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green · cool

#4eb290

a balanced, soft green · cool · closest name: Medium Aqua Marine

Token name suggestion: True Jade

RGB
78, 178, 144
HSL
160°, 39%, 50%
CMYK
56, 0, 19, 30
Luminance
0.3547

#4eb290 is a balanced soft green, 160° on the wheel and 79/100 on the cool side. Put black text on it (8.09:1). As text it scores 2.59:1 on white — use #388168 instead. Nearest name is Medium Aqua Marine, nearest Tailwind family is emerald.

hsl(160 39% 50%)rgb(78 178 144)Base step 600AAA inkCool

At a glance

Every number on this page in one read: what #4eb290 is made of, how bright it looks, and which way it leans.

Hex
#4eb290
Hue
160°
green
Saturation
39%
soft
Lightness
50%
balanced
Brightness
70%
HSV value
Perceived
59%
weighted brightness
Luminance
0.3547
WCAG relative
Temperature
Cool
79/100 cool
Color family
Green
Tone
Soft
Best ink
Black
8.09:1
Closest name
Medium Aqua Marine
ΔE2000 7.3
Chroma
38.5
LCH, 0–130ish
OKLCH L
0.695
perceptual lightness
Tailwind
emerald
500 · ΔE 5.9
Web-safe
#669999
nearest of 216
Where it sits
Hue160° of 360°
Saturation39%
Lightness50%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #4eb290.

Temperature
Warm ← → Cool79% 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
Red5%
Green90%
Blue6%

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

Every format

HEX#4eb290
HEX (8-digit)#4eb290ff
RGBrgb(78, 178, 144)
RGBArgba(78, 178, 144, 1)
HSLhsl(160, 39%, 50%)
HSV / HSBhsv(160, 56%, 70%)
HWBhwb(160 31% 30%)
CMYKcmyk(56%, 0%, 19%, 30%)
LABlab(66.1 -37.5 8.7)
LCHlch(66.1 38.5 167.0)
OKLCHoklch(0.695 0.107 168.1)
XYZ (D65)xyz(24.09, 35.47, 31.96)
Decimal5157520
Display P3color(display-p3 0.306 0.698 0.565)
Web-safe#669999

Copy-ready code

every platformclick to select
/* CSS */
color: #4eb290;
background-color: #4eb290;
/* CSS custom property */
--brand: #4eb290;
/* Tailwind (arbitrary) */
class="text-[#4eb290] bg-[#4eb290]"
/* SCSS */
$brand: #4eb290;
/* SwiftUI */
Color(red: 0.306, green: 0.698, blue: 0.565)
/* UIKit */
UIColor(red: 0.306, green: 0.698, blue: 0.565, alpha: 1)
/* Android XML */
<color name="brand">#4EB290</color>
/* Android Compose */
Color(0xFF4EB290)
/* Flutter */
Color(0xFF4EB290)
/* Python / OpenCV (BGR) */
(144, 178, 78)
/* Python / PIL (RGB) */
(78, 178, 144)
/* Java AWT */
new Color(78, 178, 144)
/* .NET */
Color.FromArgb(255, 78, 178, 144)
/* OpenGL / Unity (0–1) */
(0.3059f, 0.6980f, 0.5647f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{78,178,144}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #4eb290 85%, white);
border-color: color-mix(in oklab, #4eb290 40%, transparent);
/* theme-aware in one line */
color: light-dark(#275948, #D4ECE4);
/* relative colour syntax */
--hover: hsl(from #4eb290 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: #F5FAF8;
  --brand-100: #EBF4F1;
  --brand-200: #D2E9E2;
  --brand-300: #B1DDCE;
  --brand-400: #8ACCB5;
  --brand-500: #63BB9D;
  --brand-600: #4eb290;
  --brand-700: #3E8E73;
  --brand-800: #31725C;
  --brand-900: #275344;
  --brand-950: #18342B;
  --brand: #4eb290;
  --brand-ink: #000000;
  --brand-surface: #F4FAF8;
  --brand-border: #C6E6DB;
  --brand-hover: #439A7C;
  --brand-pressed: #388168;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #14241F;
    --brand-ink: #D4ECE4;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FAF8',
        100: '#EBF4F1',
        200: '#D2E9E2',
        300: '#B1DDCE',
        400: '#8ACCB5',
        500: '#63BB9D',
        600: '#4eb290',
        700: '#3E8E73',
        800: '#31725C',
        900: '#275344',
        950: '#18342B',
        DEFAULT: '#4eb290',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FAF8,
  '100': #EBF4F1,
  '200': #D2E9E2,
  '300': #B1DDCE,
  '400': #8ACCB5,
  '500': #63BB9D,
  '600': #4eb290,
  '700': #3E8E73,
  '800': #31725C,
  '900': #275344,
  '950': #18342B,
);
$brand-base: #4eb290;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FAF8", "$type": "color" },
      "100": { "$value": "#EBF4F1", "$type": "color" },
      "200": { "$value": "#D2E9E2", "$type": "color" },
      "300": { "$value": "#B1DDCE", "$type": "color" },
      "400": { "$value": "#8ACCB5", "$type": "color" },
      "500": { "$value": "#63BB9D", "$type": "color" },
      "600": { "$value": "#4eb290", "$type": "color" },
      "700": { "$value": "#3E8E73", "$type": "color" },
      "800": { "$value": "#31725C", "$type": "color" },
      "900": { "$value": "#275344", "$type": "color" },
      "950": { "$value": "#18342B", "$type": "color" }
    },
    "brandInk": { "$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 #4eb290 · 8.09:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.59:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.09:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #4eb290 as text scores 2.59:1 on white and 8.09:1 on black.
Best tinted ink on it, if plain black or white feels flat: #275948 at 3.10:1.

