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green · cool

#ecf3ee

a pale, soft green · cool · closest name: Mint Cream

Token name suggestion: Chalk Basil

RGB
236, 243, 238
HSL
137°, 23%, 94%
CMYK
3, 0, 2, 5
Luminance
0.8811

#ecf3ee is a pale soft green, 137° on the wheel and 63/100 on the cool side. Put black text on it (18.62:1). As text it scores 1.13:1 on white — use #51805E instead. Nearest name is Mint Cream, nearest Tailwind family is cyan.

hsl(137 23% 94%)rgb(236 243 238)Base step 100AAA inkCool

At a glance

Every number on this page in one read: what #ecf3ee is made of, how bright it looks, and which way it leans.

Hex
#ecf3ee
Hue
137°
green
Saturation
23%
soft
Lightness
94%
pale
Brightness
95%
HSV value
Perceived
94%
weighted brightness
Luminance
0.8811
WCAG relative
Temperature
Cool
63/100 cool
Color family
Green
Tone
Soft
Best ink
Black
18.62:1
Closest name
Mint Cream
ΔE2000 2.6
Chroma
3.6
LCH, 0–130ish
OKLCH L
0.958
perceptual lightness
Tailwind
cyan
500 · ΔE 28.1
Web-safe
#FFFFFF
nearest of 216
Where it sits
Hue137° of 360°
Saturation23%
Lightness94%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #ecf3ee.

Temperature
Warm ← → Cool63% 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
Red20%
Green73%
Blue7%

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

Every format

HEX#ecf3ee
HEX (8-digit)#ecf3eeff
RGBrgb(236, 243, 238)
RGBArgba(236, 243, 238, 1)
HSLhsl(137, 23%, 94%)
HSV / HSBhsv(137, 3%, 95%)
HWBhwb(137 93% 5%)
CMYKcmyk(3%, 0%, 2%, 5%)
LABlab(95.2 -3.2 1.6)
LCHlch(95.2 3.6 153.5)
OKLCHoklch(0.958 0.010 155.1)
XYZ (D65)xyz(82.07, 88.11, 93.55)
Decimal15528942
Display P3color(display-p3 0.925 0.953 0.933)
Web-safe#FFFFFF

Copy-ready code

every platformclick to select
/* CSS */
color: #ecf3ee;
background-color: #ecf3ee;
/* CSS custom property */
--brand: #ecf3ee;
/* Tailwind (arbitrary) */
class="text-[#ecf3ee] bg-[#ecf3ee]"
/* SCSS */
$brand: #ecf3ee;
/* SwiftUI */
Color(red: 0.925, green: 0.953, blue: 0.933)
/* UIKit */
UIColor(red: 0.925, green: 0.953, blue: 0.933, alpha: 1)
/* Android XML */
<color name="brand">#ECF3EE</color>
/* Android Compose */
Color(0xFFECF3EE)
/* Flutter */
Color(0xFFECF3EE)
/* Python / OpenCV (BGR) */
(238, 243, 236)
/* Python / PIL (RGB) */
(236, 243, 238)
/* Java AWT */
new Color(236, 243, 238)
/* .NET */
Color.FromArgb(255, 236, 243, 238)
/* OpenGL / Unity (0–1) */
(0.9255f, 0.9529f, 0.9333f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{236,243,238}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #ecf3ee 85%, white);
border-color: color-mix(in oklab, #ecf3ee 40%, transparent);
/* theme-aware in one line */
color: light-dark(#314E3A, #D9E7DD);
/* relative colour syntax */
--hover: hsl(from #ecf3ee 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: #F6F9F7;
  --brand-100: #ecf3ee;
  --brand-200: #D7E4DB;
  --brand-300: #BAD4C1;
  --brand-400: #98BEA3;
  --brand-500: #75A884;
  --brand-600: #5F966F;
  --brand-700: #4F7D5C;
  --brand-800: #3F644A;
  --brand-900: #304A38;
  --brand-950: #1E2E23;
  --brand: #ecf3ee;
  --brand-ink: #000000;
  --brand-surface: #F6F9F7;
  --brand-border: #CDDFD2;
  --brand-hover: #D6E5DA;
  --brand-pressed: #C0D7C7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #162219;
    --brand-ink: #D9E7DD;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F6F9F7',
        100: '#ecf3ee',
        200: '#D7E4DB',
        300: '#BAD4C1',
        400: '#98BEA3',
        500: '#75A884',
        600: '#5F966F',
        700: '#4F7D5C',
        800: '#3F644A',
        900: '#304A38',
        950: '#1E2E23',
        DEFAULT: '#ecf3ee',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F6F9F7,
  '100': #ecf3ee,
  '200': #D7E4DB,
  '300': #BAD4C1,
  '400': #98BEA3,
  '500': #75A884,
  '600': #5F966F,
  '700': #4F7D5C,
  '800': #3F644A,
  '900': #304A38,
  '950': #1E2E23,
);
$brand-base: #ecf3ee;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F6F9F7", "$type": "color" },
      "100": { "$value": "#ecf3ee", "$type": "color" },
      "200": { "$value": "#D7E4DB", "$type": "color" },
      "300": { "$value": "#BAD4C1", "$type": "color" },
      "400": { "$value": "#98BEA3", "$type": "color" },
      "500": { "$value": "#75A884", "$type": "color" },
      "600": { "$value": "#5F966F", "$type": "color" },
      "700": { "$value": "#4F7D5C", "$type": "color" },
      "800": { "$value": "#3F644A", "$type": "color" },
      "900": { "$value": "#304A38", "$type": "color" },
      "950": { "$value": "#1E2E23", "$type": "color" }
    },
    "brandInk": { "$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 #ecf3ee · 18.62:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.13:1
AA fail · AA large fail · AAA fail
Aa
Black text · 18.62:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #ecf3ee as text scores 1.13:1 on white and 18.62:1 on black.
Best tinted ink on it, if plain black or white feels flat: #314E3A at 8.16:1.

