/* Tailwind (arbitrary) */
class="text-[#5bade5] bg-[#5bade5]"
/* SCSS */
$brand: #5bade5;
/* SwiftUI */
Color(red: 0.357, green: 0.678, blue: 0.898)
/* Android */
Color.parseColor("#5bade5")
/* Flutter */
Color(0xFF5BADE5)
/* Python / OpenCV (BGR) */
(229, 173, 91)

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 #5bade5 · 8.55:1
Use #000000AAA at every size.
Aa
White text · 2.46:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.55:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #5bade5 as text scores 2.46:1 on white and 8.55:1 on black.

Accessibility — WCAG contrast

Aa
#5bade5 on white: 2.46:1
AA ✗ fail · AA-large · AAA
Aa
#5bade5 on black: 8.55:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #94ADE8
deuteranopia · #819FE4
tritanopia · #00BBC0

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #5bade5 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.

#F3F8FC
#E7F1F8
#C9E2F3
#9ECFF0
#5bade5
#3D9EE0
#228BD3
#1C74B0
#165D8D
#144566
#0D2B40
Base = 400Lightest = 50 · #F3F8FCDarkest = 950 · #0D2B40
:root {
  --brand-50: #F3F8FC;
  --brand-100: #E7F1F8;
  --brand-200: #C9E2F3;
  --brand-300: #9ECFF0;
  --brand-400: #5bade5;
  --brand-500: #3D9EE0;
  --brand-600: #228BD3;
  --brand-700: #1C74B0;
  --brand-800: #165D8D;
  --brand-900: #144566;
  --brand-950: #0D2B40;
  --brand: #5bade5;
  --brand-ink: #000000;
}

Colors that work with #5bade5

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#C0DAED
Hairlines and dividers
Muted text#4B7A9B
Captions on the surface
Accent#B43018
Second voice, not a rival
Dark variant#11496E
Hover, pressed, headers
Light variant#E9F4FC
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 #5bade5

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#E5935B
Analogous left#5BE5D8
Analogous right#5B68E5
Split-complement 1#E55B68
Split-complement 2#E5D85B
Triadic 1#E55BAD
Triadic 2#ADE55B
Tetradic#D85BE5

RGB percentages

Red35.7%
Green67.8%
Blue89.8%

CMYK percentages

Cyan60.3%
Magenta24.5%
Yellow0.0%
Key (black)10.2%

Color previews

#5bade5 text on a black background

contrast 8.55:1

Card sample

#5bade5 text on a white background

contrast 2.46:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #5bade5;
Background color
Panel with #5bade5 background
background-color: #5bade5;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #5bade5;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(91, 173, 229, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(91, 173, 229, 0.45);
Border & gradient
Gradient panel
border: 3px solid #5bade5;
background: linear-gradient(135deg, #5bade5, #655BE5);

Monochromatic scale

Palettes built from #5bade5

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.

#5bade5 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.

#5bade5, answered

What color is #5bade5?

#5bade5 is a balanced vivid blue, closest to Deep Sky Blue (ΔE2000 6.8). It sits at 204° on the hue wheel with 73% saturation and 63% lightness, which reads as cool.

What is the RGB value of #5bade5?

rgb(91, 173, 229) — 91 red, 173 green and 229 blue out of 255, or 35.7% / 67.8% / 89.8% by channel.

Is #5bade5 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3777 and perceived brightness is 63%, so black text on it reaches 8.55:1.

Should I use black or white text on #5bade5?

Black. It scores 8.55:1 against #5bade5, versus 2.46:1 for white — AAA at any size.

What is the complementary color of #5bade5?

#E5935B sits directly opposite on the wheel. Softer options are the split-complements #E55B68 and #E5D85B, which give the same contrast with far less vibration.

What colors go well with #5bade5?

For interface work: #F4F8FA as the surface, #C0DAED for borders, #4B7A9B for secondary text, #B43018 as an accent and #11496E for hover and pressed states. For a palette, the analogous pair #5BE5D8 and #5B68E5 stays calm, while #E5935B is the loudest partner.

What is #5bade5 in CMYK for printing?

cmyk(60%, 25%, 0%, 10%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #5bade5 warm or cool?

Cool — it scores 98 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #5BE0E5; nudged cooler, #4397E4.

Work with #5bade5 in the Color Lab