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#02bbc8

a dark, electric cyan · cool · closest name: Dark Turquoise

RGB
2, 187, 200
HSL
184°, 98%, 40%
CMYK
99, 7, 0, 22
Luminance
0.3972

At a glance

Every number on this page in one read: what #02bbc8 is made of, how bright it looks, and which way it leans.

Hex
#02bbc8
Hue
184°
cyan
Saturation
98%
electric
Lightness
40%
dark
Brightness
78%
HSV value
Perceived
62%
weighted brightness
Luminance
0.3972
WCAG relative
Temperature
Cool
89/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
8.94:1
Closest name
Dark Turquoise
ΔE2000 6.1
Where it sits
Hue184° of 360°
Saturation98%
Lightness40%
Temperature
Warm ← → Cool89% 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#02bbc8
RGBrgb(2, 187, 200)
HSLhsl(184, 98%, 40%)
CMYKcmyk(99%, 7%, 0%, 22%)
LABlab(69.3 -34.0 -17.7)
LCHlch(69.3 38.3 207.5)
OKLCHoklch(0.722 0.123 203.7)
Decimal179144
Display P3color(display-p3 0.008 0.733 0.784)

Copy-ready code

/* CSS */
color: #02bbc8;
background-color: #02bbc8;
/* Tailwind (arbitrary) */
class="text-[#02bbc8] bg-[#02bbc8]"
/* SCSS */
$brand: #02bbc8;
/* SwiftUI */
Color(red: 0.008, green: 0.733, blue: 0.784)
/* Android */
Color.parseColor("#02bbc8")
/* Flutter */
Color(0xFF02BBC8)
/* Python / OpenCV (BGR) */
(200, 187, 2)

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 #02bbc8 · 8.94:1
Use #000000AAA at every size.
Aa
White text · 2.35:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.94:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #02bbc8 as text scores 2.35:1 on white and 8.94:1 on black.

Accessibility — WCAG contrast

Aa
#02bbc8 on white: 2.35:1
AA ✗ fail · AA-large · AAA
Aa
#02bbc8 on black: 8.94:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #ABB3C9
deuteranopia · #94A2C9
tritanopia · #00C3BF

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #02bbc8 is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1FDFD
#E3FAFC
#C1F7FB
#90F7FE
#58F3FD
#21EEFD
#02E3F2
#02bbc8
#0297A2
#066D74
#044449
Base = 700Lightest = 50 · #F1FDFDDarkest = 950 · #044449
:root {
  --brand-50: #F1FDFD;
  --brand-100: #E3FAFC;
  --brand-200: #C1F7FB;
  --brand-300: #90F7FE;
  --brand-400: #58F3FD;
  --brand-500: #21EEFD;
  --brand-600: #02E3F2;
  --brand-700: #02bbc8;
  --brand-800: #0297A2;
  --brand-900: #066D74;
  --brand-950: #044449;
  --brand: #02bbc8;
  --brand-ink: #000000;
}

Colors that work with #02bbc8

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#C0EAED
Hairlines and dividers
Muted text#4B969B
Captions on the surface
Accent#CA0025
Second voice, not a rival
Dark variant#01767E
Hover, pressed, headers
Light variant#E6FDFF
Selected rows, tints
Dark surface#142324
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 #02bbc8

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
  • Headers, footers and dark-mode surfaces
  • 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
  • Black 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#C80F02
Analogous left#02C872
Analogous right#0258C8
Split-complement 1#C80258
Split-complement 2#C87202
Triadic 1#C802BB
Triadic 2#BBC802
Tetradic#7202C8

RGB percentages

Red0.8%
Green73.3%
Blue78.4%

CMYK percentages

Cyan99.0%
Magenta6.5%
Yellow0.0%
Key (black)21.6%

Color previews

#02bbc8 text on a black background

contrast 8.94:1

Card sample

#02bbc8 text on a white background

contrast 2.35:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #02bbc8;
Background color
Panel with #02bbc8 background
background-color: #02bbc8;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #02bbc8;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(2, 187, 200, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(2, 187, 200, 0.45);
Border & gradient
Gradient panel
border: 3px solid #02bbc8;
background: linear-gradient(135deg, #02bbc8, #0237C8);

Monochromatic scale

Palettes built from #02bbc8

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.

#02bbc8 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.

#02bbc8, answered

What color is #02bbc8?

#02bbc8 is a dark electric cyan, closest to Dark Turquoise (ΔE2000 6.1). It sits at 184° on the hue wheel with 98% saturation and 40% lightness, which reads as cool.

What is the RGB value of #02bbc8?

rgb(2, 187, 200) — 2 red, 187 green and 200 blue out of 255, or 0.8% / 73.3% / 78.4% by channel.

Is #02bbc8 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3972 and perceived brightness is 62%, so black text on it reaches 8.94:1.

Should I use black or white text on #02bbc8?

Black. It scores 8.94:1 against #02bbc8, versus 2.35:1 for white — AAA at any size.

What is the complementary color of #02bbc8?

#C80F02 sits directly opposite on the wheel. Softer options are the split-complements #C80258 and #C87202, which give the same contrast with far less vibration.

What colors go well with #02bbc8?

For interface work: #F4FAFA as the surface, #C0EAED for borders, #4B969B for secondary text, #CA0025 as an accent and #01767E for hover and pressed states. For a palette, the analogous pair #02C872 and #0258C8 stays calm, while #C80F02 is the loudest partner.

What is #02bbc8 in CMYK for printing?

cmyk(99%, 7%, 0%, 22%). 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 #02bbc8 warm or cool?

Cool — it scores 89 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #02C88C; nudged cooler, #008FCA.

Work with #02bbc8 in the Color Lab