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#58ecdf

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

RGB
88, 236, 223
HSL
175°, 80%, 64%
CMYK
63, 0, 6, 8
Luminance
0.6739

At a glance

Every number on this page in one read: what #58ecdf is made of, how bright it looks, and which way it leans.

Hex
#58ecdf
Hue
175°
cyan
Saturation
80%
electric
Lightness
64%
balanced
Brightness
93%
HSV value
Perceived
79%
weighted brightness
Luminance
0.6739
WCAG relative
Temperature
Cool
85/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
14.48:1
Closest name
Turquoise
ΔE2000 3.2
Where it sits
Hue175° of 360°
Saturation80%
Lightness64%
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#58ecdf
RGBrgb(88, 236, 223)
HSLhsl(175, 80%, 64%)
CMYKcmyk(63%, 0%, 6%, 8%)
LABlab(85.7 -42.0 -5.4)
LCHlch(85.7 42.4 187.3)
OKLCHoklch(0.861 0.126 186.9)
Decimal5827807
Display P3color(display-p3 0.345 0.925 0.875)

Copy-ready code

/* CSS */
color: #58ecdf;
background-color: #58ecdf;
/* Tailwind (arbitrary) */
class="text-[#58ecdf] bg-[#58ecdf]"
/* SCSS */
$brand: #58ecdf;
/* SwiftUI */
Color(red: 0.345, green: 0.925, blue: 0.875)
/* Android */
Color.parseColor("#58ecdf")
/* Flutter */
Color(0xFF58ECDF)
/* Python / OpenCV (BGR) */
(223, 236, 88)

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 #58ecdf · 14.48:1
Use #000000AAA at every size.
Aa
White text · 1.45:1
AA fail · AA large fail · AAA fail
Aa
Black text · 14.48:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #58ecdf as text scores 1.45:1 on white and 14.48:1 on black.

Accessibility — WCAG contrast

Aa
#58ecdf on white: 1.45:1
AA ✗ fail · AA-large · AAA
Aa
#58ecdf on black: 14.48:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #E0E0DF
deuteranopia · #CACFE1
tritanopia · #00F1E8

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #58ecdf is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FCFB
#E6F9F8
#C7F5F1
#9AF4EC
#58ecdf
#35E8D8
#19DCCB
#15B7A9
#119387
#106A62
#0A423D
Base = 400Lightest = 50 · #F3FCFBDarkest = 950 · #0A423D
:root {
  --brand-50: #F3FCFB;
  --brand-100: #E6F9F8;
  --brand-200: #C7F5F1;
  --brand-300: #9AF4EC;
  --brand-400: #58ecdf;
  --brand-500: #35E8D8;
  --brand-600: #19DCCB;
  --brand-700: #15B7A9;
  --brand-800: #119387;
  --brand-900: #106A62;
  --brand-950: #0A423D;
  --brand: #58ecdf;
  --brand-ink: #000000;
}

Colors that work with #58ecdf

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#F05489
Second voice, not a rival
Dark variant#0D726A
Hover, pressed, headers
Light variant#E8FCFB
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 #58ecdf

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#EC5865
Analogous left#58EC95
Analogous right#58AFEC
Split-complement 1#EC58AF
Split-complement 2#EC9558
Triadic 1#DF58EC
Triadic 2#ECDF58
Tetradic#9558EC

RGB percentages

Red34.5%
Green92.5%
Blue87.5%

CMYK percentages

Cyan62.7%
Magenta0.0%
Yellow5.5%
Key (black)7.5%

Color previews

#58ecdf text on a black background

contrast 14.48:1

Card sample

#58ecdf text on a white background

contrast 1.45:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #58ecdf;
Background color
Panel with #58ecdf background
background-color: #58ecdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #58ecdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(88, 236, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(88, 236, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #58ecdf;
background: linear-gradient(135deg, #58ecdf, #5896EC);

Monochromatic scale

Palettes built from #58ecdf

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.

#58ecdf 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.

#58ecdf, answered

What color is #58ecdf?

#58ecdf is a balanced electric cyan, closest to Turquoise (ΔE2000 3.2). It sits at 175° on the hue wheel with 80% saturation and 64% lightness, which reads as cool.

What is the RGB value of #58ecdf?

rgb(88, 236, 223) — 88 red, 236 green and 223 blue out of 255, or 34.5% / 92.5% / 87.5% by channel.

Is #58ecdf a light or a dark color?

It is a light color. Relative luminance is 0.6739 and perceived brightness is 79%, so black text on it reaches 14.48:1.

Should I use black or white text on #58ecdf?

Black. It scores 14.48:1 against #58ecdf, versus 1.45:1 for white — AAA at any size.

What is the complementary color of #58ecdf?

#EC5865 sits directly opposite on the wheel. Softer options are the split-complements #EC58AF and #EC9558, which give the same contrast with far less vibration.

What colors go well with #58ecdf?

For interface work: #F4FAFA as the surface, #C0EDE9 for borders, #4B9B94 for secondary text, #F05489 as an accent and #0D726A for hover and pressed states. For a palette, the analogous pair #58EC95 and #58AFEC stays calm, while #EC5865 is the loudest partner.

What is #58ecdf in CMYK for printing?

cmyk(63%, 0%, 6%, 8%). 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 #58ecdf 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 #58ECA9; nudged cooler, #56C5EE.

Work with #58ecdf in the Color Lab