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#0bf4df

a balanced, electric cyan · cool · closest name: Turquoise

RGB
11, 244, 223
HSL
175°, 91%, 50%
CMYK
96, 0, 9, 4
Luminance
0.7010

At a glance

Every number on this page in one read: what #0bf4df is made of, how bright it looks, and which way it leans.

Hex
#0bf4df
Hue
175°
cyan
Saturation
91%
electric
Lightness
50%
balanced
Brightness
96%
HSV value
Perceived
79%
weighted brightness
Luminance
0.7010
WCAG relative
Temperature
Cool
85/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
15.02:1
Closest name
Turquoise
ΔE2000 4.6
Where it sits
Hue175° of 360°
Saturation91%
Lightness50%
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#0bf4df
RGBrgb(11, 244, 223)
HSLhsl(175, 91%, 50%)
CMYKcmyk(96%, 0%, 9%, 4%)
LABlab(87.0 -52.1 -3.5)
LCHlch(87.0 52.3 183.8)
OKLCHoklch(0.869 0.153 183.9)
Decimal783583
Display P3color(display-p3 0.043 0.957 0.875)

Copy-ready code

/* CSS */
color: #0bf4df;
background-color: #0bf4df;
/* Tailwind (arbitrary) */
class="text-[#0bf4df] bg-[#0bf4df]"
/* SCSS */
$brand: #0bf4df;
/* SwiftUI */
Color(red: 0.043, green: 0.957, blue: 0.875)
/* Android */
Color.parseColor("#0bf4df")
/* Flutter */
Color(0xFF0BF4DF)
/* Python / OpenCV (BGR) */
(223, 244, 11)

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 #0bf4df · 15.02:1
Use #000000AAA at every size.
Aa
White text · 1.40:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.02:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #0bf4df as text scores 1.40:1 on white and 15.02:1 on black.

Accessibility — WCAG contrast

Aa
#0bf4df on white: 1.40:1
AA ✗ fail · AA-large · AAA
Aa
#0bf4df on black: 15.02:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #E7E5DE
deuteranopia · #CDD2E1
tritanopia · #00F9ED

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #0bf4df is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2FDFC
#E4FBF9
#C3F9F4
#94FAF1
#5EF8EA
#28F5E3
#0bf4df
#09C3B2
#079C8F
#0A7167
#064641
Base = 600Lightest = 50 · #F2FDFCDarkest = 950 · #064641
:root {
  --brand-50: #F2FDFC;
  --brand-100: #E4FBF9;
  --brand-200: #C3F9F4;
  --brand-300: #94FAF1;
  --brand-400: #5EF8EA;
  --brand-500: #28F5E3;
  --brand-600: #0bf4df;
  --brand-700: #09C3B2;
  --brand-800: #079C8F;
  --brand-900: #0A7167;
  --brand-950: #064641;
  --brand: #0bf4df;
  --brand-ink: #000000;
}

Colors that work with #0bf4df

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#F90659
Second voice, not a rival
Dark variant#057A70
Hover, pressed, headers
Light variant#E7FEFC
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 #0bf4df

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
  • 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
  • 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#F40B20
Analogous left#0BF46B
Analogous right#0B94F4
Split-complement 1#F40B94
Split-complement 2#F46B0B
Triadic 1#DF0BF4
Triadic 2#F4DF0B
Tetradic#6B0BF4

RGB percentages

Red4.3%
Green95.7%
Blue87.5%

CMYK percentages

Cyan95.5%
Magenta0.0%
Yellow8.6%
Key (black)4.3%

Color previews

#0bf4df text on a black background

contrast 15.02:1

Card sample

#0bf4df text on a white background

contrast 1.40:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #0bf4df;
Background color
Panel with #0bf4df background
background-color: #0bf4df;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #0bf4df;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(11, 244, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(11, 244, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0bf4df;
background: linear-gradient(135deg, #0bf4df, #0B6EF4);

Monochromatic scale

Palettes built from #0bf4df

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.

#0bf4df 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
ButtonsLinksFocus statesCharts
Print note

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

#0bf4df, answered

What color is #0bf4df?

#0bf4df is a balanced electric cyan, closest to Turquoise (ΔE2000 4.6). It sits at 175° on the hue wheel with 91% saturation and 50% lightness, which reads as cool.

What is the RGB value of #0bf4df?

rgb(11, 244, 223) — 11 red, 244 green and 223 blue out of 255, or 4.3% / 95.7% / 87.5% by channel.

Is #0bf4df a light or a dark color?

It is a light color. Relative luminance is 0.7010 and perceived brightness is 79%, so black text on it reaches 15.02:1.

Should I use black or white text on #0bf4df?

Black. It scores 15.02:1 against #0bf4df, versus 1.40:1 for white — AAA at any size.

What is the complementary color of #0bf4df?

#F40B20 sits directly opposite on the wheel. Softer options are the split-complements #F40B94 and #F46B0B, which give the same contrast with far less vibration.

What colors go well with #0bf4df?

For interface work: #F4FAFA as the surface, #C0EDE9 for borders, #4B9B94 for secondary text, #F90659 as an accent and #057A70 for hover and pressed states. For a palette, the analogous pair #0BF46B and #0B94F4 stays calm, while #F40B20 is the loudest partner.

What is #0bf4df in CMYK for printing?

cmyk(96%, 0%, 9%, 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 #0bf4df 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 #0BF48A; nudged cooler, #08C7F7.

Work with #0bf4df in the Color Lab