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#b5d2f2

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

RGB
181, 210, 242
HSL
212°, 70%, 83%
CMYK
25, 13, 0, 5
Luminance
0.6233

At a glance

Every number on this page in one read: what #b5d2f2 is made of, how bright it looks, and which way it leans.

Hex
#b5d2f2
Hue
212°
blue
Saturation
70%
vivid
Lightness
83%
light
Brightness
95%
HSV value
Perceived
81%
weighted brightness
Luminance
0.6233
WCAG relative
Temperature
Cool
99/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
13.47:1
Closest name
Light Steel Blue
ΔE2000 4.1
Where it sits
Hue212° of 360°
Saturation70%
Lightness83%
Temperature
Warm ← → Cool99% 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#b5d2f2
RGBrgb(181, 210, 242)
HSLhsl(212, 70%, 83%)
CMYKcmyk(25%, 13%, 0%, 5%)
LABlab(83.1 -2.7 -18.9)
LCHlch(83.1 19.1 261.9)
OKLCHoklch(0.853 0.055 251.0)
Decimal11916018
Display P3color(display-p3 0.710 0.824 0.949)

Copy-ready code

/* CSS */
color: #b5d2f2;
background-color: #b5d2f2;
/* Tailwind (arbitrary) */
class="text-[#b5d2f2] bg-[#b5d2f2]"
/* SCSS */
$brand: #b5d2f2;
/* SwiftUI */
Color(red: 0.710, green: 0.824, blue: 0.949)
/* Android */
Color.parseColor("#b5d2f2")
/* Flutter */
Color(0xFFB5D2F2)
/* Python / OpenCV (BGR) */
(242, 210, 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 #b5d2f2 · 13.47:1
Use #000000AAA at every size.
Aa
White text · 1.56:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.47:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b5d2f2 as text scores 1.56:1 on white and 13.47:1 on black.

Accessibility — WCAG contrast

Aa
#b5d2f2 on white: 1.56:1
AA ✗ fail · AA-large · AAA
Aa
#b5d2f2 on black: 13.47:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #C6D2F4
deuteranopia · #BFCCF1
tritanopia · #A4D9DC

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b5d2f2 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.

#F3F7FC
#E7EFF8
#b5d2f2
#A0C5EE
#70A8E6
#408BDD
#2576D0
#1E62AE
#184F8B
#163B65
#0E253F
Base = 200Lightest = 50 · #F3F7FCDarkest = 950 · #0E253F
:root {
  --brand-50: #F3F7FC;
  --brand-100: #E7EFF8;
  --brand-200: #b5d2f2;
  --brand-300: #A0C5EE;
  --brand-400: #70A8E6;
  --brand-500: #408BDD;
  --brand-600: #2576D0;
  --brand-700: #1E62AE;
  --brand-800: #184F8B;
  --brand-900: #163B65;
  --brand-950: #0E253F;
  --brand: #b5d2f2;
  --brand-ink: #000000;
}

Colors that work with #b5d2f2

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#F4F7FA
Tinted page background
Border#C0D5ED
Hairlines and dividers
Muted text#4B719B
Captions on the surface
Accent#B2441A
Second voice, not a rival
Dark variant#133E6C
Hover, pressed, headers
Light variant#E9F2FB
Selected rows, tints
Dark surface#141C24
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 #b5d2f2

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#F2D5B5
Analogous left#B5F0F2
Analogous right#B6B5F2
Split-complement 1#F2B6B5
Split-complement 2#F0F2B5
Triadic 1#F2B5D2
Triadic 2#D2F2B5
Tetradic#F2B5F0

RGB percentages

Red71.0%
Green82.4%
Blue94.9%

CMYK percentages

Cyan25.2%
Magenta13.2%
Yellow0.0%
Key (black)5.1%

Color previews

#b5d2f2 text on a black background

contrast 13.47:1

Card sample

#b5d2f2 text on a white background

contrast 1.56:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b5d2f2;
Background color
Panel with #b5d2f2 background
background-color: #b5d2f2;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b5d2f2;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(181, 210, 242, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(181, 210, 242, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b5d2f2;
background: linear-gradient(135deg, #b5d2f2, #C1B5F2);

Monochromatic scale

Palettes built from #b5d2f2

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.

#b5d2f2 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.

#b5d2f2, answered

What color is #b5d2f2?

#b5d2f2 is a light vivid blue, closest to Light Steel Blue (ΔE2000 4.1). It sits at 212° on the hue wheel with 70% saturation and 83% lightness, which reads as cool.

What is the RGB value of #b5d2f2?

rgb(181, 210, 242) — 181 red, 210 green and 242 blue out of 255, or 71% / 82.4% / 94.9% by channel.

Is #b5d2f2 a light or a dark color?

It is a light color. Relative luminance is 0.6233 and perceived brightness is 81%, so black text on it reaches 13.47:1.

Should I use black or white text on #b5d2f2?

Black. It scores 13.47:1 against #b5d2f2, versus 1.56:1 for white — AAA at any size.

What is the complementary color of #b5d2f2?

#F2D5B5 sits directly opposite on the wheel. Softer options are the split-complements #F2B6B5 and #F0F2B5, which give the same contrast with far less vibration.

What colors go well with #b5d2f2?

For interface work: #F4F7FA as the surface, #C0D5ED for borders, #4B719B for secondary text, #B2441A as an accent and #133E6C for hover and pressed states. For a palette, the analogous pair #B5F0F2 and #B6B5F2 stays calm, while #F2D5B5 is the loudest partner.

What is #b5d2f2 in CMYK for printing?

cmyk(25%, 13%, 0%, 5%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #b5d2f2 warm or cool?

Cool — it scores 99 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #B5BBF2; nudged cooler, #9EC4EF.

Work with #b5d2f2 in the Color Lab