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#b3feff

a pale, electric cyan · cool · closest name: Pale Turquoise

RGB
179, 254, 255
HSL
181°, 100%, 85%
CMYK
30, 0, 0, 0
Luminance
0.8769

At a glance

Every number on this page in one read: what #b3feff is made of, how bright it looks, and which way it leans.

Hex
#b3feff
Hue
181°
cyan
Saturation
100%
electric
Lightness
85%
pale
Brightness
100%
HSV value
Perceived
92%
weighted brightness
Luminance
0.8769
WCAG relative
Temperature
Cool
88/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
18.54:1
Closest name
Pale Turquoise
ΔE2000 3.5
Where it sits
Hue181° of 360°
Saturation100%
Lightness85%
Temperature
Warm ← → Cool88% 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#b3feff
RGBrgb(179, 254, 255)
HSLhsl(181, 100%, 85%)
CMYKcmyk(30%, 0%, 0%, 0%)
LABlab(95.0 -22.6 -7.9)
LCHlch(95.0 23.9 199.2)
OKLCHoklch(0.949 0.073 197.0)
Decimal11796223
Display P3color(display-p3 0.702 0.996 1.000)

Copy-ready code

/* CSS */
color: #b3feff;
background-color: #b3feff;
/* Tailwind (arbitrary) */
class="text-[#b3feff] bg-[#b3feff]"
/* SCSS */
$brand: #b3feff;
/* SwiftUI */
Color(red: 0.702, green: 0.996, blue: 1.000)
/* Android */
Color.parseColor("#b3feff")
/* Flutter */
Color(0xFFB3FEFF)
/* Python / OpenCV (BGR) */
(255, 254, 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 #b3feff · 18.54:1
Use #000000AAA at every size.
Aa
White text · 1.13:1
AA fail · AA large fail · AAA fail
Aa
Black text · 18.54:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b3feff as text scores 1.13:1 on white and 18.54:1 on black.

Accessibility — WCAG contrast

Aa
#b3feff on white: 1.13:1
AA ✗ fail · AA-large · AAA
Aa
#b3feff on black: 18.54:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #F4F7FF
deuteranopia · #E6ECFF
tritanopia · #97FFFE

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b3feff 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.

#F1FDFE
#E3FCFC
#b3feff
#8FFEFF
#57FDFF
#1FFCFF
#00F2F5
#00C9CC
#00A1A3
#057476
#034949
Base = 200Lightest = 50 · #F1FDFEDarkest = 950 · #034949
:root {
  --brand-50: #F1FDFE;
  --brand-100: #E3FCFC;
  --brand-200: #b3feff;
  --brand-300: #8FFEFF;
  --brand-400: #57FDFF;
  --brand-500: #1FFCFF;
  --brand-600: #00F2F5;
  --brand-700: #00C9CC;
  --brand-800: #00A1A3;
  --brand-900: #057476;
  --brand-950: #034949;
  --brand: #b3feff;
  --brand-ink: #000000;
}

Colors that work with #b3feff

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#F4FAFA
Tinted page background
Border#C0ECED
Hairlines and dividers
Muted text#4B9A9B
Captions on the surface
Accent#CC0030
Second voice, not a rival
Dark variant#007E80
Hover, pressed, headers
Light variant#E5FFFF
Selected rows, tints
Dark surface#142424
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 #b3feff

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
  • Thin strokes and 1px borders — they disappear on light UI
  • 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#FFB4B3
Analogous left#B3FFDA
Analogous right#B3D8FF
Split-complement 1#FFB3D8
Split-complement 2#FFDAB3
Triadic 1#FFB3FE
Triadic 2#FEFFB3
Tetradic#DAB3FF

RGB percentages

Red70.2%
Green99.6%
Blue100.0%

CMYK percentages

Cyan29.8%
Magenta0.4%
Yellow0.0%
Key (black)0.0%

Color previews

#b3feff text on a black background

contrast 18.54:1

Card sample

#b3feff text on a white background

contrast 1.13:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b3feff;
Background color
Panel with #b3feff background
background-color: #b3feff;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b3feff;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(179, 254, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(179, 254, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b3feff;
background: linear-gradient(135deg, #b3feff, #B3CBFF);

Monochromatic scale

Palettes built from #b3feff

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.

#b3feff in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyTravelHealthcareMedia
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#b3feff, answered

What color is #b3feff?

#b3feff is a pale electric cyan, closest to Pale Turquoise (ΔE2000 3.5). It sits at 181° on the hue wheel with 100% saturation and 85% lightness, which reads as cool.

What is the RGB value of #b3feff?

rgb(179, 254, 255) — 179 red, 254 green and 255 blue out of 255, or 70.2% / 99.6% / 100% by channel.

Is #b3feff a light or a dark color?

It is a light color. Relative luminance is 0.8769 and perceived brightness is 92%, so black text on it reaches 18.54:1.

Should I use black or white text on #b3feff?

Black. It scores 18.54:1 against #b3feff, versus 1.13:1 for white — AAA at any size.

What is the complementary color of #b3feff?

#FFB4B3 sits directly opposite on the wheel. Softer options are the split-complements #FFB3D8 and #FFDAB3, which give the same contrast with far less vibration.

What colors go well with #b3feff?

For interface work: #F4FAFA as the surface, #C0ECED for borders, #4B9A9B for secondary text, #CC0030 as an accent and #007E80 for hover and pressed states. For a palette, the analogous pair #B3FFDA and #B3D8FF stays calm, while #FFB4B3 is the loudest partner.

What is #b3feff in CMYK for printing?

cmyk(30%, 0%, 0%, 0%). 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 #b3feff warm or cool?

Cool — it scores 88 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #B3FFE4; nudged cooler, #B3E2FF.

Work with #b3feff in the Color Lab