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
#388168 · 4.66:1
AA on white−14% L
#388168
The quick fox
#2A614E · 7.20:1
AAA on white−23% L
#2A614E
The quick fox
#4eb290 · 8.09:1
AA on blackalready passes
#4eb290
The quick fox
#4eb290 · 8.09:1
AAA on blackalready passes
#4eb290

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #47A485 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
#4eb290 on white: 2.59:1
AA ✗ fail · AA-large · AAA
Aa
#4eb290 on black: 8.09:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #4eb290 as text on that neutral, and that neutral as text on #4eb290.

NeutralRatioBoth directions
White2.59:1AaAa
Slate 502.48:1AaAa
Slate 1002.37:1AaAa
Slate 2002.10:1AaAa
Slate 3001.75:1AaAa
Slate 4001.01:1AaAa
Slate 5001.83:1AaAa
Slate 6002.92:1AaAa
Slate 7003.99:1AaAa
Slate 8005.64:1AaAa
Slate 9006.88:1AaAa
Black8.09:1AaAa
Colour vision deficiency
true color
protanopia · #AEA78E
deuteranopia · #9F9C92
tritanopia · #1CB3A8

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. #4eb290 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.

#F5FAF8
#EBF4F1
#D2E9E2
#B1DDCE
#8ACCB5
#63BB9D
#4eb290
#3E8E73
#31725C
#275344
#18342B
Base = 600Lightest = 50 · #F5FAF8Darkest = 950 · #18342BText step on white = 800
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 0.027 168.1);
  --brand-100: oklch(0.94 0.043 168.1);
  --brand-200: oklch(0.88 0.064 168.1);
  --brand-300: oklch(0.80 0.084 168.1);
  --brand-400: oklch(0.72 0.099 168.1);
  --brand-500: oklch(0.64 0.107 168.1);
  --brand-600: oklch(0.56 0.107 168.1);
  --brand-700: oklch(0.48 0.101 168.1);
  --brand-800: oklch(0.40 0.090 168.1);
  --brand-900: oklch(0.32 0.075 168.1);
  --brand-950: oklch(0.24 0.059 168.1);
}

Colors that work with #4eb290

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#F4FAF8
Tinted page background
Border#C6E6DB
Hairlines and dividers
Muted text#4B9B80
Captions on the surface
Accent#B7498A
Second voice, not a rival
Dark variant#275948
Hover, pressed, headers
Light variant#EDF7F4
Selected rows, tints
Dark surface#14241F
Dark-mode background
Hover#439A7C
One step down in lightness
Pressed#388168
Two steps down
Disabled#A9C8BD
Chroma pulled out
Focus ring#51C49D
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 #4eb290

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Status meaning — pair it with an icon or label, never colour alone
  • 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 #275948
Safe as a 1px border on white
No — use #47A485

Meaning and mood

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

safegrowingnaturalpermissive

Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. The mid lightness keeps it versatile in both themes.

Worth knowing

Red/green pairs are the most common colour-blindness failure — never let the two carry meaning alone.

