Skip to content
green · cool

#45af64

a balanced, soft green · cool · closest name: Medium Sea Green

Token name suggestion: True Basil

RGB
69, 175, 100
HSL
138°, 43%, 48%
CMYK
61, 0, 43, 31
Luminance
0.3285

#45af64 is a balanced soft green, 138° on the wheel and 70/100 on the cool side. Put black text on it (7.57:1). As text it scores 2.77:1 on white — use #34834B instead. Nearest name is Medium Sea Green, nearest Tailwind family is emerald.

hsl(138 43% 48%)rgb(69 175 100)Base step 600AAA inkCool

At a glance

Every number on this page in one read: what #45af64 is made of, how bright it looks, and which way it leans.

Hex
#45af64
Hue
138°
green
Saturation
43%
soft
Lightness
48%
balanced
Brightness
69%
HSV value
Perceived
56%
weighted brightness
Luminance
0.3285
WCAG relative
Temperature
Cool
70/100 cool
Color family
Green
Tone
Soft
Best ink
Black
7.57:1
Closest name
Medium Sea Green
ΔE2000 2.7
Chroma
55.7
LCH, 0–130ish
OKLCH L
0.674
perceptual lightness
Tailwind
emerald
500 · ΔE 6.5
Web-safe
#339966
nearest of 216
Where it sits
Hue138° of 360°
Saturation43%
Lightness48%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #45af64.

Temperature
Warm ← → Cool70% 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
Red4%
Green93%
Blue3%

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

Every format

HEX#45af64
HEX (8-digit)#45af64ff
RGBrgb(69, 175, 100)
RGBArgba(69, 175, 100, 1)
HSLhsl(138, 43%, 48%)
HSV / HSBhsv(138, 61%, 69%)
HWBhwb(138 27% 31%)
CMYKcmyk(61%, 0%, 43%, 31%)
LABlab(64.0 -47.2 29.6)
LCHlch(64.0 55.7 147.9)
OKLCHoklch(0.674 0.147 150.2)
XYZ (D65)xyz(20.08, 32.84, 17.34)
Decimal4566884
Display P3color(display-p3 0.271 0.686 0.392)
Web-safe#339966

Copy-ready code

every platformclick to select
/* CSS */
color: #45af64;
background-color: #45af64;
/* CSS custom property */
--brand: #45af64;
/* Tailwind (arbitrary) */
class="text-[#45af64] bg-[#45af64]"
/* SCSS */
$brand: #45af64;
/* SwiftUI */
Color(red: 0.271, green: 0.686, blue: 0.392)
/* UIKit */
UIColor(red: 0.271, green: 0.686, blue: 0.392, alpha: 1)
/* Android XML */
<color name="brand">#45AF64</color>
/* Android Compose */
Color(0xFF45AF64)
/* Flutter */
Color(0xFF45AF64)
/* Python / OpenCV (BGR) */
(100, 175, 69)
/* Python / PIL (RGB) */
(69, 175, 100)
/* Java AWT */
new Color(69, 175, 100)
/* .NET */
Color.FromArgb(255, 69, 175, 100)
/* OpenGL / Unity (0–1) */
(0.2706f, 0.6863f, 0.3922f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{69,175,100}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #45af64 85%, white);
border-color: color-mix(in oklab, #45af64 40%, transparent);
/* theme-aware in one line */
color: light-dark(#245B34, #D3EEDB);
/* relative colour syntax */
--hover: hsl(from #45af64 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: #F5FAF6;
  --brand-100: #EBF5EE;
  --brand-200: #D1EBD9;
  --brand-300: #AFDFBD;
  --brand-400: #86CF9C;
  --brand-500: #5EBF7B;
  --brand-600: #45af64;
  --brand-700: #3A9254;
  --brand-800: #2E7543;
  --brand-900: #255633;
  --brand-950: #173620;
  --brand: #45af64;
  --brand-ink: #000000;
  --brand-surface: #F4FAF6;
  --brand-border: #C4E8CF;
  --brand-hover: #3B9555;
  --brand-pressed: #317C47;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142419;
    --brand-ink: #D3EEDB;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FAF6',
        100: '#EBF5EE',
        200: '#D1EBD9',
        300: '#AFDFBD',
        400: '#86CF9C',
        500: '#5EBF7B',
        600: '#45af64',
        700: '#3A9254',
        800: '#2E7543',
        900: '#255633',
        950: '#173620',
        DEFAULT: '#45af64',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FAF6,
  '100': #EBF5EE,
  '200': #D1EBD9,
  '300': #AFDFBD,
  '400': #86CF9C,
  '500': #5EBF7B,
  '600': #45af64,
  '700': #3A9254,
  '800': #2E7543,
  '900': #255633,
  '950': #173620,
);
$brand-base: #45af64;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FAF6", "$type": "color" },
      "100": { "$value": "#EBF5EE", "$type": "color" },
      "200": { "$value": "#D1EBD9", "$type": "color" },
      "300": { "$value": "#AFDFBD", "$type": "color" },
      "400": { "$value": "#86CF9C", "$type": "color" },
      "500": { "$value": "#5EBF7B", "$type": "color" },
      "600": { "$value": "#45af64", "$type": "color" },
      "700": { "$value": "#3A9254", "$type": "color" },
      "800": { "$value": "#2E7543", "$type": "color" },
      "900": { "$value": "#255633", "$type": "color" },
      "950": { "$value": "#173620", "$type": "color" }
    },
    "brandInk": { "$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 #45af64 · 7.57:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.77:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.57:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #45af64 as text scores 2.77:1 on white and 7.57:1 on black.
Best tinted ink on it, if plain black or white feels flat: #245B34 at 2.89:1.

