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#01ecdf

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

RGB
1, 236, 223
HSL
177°, 99%, 47%
CMYK
100, 0, 6, 8
Luminance
0.6533

At a glance

Every number on this page in one read: what #01ecdf is made of, how bright it looks, and which way it leans.

Hex
#01ecdf
Hue
177°
cyan
Saturation
99%
electric
Lightness
47%
balanced
Brightness
93%
HSV value
Perceived
77%
weighted brightness
Luminance
0.6533
WCAG relative
Temperature
Cool
86/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
14.07:1
Closest name
Turquoise
ΔE2000 3.2
Where it sits
Hue177° of 360°
Saturation99%
Lightness47%
Temperature
Warm ← → Cool86% 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#01ecdf
RGBrgb(1, 236, 223)
HSLhsl(177, 99%, 47%)
CMYKcmyk(100%, 0%, 6%, 8%)
LABlab(84.7 -49.0 -7.0)
LCHlch(84.7 49.5 188.2)
OKLCHoklch(0.850 0.148 187.7)
Decimal126175
Display P3color(display-p3 0.004 0.925 0.875)

Copy-ready code

/* CSS */
color: #01ecdf;
background-color: #01ecdf;
/* Tailwind (arbitrary) */
class="text-[#01ecdf] bg-[#01ecdf]"
/* SCSS */
$brand: #01ecdf;
/* SwiftUI */
Color(red: 0.004, green: 0.925, blue: 0.875)
/* Android */
Color.parseColor("#01ecdf")
/* Flutter */
Color(0xFF01ECDF)
/* Python / OpenCV (BGR) */
(223, 236, 1)

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 #01ecdf · 14.07:1
Use #000000AAA at every size.
Aa
White text · 1.49:1
AA fail · AA large fail · AAA fail
Aa
Black text · 14.07:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #01ecdf as text scores 1.49:1 on white and 14.07:1 on black.

Accessibility — WCAG contrast

Aa
#01ecdf on white: 1.49:1
AA ✗ fail · AA-large · AAA
Aa
#01ecdf on black: 14.07:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #DEDEDF
deuteranopia · #C4CBE1
tritanopia · #00F2E8

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #01ecdf 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.

#F1FEFD
#E3FCFB
#C0FBF8
#8FFFF8
#57FEF5
#1FFEF2
#01ecdf
#01CBC0
#01A39A
#05756F
#034945
Base = 600Lightest = 50 · #F1FEFDDarkest = 950 · #034945
:root {
  --brand-50: #F1FEFD;
  --brand-100: #E3FCFB;
  --brand-200: #C0FBF8;
  --brand-300: #8FFFF8;
  --brand-400: #57FEF5;
  --brand-500: #1FFEF2;
  --brand-600: #01ecdf;
  --brand-700: #01CBC0;
  --brand-800: #01A39A;
  --brand-900: #05756F;
  --brand-950: #034945;
  --brand: #01ecdf;
  --brand-ink: #000000;
}

Colors that work with #01ecdf

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#C0EDEA
Hairlines and dividers
Muted text#4B9B96
Captions on the surface
Accent#ED0048
Second voice, not a rival
Dark variant#017F78
Hover, pressed, headers
Light variant#E6FFFE
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 #01ecdf

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#EC010E
Analogous left#01EC6A
Analogous right#0184EC
Split-complement 1#EC0184
Split-complement 2#EC6A01
Triadic 1#DF01EC
Triadic 2#ECDF01
Tetradic#6A01EC

RGB percentages

Red0.4%
Green92.5%
Blue87.5%

CMYK percentages

Cyan99.6%
Magenta0.0%
Yellow5.5%
Key (black)7.5%

Color previews

#01ecdf text on a black background

contrast 14.07:1

Card sample

#01ecdf text on a white background

contrast 1.49:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #01ecdf;
Background color
Panel with #01ecdf background
background-color: #01ecdf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #01ecdf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(1, 236, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(1, 236, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #01ecdf;
background: linear-gradient(135deg, #01ecdf, #015CEC);

Monochromatic scale

Palettes built from #01ecdf

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.

#01ecdf 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.

#01ecdf, answered

What color is #01ecdf?

#01ecdf is a balanced electric cyan, closest to Turquoise (ΔE2000 3.2). It sits at 177° on the hue wheel with 99% saturation and 47% lightness, which reads as cool.

What is the RGB value of #01ecdf?

rgb(1, 236, 223) — 1 red, 236 green and 223 blue out of 255, or 0.4% / 92.5% / 87.5% by channel.

Is #01ecdf a light or a dark color?

It is a light color. Relative luminance is 0.6533 and perceived brightness is 77%, so black text on it reaches 14.07:1.

Should I use black or white text on #01ecdf?

Black. It scores 14.07:1 against #01ecdf, versus 1.49:1 for white — AAA at any size.

What is the complementary color of #01ecdf?

#EC010E sits directly opposite on the wheel. Softer options are the split-complements #EC0184 and #EC6A01, which give the same contrast with far less vibration.

What colors go well with #01ecdf?

For interface work: #F4FAFA as the surface, #C0EDEA for borders, #4B9B96 for secondary text, #ED0048 as an accent and #017F78 for hover and pressed states. For a palette, the analogous pair #01EC6A and #0184EC stays calm, while #EC010E is the loudest partner.

What is #01ecdf in CMYK for printing?

cmyk(100%, 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 #01ecdf warm or cool?

Cool — it scores 86 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #01EC89; nudged cooler, #00BAED.

Work with #01ecdf in the Color Lab