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#b3d4eb

a light, vivid blue · cool · closest name: Light Blue

RGB
179, 212, 235
HSL
205°, 58%, 81%
CMYK
24, 10, 0, 8
Luminance
0.6267

At a glance

Every number on this page in one read: what #b3d4eb is made of, how bright it looks, and which way it leans.

Hex
#b3d4eb
Hue
205°
blue
Saturation
58%
vivid
Lightness
81%
light
Brightness
92%
HSV value
Perceived
81%
weighted brightness
Luminance
0.6267
WCAG relative
Temperature
Cool
98/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
13.53:1
Closest name
Light Blue
ΔE2000 5.4
Where it sits
Hue205° of 360°
Saturation58%
Lightness81%
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#b3d4eb
RGBrgb(179, 212, 235)
HSLhsl(205, 58%, 81%)
CMYKcmyk(24%, 10%, 0%, 8%)
LABlab(83.3 -5.9 -14.9)
LCHlch(83.3 16.0 248.3)
OKLCHoklch(0.853 0.048 238.5)
Decimal11785451
Display P3color(display-p3 0.702 0.831 0.922)

Copy-ready code

/* CSS */
color: #b3d4eb;
background-color: #b3d4eb;
/* Tailwind (arbitrary) */
class="text-[#b3d4eb] bg-[#b3d4eb]"
/* SCSS */
$brand: #b3d4eb;
/* SwiftUI */
Color(red: 0.702, green: 0.831, blue: 0.922)
/* Android */
Color.parseColor("#b3d4eb")
/* Flutter */
Color(0xFFB3D4EB)
/* Python / OpenCV (BGR) */
(235, 212, 179)

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 #b3d4eb · 13.53:1
Use #000000AAA at every size.
Aa
White text · 1.55:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.53:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b3d4eb as text scores 1.55:1 on white and 13.53:1 on black.

Accessibility — WCAG contrast

Aa
#b3d4eb on white: 1.55:1
AA ✗ fail · AA-large · AAA
Aa
#b3d4eb on black: 13.53:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #CAD3EC
deuteranopia · #C3CDEB
tritanopia · #A3DADB

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b3d4eb is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F4F8FB
#E9F1F7
#CDE1EF
#b3d4eb
#7AB4DC
#4D9BD0
#3387C2
#2B71A1
#225A81
#1C435E
#122A3B
Base = 300Lightest = 50 · #F4F8FBDarkest = 950 · #122A3B
:root {
  --brand-50: #F4F8FB;
  --brand-100: #E9F1F7;
  --brand-200: #CDE1EF;
  --brand-300: #b3d4eb;
  --brand-400: #7AB4DC;
  --brand-500: #4D9BD0;
  --brand-600: #3387C2;
  --brand-700: #2B71A1;
  --brand-800: #225A81;
  --brand-900: #1C435E;
  --brand-950: #122A3B;
  --brand: #b3d4eb;
  --brand-ink: #000000;
}

Colors that work with #b3d4eb

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#A63C26
Second voice, not a rival
Dark variant#1B4665
Hover, pressed, headers
Light variant#EBF4FA
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 #b3d4eb

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#EBCAB3
Analogous left#B3EBE6
Analogous right#B3B8EB
Split-complement 1#EBB3B8
Split-complement 2#EBE6B3
Triadic 1#EBB3D4
Triadic 2#D4EBB3
Tetradic#E6B3EB

RGB percentages

Red70.2%
Green83.1%
Blue92.2%

CMYK percentages

Cyan23.8%
Magenta9.8%
Yellow0.0%
Key (black)7.8%

Color previews

#b3d4eb text on a black background

contrast 13.53:1

Card sample

#b3d4eb text on a white background

contrast 1.55:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b3d4eb;
Background color
Panel with #b3d4eb background
background-color: #b3d4eb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b3d4eb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(179, 212, 235, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(179, 212, 235, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b3d4eb;
background: linear-gradient(135deg, #b3d4eb, #B7B3EB);

Monochromatic scale

Palettes built from #b3d4eb

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.

#b3d4eb 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

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

#b3d4eb, answered

What color is #b3d4eb?

#b3d4eb is a light vivid blue, closest to Light Blue (ΔE2000 5.4). It sits at 205° on the hue wheel with 58% saturation and 81% lightness, which reads as cool.

What is the RGB value of #b3d4eb?

rgb(179, 212, 235) — 179 red, 212 green and 235 blue out of 255, or 70.2% / 83.1% / 92.2% by channel.

Is #b3d4eb a light or a dark color?

It is a light color. Relative luminance is 0.6267 and perceived brightness is 81%, so black text on it reaches 13.53:1.

Should I use black or white text on #b3d4eb?

Black. It scores 13.53:1 against #b3d4eb, versus 1.55:1 for white — AAA at any size.

What is the complementary color of #b3d4eb?

#EBCAB3 sits directly opposite on the wheel. Softer options are the split-complements #EBB3B8 and #EBE6B3, which give the same contrast with far less vibration.

What colors go well with #b3d4eb?

For interface work: #F4F8FA as the surface, #C0DAED for borders, #4B7A9B for secondary text, #A63C26 as an accent and #1B4665 for hover and pressed states. For a palette, the analogous pair #B3EBE6 and #B3B8EB stays calm, while #EBCAB3 is the loudest partner.

What is #b3d4eb in CMYK for printing?

cmyk(24%, 10%, 0%, 8%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b3d4eb 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 #B3E9EB; nudged cooler, #9EC2E7.

Work with #b3d4eb in the Color Lab