Skip to content

#b5bdf6

a light, electric blue · cool · closest name: Light Steel Blue

RGB
181, 189, 246
HSL
233°, 78%, 84%
CMYK
26, 23, 0, 4
Luminance
0.5287

At a glance

Every number on this page in one read: what #b5bdf6 is made of, how bright it looks, and which way it leans.

Hex
#b5bdf6
Hue
233°
blue
Saturation
78%
electric
Lightness
84%
light
Brightness
96%
HSV value
Perceived
76%
weighted brightness
Luminance
0.5287
WCAG relative
Temperature
Cool
87/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
11.57:1
Closest name
Light Steel Blue
ΔE2000 8.1
Where it sits
Hue233° of 360°
Saturation78%
Lightness84%
Temperature
Warm ← → Cool87% 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#b5bdf6
RGBrgb(181, 189, 246)
HSLhsl(233, 78%, 84%)
CMYKcmyk(26%, 23%, 0%, 4%)
LABlab(77.8 9.5 -29.1)
LCHlch(77.8 30.6 288.1)
OKLCHoklch(0.812 0.081 278.2)
Decimal11910646
Display P3color(display-p3 0.710 0.741 0.965)

Copy-ready code

/* CSS */
color: #b5bdf6;
background-color: #b5bdf6;
/* Tailwind (arbitrary) */
class="text-[#b5bdf6] bg-[#b5bdf6]"
/* SCSS */
$brand: #b5bdf6;
/* SwiftUI */
Color(red: 0.710, green: 0.741, blue: 0.965)
/* Android */
Color.parseColor("#b5bdf6")
/* Flutter */
Color(0xFFB5BDF6)
/* Python / OpenCV (BGR) */
(246, 189, 181)

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 #b5bdf6 · 11.57:1
Use #000000AAA at every size.
Aa
White text · 1.81:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.57:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b5bdf6 as text scores 1.81:1 on white and 11.57:1 on black.

Accessibility — WCAG contrast

Aa
#b5bdf6 on white: 1.81:1
AA ✗ fail · AA-large · AAA
Aa
#b5bdf6 on black: 11.57:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #ADC3F9
deuteranopia · #A9BEF5
tritanopia · #A5C7D0

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b5bdf6 is pinned to step 200; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3F4FC
#E6E9F9
#b5bdf6
#9BA6F3
#6979ED
#374DE7
#1B32DA
#162AB6
#122191
#111C69
#0B1142
Base = 200Lightest = 50 · #F3F4FCDarkest = 950 · #0B1142
:root {
  --brand-50: #F3F4FC;
  --brand-100: #E6E9F9;
  --brand-200: #b5bdf6;
  --brand-300: #9BA6F3;
  --brand-400: #6979ED;
  --brand-500: #374DE7;
  --brand-600: #1B32DA;
  --brand-700: #162AB6;
  --brand-800: #122191;
  --brand-900: #111C69;
  --brand-950: #0B1142;
  --brand: #b5bdf6;
  --brand-ink: #000000;
}

Colors that work with #b5bdf6

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#F4F5FA
Tinted page background
Border#C0C5ED
Hairlines and dividers
Muted text#4B549B
Captions on the surface
Accent#BB7B11
Second voice, not a rival
Dark variant#0E1A72
Hover, pressed, headers
Light variant#E8EBFC
Selected rows, tints
Dark surface#141624
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 #b5bdf6

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#F6EEB5
Analogous left#B5DDF6
Analogous right#CDB5F6
Split-complement 1#F6CDB5
Split-complement 2#DDF6B5
Triadic 1#F6B5BD
Triadic 2#BDF6B5
Tetradic#F6B5DD

RGB percentages

Red71.0%
Green74.1%
Blue96.5%

CMYK percentages

Cyan26.4%
Magenta23.2%
Yellow0.0%
Key (black)3.5%

Color previews

#b5bdf6 text on a black background

contrast 11.57:1

Card sample

#b5bdf6 text on a white background

contrast 1.81:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b5bdf6;
Background color
Panel with #b5bdf6 background
background-color: #b5bdf6;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b5bdf6;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(181, 189, 246, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(181, 189, 246, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b5bdf6;
background: linear-gradient(135deg, #b5bdf6, #D8B5F6);

Monochromatic scale

Palettes built from #b5bdf6

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.

#b5bdf6 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.

#b5bdf6, answered

What color is #b5bdf6?

#b5bdf6 is a light electric blue, closest to Light Steel Blue (ΔE2000 8.1). It sits at 233° on the hue wheel with 78% saturation and 84% lightness, which reads as cool.

What is the RGB value of #b5bdf6?

rgb(181, 189, 246) — 181 red, 189 green and 246 blue out of 255, or 71% / 74.1% / 96.5% by channel.

Is #b5bdf6 a light or a dark color?

It is a light color. Relative luminance is 0.5287 and perceived brightness is 76%, so black text on it reaches 11.57:1.

Should I use black or white text on #b5bdf6?

Black. It scores 11.57:1 against #b5bdf6, versus 1.81:1 for white — AAA at any size.

What is the complementary color of #b5bdf6?

#F6EEB5 sits directly opposite on the wheel. Softer options are the split-complements #F6CDB5 and #DDF6B5, which give the same contrast with far less vibration.

What colors go well with #b5bdf6?

For interface work: #F4F5FA as the surface, #C0C5ED for borders, #4B549B for secondary text, #BB7B11 as an accent and #0E1A72 for hover and pressed states. For a palette, the analogous pair #B5DDF6 and #CDB5F6 stays calm, while #F6EEB5 is the loudest partner.

What is #b5bdf6 in CMYK for printing?

cmyk(26%, 23%, 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 #b5bdf6 warm or cool?

Cool — it scores 87 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C5B5F6; nudged cooler, #B4CEF7.

Work with #b5bdf6 in the Color Lab