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cyan · cool

#06eeaf

a balanced, electric cyan · cool · closest name: Medium Spring Green

Token name suggestion: Atlas Reef

RGB
6, 238, 175
HSL
164°, 95%, 48%
CMYK
98, 0, 27, 7
Luminance
0.6428

#06eeaf is a balanced electric cyan, 164° on the wheel and 81/100 on the cool side. Put black text on it (13.86:1). As text it scores 1.52:1 on white — use #038562 instead. Nearest name is Medium Spring Green, nearest Tailwind family is emerald.

hsl(164 95% 48%)rgb(6 238 175)Base step 600AAA inkCool

At a glance

Every number on this page in one read: what #06eeaf is made of, how bright it looks, and which way it leans.

Hex
#06eeaf
Hue
164°
cyan
Saturation
95%
electric
Lightness
48%
balanced
Brightness
93%
HSV value
Perceived
75%
weighted brightness
Luminance
0.6428
WCAG relative
Temperature
Cool
81/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
13.86:1
Closest name
Medium Spring Green
ΔE2000 6.1
Chroma
64.3
LCH, 0–130ish
OKLCH L
0.841
perceptual lightness
Tailwind
emerald
500 · ΔE 12.9
Web-safe
#00FF99
nearest of 216
Where it sits
Hue164° of 360°
Saturation95%
Lightness48%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #06eeaf.

Temperature
Warm ← → Cool81% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red0%
Green95%
Blue5%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#06eeaf
HEX (8-digit)#06eeafff
RGBrgb(6, 238, 175)
RGBArgba(6, 238, 175, 1)
HSLhsl(164, 95%, 48%)
HSV / HSBhsv(164, 97%, 93%)
HWBhwb(164 2% 7%)
CMYKcmyk(98%, 0%, 27%, 7%)
LABlab(84.1 -61.9 17.4)
LCHlch(84.1 64.3 164.3)
OKLCHoklch(0.841 0.175 165.4)
XYZ (D65)xyz(38.38, 64.28, 50.93)
Decimal454319
Display P3color(display-p3 0.024 0.933 0.686)
Web-safe#00FF99

Copy-ready code

every platformclick to select
/* CSS */
color: #06eeaf;
background-color: #06eeaf;
/* CSS custom property */
--brand: #06eeaf;
/* Tailwind (arbitrary) */
class="text-[#06eeaf] bg-[#06eeaf]"
/* SCSS */
$brand: #06eeaf;
/* SwiftUI */
Color(red: 0.024, green: 0.933, blue: 0.686)
/* UIKit */
UIColor(red: 0.024, green: 0.933, blue: 0.686, alpha: 1)
/* Android XML */
<color name="brand">#06EEAF</color>
/* Android Compose */
Color(0xFF06EEAF)
/* Flutter */
Color(0xFF06EEAF)
/* Python / OpenCV (BGR) */
(175, 238, 6)
/* Python / PIL (RGB) */
(6, 238, 175)
/* Java AWT */
new Color(6, 238, 175)
/* .NET */
Color.FromArgb(255, 6, 238, 175)
/* OpenGL / Unity (0–1) */
(0.0235f, 0.9333f, 0.6863f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{6,238,175}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #06eeaf 85%, white);
border-color: color-mix(in oklab, #06eeaf 40%, transparent);
/* theme-aware in one line */
color: light-dark(#037C5B, #D3EEE7);
/* relative colour syntax */
--hover: hsl(from #06eeaf h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F1FDFA;
  --brand-100: #E4FBF5;
  --brand-200: #C2FAEB;
  --brand-300: #92FCDF;
  --brand-400: #5BFBCF;
  --brand-500: #24FAC0;
  --brand-600: #06eeaf;
  --brand-700: #05C792;
  --brand-800: #049F75;
  --brand-900: #087356;
  --brand-950: #054836;
  --brand: #06eeaf;
  --brand-ink: #000000;
  --brand-surface: #F4FAF9;
  --brand-border: #C0EDE0;
  --brand-hover: #05CB95;
  --brand-pressed: #04A87C;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142420;
    --brand-ink: #D3EEE7;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1FDFA',
        100: '#E4FBF5',
        200: '#C2FAEB',
        300: '#92FCDF',
        400: '#5BFBCF',
        500: '#24FAC0',
        600: '#06eeaf',
        700: '#05C792',
        800: '#049F75',
        900: '#087356',
        950: '#054836',
        DEFAULT: '#06eeaf',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1FDFA,
  '100': #E4FBF5,
  '200': #C2FAEB,
  '300': #92FCDF,
  '400': #5BFBCF,
  '500': #24FAC0,
  '600': #06eeaf,
  '700': #05C792,
  '800': #049F75,
  '900': #087356,
  '950': #054836,
);
$brand-base: #06eeaf;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1FDFA", "$type": "color" },
      "100": { "$value": "#E4FBF5", "$type": "color" },
      "200": { "$value": "#C2FAEB", "$type": "color" },
      "300": { "$value": "#92FCDF", "$type": "color" },
      "400": { "$value": "#5BFBCF", "$type": "color" },
      "500": { "$value": "#24FAC0", "$type": "color" },
      "600": { "$value": "#06eeaf", "$type": "color" },
      "700": { "$value": "#05C792", "$type": "color" },
      "800": { "$value": "#049F75", "$type": "color" },
      "900": { "$value": "#087356", "$type": "color" },
      "950": { "$value": "#054836", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