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
#51805E · 4.57:1
AA on white−53% L
#51805E
The quick fox
#3D6147 · 7.00:1
AAA on white−63% L
#3D6147
The quick fox
#ecf3ee · 18.62:1
AA on blackalready passes
#ecf3ee
The quick fox
#ecf3ee · 18.62:1
AAA on blackalready passes
#ecf3ee

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #69A078 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
#ecf3ee on white: 1.13:1
AA ✗ fail · AA-large · AAA
Aa
#ecf3ee on black: 18.62:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #ecf3ee as text on that neutral, and that neutral as text on #ecf3ee.

NeutralRatioBoth directions
White1.13:1AaAa
Slate 501.08:1AaAa
Slate 1001.03:1AaAa
Slate 2001.09:1AaAa
Slate 3001.32:1AaAa
Slate 4002.27:1AaAa
Slate 5004.22:1AaAa
Slate 6006.72:1AaAa
Slate 7009.18:1AaAa
Slate 80012.97:1AaAa
Slate 90015.83:1AaAa
Black18.62:1AaAa
Colour vision deficiency
true color
protanopia · #F3F2EE
deuteranopia · #F2F1EE
tritanopia · #EBF3F1

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. #ecf3ee is pinned to step 100; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F6F9F7
#ecf3ee
#D7E4DB
#BAD4C1
#98BEA3
#75A884
#5F966F
#4F7D5C
#3F644A
#304A38
#1E2E23
Base = 100Lightest = 50 · #F6F9F7Darkest = 950 · #1E2E23Text step on white = 700
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 0.002 155.1);
  --brand-100: oklch(0.94 0.004 155.1);
  --brand-200: oklch(0.88 0.006 155.1);
  --brand-300: oklch(0.80 0.008 155.1);
  --brand-400: oklch(0.72 0.009 155.1);
  --brand-500: oklch(0.64 0.010 155.1);
  --brand-600: oklch(0.56 0.010 155.1);
  --brand-700: oklch(0.48 0.009 155.1);
  --brand-800: oklch(0.40 0.008 155.1);
  --brand-900: oklch(0.32 0.007 155.1);
  --brand-950: oklch(0.24 0.005 155.1);
}

Colors that work with #ecf3ee

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#F6F9F7
Tinted page background
Border#CDDFD2
Hairlines and dividers
Muted text#598D68
Captions on the surface
Accent#84487D
Second voice, not a rival
Dark variant#314E3A
Hover, pressed, headers
Light variant#EFF5F1
Selected rows, tints
Dark surface#162219
Dark-mode background
Hover#D6E5DA
One step down in lightness
Pressed#C0D7C7
Two steps down
Disabled#F3F7F4
Chroma pulled out
Focus ring#E4F1E8
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 #ecf3ee

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

Works well for
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • White text placed on it
  • 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 #314E3A
Safe as a 1px border on white
No — use #69A078

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 high lightness makes it recede — a surface colour rather than a statement.

Worth knowing

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

Reads as
  • FormalityMedium
  • EnergyMedium
  • Weight6/100
  • TemperatureCool
  • ApproachabilityBalanced

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#F3ECF1
Analogous left#EDF3EC
Analogous right#ECF3F1
Split-complement 1#F1ECF3
Split-complement 2#F3ECED
Triadic 1#EEECF3
Triadic 2#F3EEEC
Tetradic#ECEDF3
On the wheel
Base+30°−30°+120°+240°+180°137°

#ecf3ee sits at 137°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red92.5%
Green95.3%
Blue93.3%
R · 0–255
236
0xec
G · 0–255
243
0xf3
B · 0–255
238
0xee