Reads as
  • FormalityMedium
  • EnergyMedium
  • Weight50/100
  • 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#B24E70
Analogous left#4EB25E
Analogous right#4EA2B2
Split-complement 1#B24EA2
Split-complement 2#B25E4E
Triadic 1#904EB2
Triadic 2#B2904E
Tetradic#5E4EB2
On the wheel
Base+30°−30°+120°+240°+180°160°

#4eb290 sits at 160°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red30.6%
Green69.8%
Blue56.5%
R · 0–255
78
0x4e
G · 0–255
178
0xb2
B · 0–255
144
0x90

CMYK percentages

Cyan56.2%
Magenta0.0%
Yellow19.1%
Key (black)30.2%

Total ink coverage is 106%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#4eb290 text on a black background

contrast 8.09:1

Card sample

#4eb290 text on a white background

contrast 2.59:1

Card sample

#4eb290 on grey

2.37:1

#4eb290 on its own surface

2.46:1

#4eb290 on its dark surface

6.22:1

CSS3 live lab

Text font color

The quick brown fox

color: #4eb290;
Background color
Panel with #4eb290 background
background-color: #4eb290;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4eb290;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(78, 178, 144, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(78, 178, 144, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4eb290;
background: linear-gradient(135deg, #4eb290, #4E91B2);
Gradient text

Gradient headline

background: linear-gradient(90deg, #4eb290, #4E78B2);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #4eb290;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #4eb290;
caret-color: #4eb290;
Left rule
Pull quote or callout
border-left: 4px solid #4eb290;
Ring + tint
Selected chip
background: #EDF7F4;
box-shadow: inset 0 0 0 2px #4eb290;
Conic badge
68%
background: conic-gradient(#4eb290 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #4eb290 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(78, 178, 144, 0.5)
rgb(78 178 144 / 50%)
#4eb29080
hsl(160 39% 50% / 50%)
color-mix(in srgb, #4eb290 50%, transparent)
Alpha8-digit hexFlat on white
10%#4eb2901a#EDF7F4
20%#4eb29033#DCF0E9
40%#4eb29066#B8E0D3
60%#4eb29099#95D1BC
80%#4eb290cc#71C1A6

Gradients from #4eb290

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, #79C5AB, #4eb290 45%, #275948);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #4eb290, #44799D);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #4eb290, #B24E70);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #8ECEB8 0%, #4eb290 45%, #275948 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #72C178 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #63A6BB 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #275948 0%, transparent 65%), #4eb290;

Monochromatic scale

Palettes built from #4eb290

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.

#4eb290 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
SustainabilityFinanceHealth and wellnessAgriculture
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

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 8.09:1.

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.

#4eb290, answered

What color is #4eb290?

#4eb290 is a balanced soft green, closest to Medium Aqua Marine (ΔE2000 7.3). It sits at 160° on the hue wheel with 39% saturation and 50% lightness, which reads as cool.

What is the RGB value of #4eb290?

rgb(78, 178, 144) — 78 red, 178 green and 144 blue out of 255, or 30.6% / 69.8% / 56.5% by channel.

What is #4eb290 in HSL and HSV?

hsl(160, 39%, 50%) and hsv(160, 56%, 70%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #4eb290 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3547 and perceived brightness is 59%, so black text on it reaches 8.09:1.

Should I use black or white text on #4eb290?

Black. It scores 8.09:1 against #4eb290, versus 2.59:1 for white — AAA at any size.

Is #4eb290 accessible on a white background?

#4eb290 on white scores 2.59:1, which fails WCAG AA at every size. Darken it to #388168 to reach 4.5:1, or #2A614E for 7:1.

What is the complementary color of #4eb290?

#B24E70 sits directly opposite on the wheel. Softer options are the split-complements #B24EA2 and #B25E4E, which give the same contrast with far less vibration.

What colors go well with #4eb290?

For interface work: #F4FAF8 as the surface, #C6E6DB for borders, #4B9B80 for secondary text, #B7498A as an accent and #275948 for hover and pressed states. For a palette, the analogous pair #4EB25E and #4EA2B2 stays calm, while #B24E70 is the loudest partner.

What is #4eb290 in CMYK for printing?

cmyk(56%, 0%, 19%, 30%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4eb290 warm or cool?

Cool — it scores 79 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #4EB26B; nudged cooler, #4BB2B5.

Which Tailwind color is closest to #4eb290?

The emerald family — its 500 step is #10b981, ΔE2000 5.9 away. That is a visible difference, so define #4eb290 as a custom token rather than reaching for the built-in.

How do I use #4eb290 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#4eb290] or text-[#4eb290], 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 #4eb290 with 50% opacity?

rgba(78, 178, 144, 0.5), or #4eb29080 in eight-digit hex. Over white that composites to #A7D9C8; over black, #275948.

Is #4eb290 a web-safe color?

No. The nearest web-safe colour is #669999, ΔE2000 14.6 away. The palette only matters for legacy displays and some email clients now.

What does the color #4eb290 mean?

As a green, it reads safe, growing, natural. Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed. At this moderate chroma the association is present but not shouted.

What gradient works with #4eb290?

The safest is same-hue elevation: linear-gradient(135deg, #79C5AB, #4eb290 45%, #275948). For more colour, a short hue run to #44799D keeps it rich without turning muddy.

Work with #4eb290 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #4eb290 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.