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 #06eeaf · 13.86:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.52:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.86:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #06eeaf as text scores 1.52:1 on white and 13.86:1 on black.
Best tinted ink on it, if plain black or white feels flat: #037C5B at 3.43:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#038562 · 4.63:1
AA on white−21% L
#038562
The quick fox
#026348 · 7.29:1
AAA on white−28% L
#026348
The quick fox
#06eeaf · 13.86:1
AA on blackalready passes
#06eeaf
The quick fox
#06eeaf · 13.86:1
AAA on blackalready passes
#06eeaf

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #04A87C is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#06eeaf on white: 1.52:1
AA ✗ fail · AA-large · AAA
Aa
#06eeaf on black: 13.86:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #06eeaf as text on that neutral, and that neutral as text on #06eeaf.

NeutralRatioBoth directions
White1.52:1AaAa
Slate 501.45:1AaAa
Slate 1001.38:1AaAa
Slate 2001.23:1AaAa
Slate 3001.02:1AaAa
Slate 4001.69:1AaAa
Slate 5003.14:1AaAa
Slate 6005.00:1AaAa
Slate 7006.83:1AaAa
Slate 8009.65:1AaAa
Slate 90011.78:1AaAa
Black13.86:1AaAa
Colour vision deficiency
true color
protanopia · #E9DCAB
deuteranopia · #D1CBB3
tritanopia · #00EEDD

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #06eeaf 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.

#F1FDFA
#E4FBF5
#C2FAEB
#92FCDF
#5BFBCF
#24FAC0
#06eeaf
#05C792
#049F75
#087356
#054836
Base = 600Lightest = 50 · #F1FDFADarkest = 950 · #054836Text step on white = 900
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.044 165.4);
  --brand-100: oklch(0.94 0.070 165.4);
  --brand-200: oklch(0.88 0.105 165.4);
  --brand-300: oklch(0.80 0.137 165.4);
  --brand-400: oklch(0.72 0.161 165.4);
  --brand-500: oklch(0.64 0.175 165.4);
  --brand-600: oklch(0.56 0.175 165.4);
  --brand-700: oklch(0.48 0.165 165.4);
  --brand-800: oklch(0.40 0.147 165.4);
  --brand-900: oklch(0.32 0.123 165.4);
  --brand-950: oklch(0.24 0.096 165.4);
}

Colors that work with #06eeaf

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#F4FAF9
Tinted page background
Border#C0EDE0
Hairlines and dividers
Muted text#4B9B85
Captions on the surface
Accent#F3017F
Second voice, not a rival
Dark variant#037C5B
Hover, pressed, headers
Light variant#E6FEF8
Selected rows, tints
Dark surface#142420
Dark-mode background
Hover#05CB95
One step down in lightness
Pressed#04A87C
Two steps down
Disabled#A1C3BA
Chroma pulled out
Focus ring#09FFBC
Offset from the fill so it reads
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

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #06eeaf

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
  • Chart series and data categories
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
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #037C5B
Safe as a 1px border on white
No — use #04A87C

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

cleantechnicalfreshclinical

Cyan reads as water, air and infrastructure: cool, hygienic, engineered.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The mid lightness keeps it versatile in both themes.

Worth knowing

At high lightness it disappears into white surfaces and thin strokes vanish entirely.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight52/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

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#EE0645
Analogous left#06EE3B
Analogous right#06B9EE
Split-complement 1#EE06B9
Split-complement 2#EE3B06
Triadic 1#AF06EE
Triadic 2#EEAF06
Tetradic#3B06EE
On the wheel
Base+30°−30°+120°+240°+180°164°

#06eeaf sits at 164°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red2.4%
Green93.3%
Blue68.6%
R · 0–255
6
0x06
G · 0–255
238
0xee
B · 0–255
175
0xaf