CMYK percentages

Cyan2.9%
Magenta0.0%
Yellow2.1%
Key (black)4.7%

Total ink coverage is 10%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#ecf3ee text on a black background

contrast 18.62:1

Card sample

#ecf3ee text on a white background

contrast 1.13:1

Card sample

#ecf3ee on grey

1.03:1

#ecf3ee on its own surface

1.06:1

#ecf3ee on its dark surface

14.58:1

CSS3 live lab

Text font color

The quick brown fox

color: #ecf3ee;
Background color
Panel with #ecf3ee background
background-color: #ecf3ee;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ecf3ee;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(236, 243, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(236, 243, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ecf3ee;
background: linear-gradient(135deg, #ecf3ee, #ECF3F3);
Gradient text

Gradient headline

background: linear-gradient(90deg, #ecf3ee, #ECF2F3);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #ecf3ee;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #ecf3ee;
caret-color: #ecf3ee;
Left rule
Pull quote or callout
border-left: 4px solid #ecf3ee;
Ring + tint
Selected chip
background: #EFF5F1;
box-shadow: inset 0 0 0 2px #ecf3ee;
Conic badge
68%
background: conic-gradient(#ecf3ee 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #ecf3ee 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(236, 243, 238, 0.5)
rgb(236 243 238 / 50%)
#ecf3ee80
hsl(137 23% 94% / 50%)
color-mix(in srgb, #ecf3ee 50%, transparent)
Alpha8-digit hexFlat on white
10%#ecf3ee1a#FDFEFD
20%#ecf3ee33#FBFDFC
40%#ecf3ee66#F7FAF8
60%#ecf3ee99#F4F8F5
80%#ecf3eecc#F0F5F1

Gradients from #ecf3ee

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, #F2F7F4, #ecf3ee 45%, #314E3A);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #ecf3ee, #D9E7E7);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #ecf3ee, #F3ECF1);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F6F9F7 0%, #ecf3ee 45%, #314E3A 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F6F9F7, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #FFFFFF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #FFFFFF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #314E3A 0%, transparent 65%), #ecf3ee;

Monochromatic scale

Palettes built from #ecf3ee

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.

#ecf3ee 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
SurfacesBadgesHighlightsEmpty states
Print note

Very light tints can drop out on uncoated stock; check it at 100% size before signing off.

On screens

Very light values are indistinguishable from white on a dim phone screen outdoors. Give it a border if the boundary matters.

In dark mode

Usable as-is on a dark surface at 18.62:1.

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.

#ecf3ee, answered

What color is #ecf3ee?

#ecf3ee is a pale soft green, closest to Mint Cream (ΔE2000 2.6). It sits at 137° on the hue wheel with 23% saturation and 94% lightness, which reads as cool.

What is the RGB value of #ecf3ee?

rgb(236, 243, 238) — 236 red, 243 green and 238 blue out of 255, or 92.5% / 95.3% / 93.3% by channel.

What is #ecf3ee in HSL and HSV?

hsl(137, 23%, 94%) and hsv(137, 3%, 95%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #ecf3ee a light or a dark color?

It is a light color. Relative luminance is 0.8811 and perceived brightness is 94%, so black text on it reaches 18.62:1.

Should I use black or white text on #ecf3ee?

Black. It scores 18.62:1 against #ecf3ee, versus 1.13:1 for white — AAA at any size.

Is #ecf3ee accessible on a white background?

#ecf3ee on white scores 1.13:1, which fails WCAG AA at every size. Darken it to #51805E to reach 4.5:1, or #3D6147 for 7:1.

What is the complementary color of #ecf3ee?

#F3ECF1 sits directly opposite on the wheel. Softer options are the split-complements #F1ECF3 and #F3ECED, which give the same contrast with far less vibration.

What colors go well with #ecf3ee?

For interface work: #F6F9F7 as the surface, #CDDFD2 for borders, #598D68 for secondary text, #84487D as an accent and #314E3A for hover and pressed states. For a palette, the analogous pair #EDF3EC and #ECF3F1 stays calm, while #F3ECF1 is the loudest partner.

What is #ecf3ee in CMYK for printing?

cmyk(3%, 0%, 2%, 5%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #ecf3ee warm or cool?

Cool — it scores 63 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #EDF3EC; nudged cooler, #ECF3F1.

Which Tailwind color is closest to #ecf3ee?

The cyan family — its 500 step is #06b6d4, ΔE2000 28.1 away. That is a visible difference, so define #ecf3ee as a custom token rather than reaching for the built-in.

How do I use #ecf3ee in Tailwind CSS?

Inline it as an arbitrary value with bg-[#ecf3ee] or text-[#ecf3ee], 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 #ecf3ee with 50% opacity?

rgba(236, 243, 238, 0.5), or #ecf3ee80 in eight-digit hex. Over white that composites to #F6F9F7; over black, #767A77.

Is #ecf3ee a web-safe color?

No. The nearest web-safe colour is #FFFFFF, ΔE2000 5.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #ecf3ee 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 #ecf3ee?

The safest is same-hue elevation: linear-gradient(135deg, #F2F7F4, #ecf3ee 45%, #314E3A). For more colour, a short hue run to #D9E7E7 keeps it rich without turning muddy.

Work with #ecf3ee in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #ecf3ee at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.