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#b1fdf6

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

RGB
177, 253, 246
HSL
175°, 95%, 84%
CMYK
30, 0, 3, 1
Luminance
0.8625

At a glance

Every number on this page in one read: what #b1fdf6 is made of, how bright it looks, and which way it leans.

Hex
#b1fdf6
Hue
175°
cyan
Saturation
95%
electric
Lightness
84%
light
Brightness
99%
HSV value
Perceived
91%
weighted brightness
Luminance
0.8625
WCAG relative
Temperature
Cool
85/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
18.25:1
Closest name
Pale Turquoise
ΔE2000 4.4
Where it sits
Hue175° of 360°
Saturation95%
Lightness84%
Temperature
Warm ← → Cool85% 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#b1fdf6
RGBrgb(177, 253, 246)
HSLhsl(175, 95%, 84%)
CMYKcmyk(30%, 0%, 3%, 1%)
LABlab(94.4 -24.6 -4.1)
LCHlch(94.4 25.0 189.5)
OKLCHoklch(0.943 0.075 188.8)
Decimal11664886
Display P3color(display-p3 0.694 0.992 0.965)

Copy-ready code

/* CSS */
color: #b1fdf6;
background-color: #b1fdf6;
/* Tailwind (arbitrary) */
class="text-[#b1fdf6] bg-[#b1fdf6]"
/* SCSS */
$brand: #b1fdf6;
/* SwiftUI */
Color(red: 0.694, green: 0.992, blue: 0.965)
/* Android */
Color.parseColor("#b1fdf6")
/* Flutter */
Color(0xFFB1FDF6)
/* Python / OpenCV (BGR) */
(246, 253, 177)

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 #b1fdf6 · 18.25:1
Use #000000AAA at every size.
Aa
White text · 1.15:1
AA fail · AA large fail · AAA fail
Aa
Black text · 18.25:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b1fdf6 as text scores 1.15:1 on white and 18.25:1 on black.

Accessibility — WCAG contrast

Aa
#b1fdf6 on white: 1.15:1
AA ✗ fail · AA-large · AAA
Aa
#b1fdf6 on black: 18.25:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #F5F5F6
deuteranopia · #E7EBF7
tritanopia · #98FFFB

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #b1fdf6 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.

#F1FDFC
#E4FBF9
#b1fdf6
#92FCF2
#5BFBEC
#24F9E6
#06EFD9
#05C7B5
#049F91
#087369
#054842
Base = 200Lightest = 50 · #F1FDFCDarkest = 950 · #054842
:root {
  --brand-50: #F1FDFC;
  --brand-100: #E4FBF9;
  --brand-200: #b1fdf6;
  --brand-300: #92FCF2;
  --brand-400: #5BFBEC;
  --brand-500: #24F9E6;
  --brand-600: #06EFD9;
  --brand-700: #05C7B5;
  --brand-800: #049F91;
  --brand-900: #087369;
  --brand-950: #054842;
  --brand: #b1fdf6;
  --brand-ink: #000000;
}

Colors that work with #b1fdf6

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#C0EDE9
Hairlines and dividers
Muted text#4B9B94
Captions on the surface
Accent#CC0045
Second voice, not a rival
Dark variant#037C71
Hover, pressed, headers
Light variant#E6FEFC
Selected rows, tints
Dark surface#142423
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 #b1fdf6

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#FDB1B8
Analogous left#B1FDD0
Analogous right#B1DEFD
Split-complement 1#FDB1DE
Split-complement 2#FDD0B1
Triadic 1#F6B1FD
Triadic 2#FDF6B1
Tetradic#D0B1FD

RGB percentages

Red69.4%
Green99.2%
Blue96.5%

CMYK percentages

Cyan30.0%
Magenta0.0%
Yellow2.8%
Key (black)0.8%

Color previews

#b1fdf6 text on a black background

contrast 18.25:1

Card sample

#b1fdf6 text on a white background

contrast 1.15:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #b1fdf6;
Background color
Panel with #b1fdf6 background
background-color: #b1fdf6;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b1fdf6;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(177, 253, 246, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(177, 253, 246, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b1fdf6;
background: linear-gradient(135deg, #b1fdf6, #B1D1FD);

Monochromatic scale

Palettes built from #b1fdf6

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.

#b1fdf6 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.

#b1fdf6, answered

What color is #b1fdf6?

#b1fdf6 is a light electric cyan, closest to Pale Turquoise (ΔE2000 4.4). It sits at 175° on the hue wheel with 95% saturation and 84% lightness, which reads as cool.

What is the RGB value of #b1fdf6?

rgb(177, 253, 246) — 177 red, 253 green and 246 blue out of 255, or 69.4% / 99.2% / 96.5% by channel.

Is #b1fdf6 a light or a dark color?

It is a light color. Relative luminance is 0.8625 and perceived brightness is 91%, so black text on it reaches 18.25:1.

Should I use black or white text on #b1fdf6?

Black. It scores 18.25:1 against #b1fdf6, versus 1.15:1 for white — AAA at any size.

What is the complementary color of #b1fdf6?

#FDB1B8 sits directly opposite on the wheel. Softer options are the split-complements #FDB1DE and #FDD0B1, which give the same contrast with far less vibration.

What colors go well with #b1fdf6?

For interface work: #F4FAFA as the surface, #C0EDE9 for borders, #4B9B94 for secondary text, #CC0045 as an accent and #037C71 for hover and pressed states. For a palette, the analogous pair #B1FDD0 and #B1DEFD stays calm, while #FDB1B8 is the loudest partner.

What is #b1fdf6 in CMYK for printing?

cmyk(30%, 0%, 3%, 1%). 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 #b1fdf6 warm or cool?

Cool — it scores 85 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #B1FDDA; nudged cooler, #B0E8FE.

Work with #b1fdf6 in the Color Lab