CMYK percentages

Cyan97.5%
Magenta0.0%
Yellow26.5%
Key (black)6.7%

Total ink coverage is 131%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#06eeaf text on a black background

contrast 13.86:1

Card sample

#06eeaf text on a white background

contrast 1.52:1

Card sample

#06eeaf on grey

1.38:1

#06eeaf on its own surface

1.44:1

#06eeaf on its dark surface

10.63:1

CSS3 live lab

Text font color

The quick brown fox

color: #06eeaf;
Background color
Panel with #06eeaf background
background-color: #06eeaf;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #06eeaf;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(6, 238, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(6, 238, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #06eeaf;
background: linear-gradient(135deg, #06eeaf, #0692EE);
Gradient text

Gradient headline

background: linear-gradient(90deg, #06eeaf, #0658EE);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #06eeaf;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #06eeaf;
caret-color: #06eeaf;
Left rule
Pull quote or callout
border-left: 4px solid #06eeaf;
Ring + tint
Selected chip
background: #E6FEF8;
box-shadow: inset 0 0 0 2px #06eeaf;
Conic badge
68%
background: conic-gradient(#06eeaf 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #06eeaf over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(6, 238, 175, 0.5)
rgb(6 238 175 / 50%)
#06eeaf80
hsl(164 95% 48% / 50%)
color-mix(in srgb, #06eeaf 50%, transparent)
Alpha8-digit hexFlat on white
10%#06eeaf1a#E6FDF7
20%#06eeaf33#CDFCEF
40%#06eeaf66#9BF8DF
60%#06eeaf99#6AF5CF
80%#06eeafcc#38F1BF

Gradients from #06eeaf

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #37FAC5, #06eeaf 45%, #037C5B);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #06eeaf, #056FD0);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #06eeaf, #EE0645);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #55FBCE 0%, #06eeaf 45%, #037C5B 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF9, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #2DFA4B 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #19B3F9 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #037C5B 0%, transparent 65%), #06eeaf;

Monochromatic scale

Palettes built from #06eeaf

Shades — darker

Tints — lighter

Tones — desaturated

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.

#06eeaf 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.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 13.86:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#06eeaf, answered

What color is #06eeaf?

#06eeaf is a balanced electric cyan, closest to Medium Spring Green (ΔE2000 6.1). It sits at 164° on the hue wheel with 95% saturation and 48% lightness, which reads as cool.

What is the RGB value of #06eeaf?

rgb(6, 238, 175) — 6 red, 238 green and 175 blue out of 255, or 2.4% / 93.3% / 68.6% by channel.

What is #06eeaf in HSL and HSV?

hsl(164, 95%, 48%) and hsv(164, 97%, 93%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #06eeaf a light or a dark color?

It is a light color. Relative luminance is 0.6428 and perceived brightness is 75%, so black text on it reaches 13.86:1.

Should I use black or white text on #06eeaf?

Black. It scores 13.86:1 against #06eeaf, versus 1.52:1 for white — AAA at any size.

Is #06eeaf accessible on a white background?

#06eeaf on white scores 1.52:1, which fails WCAG AA at every size. Darken it to #038562 to reach 4.5:1, or #026348 for 7:1.

What is the complementary color of #06eeaf?

#EE0645 sits directly opposite on the wheel. Softer options are the split-complements #EE06B9 and #EE3B06, which give the same contrast with far less vibration.

What colors go well with #06eeaf?

For interface work: #F4FAF9 as the surface, #C0EDE0 for borders, #4B9B85 for secondary text, #F3017F as an accent and #037C5B for hover and pressed states. For a palette, the analogous pair #06EE3B and #06B9EE stays calm, while #EE0645 is the loudest partner.

What is #06eeaf in CMYK for printing?

cmyk(98%, 0%, 27%, 7%). 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 #06eeaf warm or cool?

Cool — it scores 81 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #06EE5A; nudged cooler, #04DAF0.

Which Tailwind color is closest to #06eeaf?

The emerald family — its 500 step is #10b981, ΔE2000 12.9 away. That is a visible difference, so define #06eeaf as a custom token rather than reaching for the built-in.

How do I use #06eeaf in Tailwind CSS?

Inline it as an arbitrary value with bg-[#06eeaf] or text-[#06eeaf], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #06eeaf with 50% opacity?

rgba(6, 238, 175, 0.5), or #06eeaf80 in eight-digit hex. Over white that composites to #83F7D7; over black, #037758.

Is #06eeaf a web-safe color?

No. The nearest web-safe colour is #00FF99, ΔE2000 7.2 away. The palette only matters for legacy displays and some email clients now.

What does the color #06eeaf mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #06eeaf?

The safest is same-hue elevation: linear-gradient(135deg, #37FAC5, #06eeaf 45%, #037C5B). For more colour, a short hue run to #056FD0 keeps it rich without turning muddy.

Work with #06eeaf in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #06eeaf at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.