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
#34834B · 4.67:1
AA on white−12% L
#34834B
The quick fox
#276238 · 7.27:1
AAA on white−21% L
#276238
The quick fox
#45af64 · 7.57:1
AA on blackalready passes
#45af64
The quick fox
#45af64 · 7.57:1
AAA on blackalready passes
#45af64

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #42A760 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
#45af64 on white: 2.77:1
AA ✗ fail · AA-large · AAA
Aa
#45af64 on black: 7.57:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #45af64 as text on that neutral, and that neutral as text on #45af64.

NeutralRatioBoth directions
White2.77:1AaAa
Slate 502.65:1AaAa
Slate 1002.53:1AaAa
Slate 2002.25:1AaAa
Slate 3001.87:1AaAa
Slate 4001.08:1AaAa
Slate 5001.72:1AaAa
Slate 6002.73:1AaAa
Slate 7003.73:1AaAa
Slate 8005.27:1AaAa
Slate 9006.43:1AaAa
Black7.57:1AaAa
Colour vision deficiency
true color
protanopia · #B0A15F
deuteranopia · #A29769
tritanopia · #26AC9D

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. #45af64 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.

#F5FAF6
#EBF5EE
#D1EBD9
#AFDFBD
#86CF9C
#5EBF7B
#45af64
#3A9254
#2E7543
#255633
#173620
Base = 600Lightest = 50 · #F5FAF6Darkest = 950 · #173620Text 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 0.037 150.2);
  --brand-100: oklch(0.94 0.059 150.2);
  --brand-200: oklch(0.88 0.088 150.2);
  --brand-300: oklch(0.80 0.115 150.2);
  --brand-400: oklch(0.72 0.135 150.2);
  --brand-500: oklch(0.64 0.147 150.2);
  --brand-600: oklch(0.56 0.147 150.2);
  --brand-700: oklch(0.48 0.138 150.2);
  --brand-800: oklch(0.40 0.123 150.2);
  --brand-900: oklch(0.32 0.103 150.2);
  --brand-950: oklch(0.24 0.081 150.2);
}

Colors that work with #45af64

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#F4FAF6
Tinted page background
Border#C4E8CF
Hairlines and dividers
Muted text#4B9B62
Captions on the surface
Accent#B440AF
Second voice, not a rival
Dark variant#245B34
Hover, pressed, headers
Light variant#EDF8F0
Selected rows, tints
Dark surface#142419
Dark-mode background
Hover#3B9555
One step down in lightness
Pressed#317C47
Two steps down
Disabled#A1C3AB
Chroma pulled out
Focus ring#42C669
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 #45af64

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 #245B34
Safe as a 1px border on white
No — use #42A760

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
  • 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#AF4590
Analogous left#5BAF45
Analogous right#45AF99
Split-complement 1#9945AF
Split-complement 2#AF455B
Triadic 1#6445AF
Triadic 2#AF6445
Tetradic#455BAF
On the wheel
Base+30°−30°+120°+240°+180°138°

#45af64 sits at 138°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red27.1%
Green68.6%
Blue39.2%
R · 0–255
69
0x45
G · 0–255
175
0xaf
B · 0–255
100
0x64

CMYK percentages

Cyan60.6%
Magenta0.0%
Yellow42.9%
Key (black)31.4%

Total ink coverage is 135%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#45af64 text on a black background

contrast 7.57:1

Card sample

#45af64 text on a white background

contrast 2.77:1

Card sample

#45af64 on grey

2.53:1

#45af64 on its own surface

2.62:1

#45af64 on its dark surface

5.84:1

CSS3 live lab

Text font color

The quick brown fox

color: #45af64;
Background color
Panel with #45af64 background
background-color: #45af64;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #45af64;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(69, 175, 100, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(69, 175, 100, 0.45);
Border & gradient
Gradient panel
border: 3px solid #45af64;
background: linear-gradient(135deg, #45af64, #45AFAA);
Gradient text

Gradient headline

background: linear-gradient(90deg, #45af64, #4599AF);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #45af64;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #45af64;
caret-color: #45af64;
Left rule
Pull quote or callout
border-left: 4px solid #45af64;
Ring + tint
Selected chip
background: #EDF8F0;
box-shadow: inset 0 0 0 2px #45af64;
Conic badge
68%
background: conic-gradient(#45af64 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #45af64 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(69, 175, 100, 0.5)
rgb(69 175 100 / 50%)
#45af6480
hsl(138 43% 48% / 50%)
color-mix(in srgb, #45af64 50%, transparent)
Alpha8-digit hexFlat on white
10%#45af641a#ECF7F0
20%#45af6433#DAEFE0
40%#45af6466#B5DFC1
60%#45af6499#8FCFA2
80%#45af64cc#6ABF83

Gradients from #45af64

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, #6CC586, #45af64 45%, #245B34);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #45af64, #3C9599);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #45af64, #AF4590);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #82CE98 0%, #45af64 45%, #245B34 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF6, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #80C265 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #56BCB0 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #245B34 0%, transparent 65%), #45af64;

Monochromatic scale

Palettes built from #45af64

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.

#45af64 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 7.57:1.

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.

#45af64, answered

What color is #45af64?

#45af64 is a balanced soft green, closest to Medium Sea Green (ΔE2000 2.7). It sits at 138° on the hue wheel with 43% saturation and 48% lightness, which reads as cool.

What is the RGB value of #45af64?

rgb(69, 175, 100) — 69 red, 175 green and 100 blue out of 255, or 27.1% / 68.6% / 39.2% by channel.

What is #45af64 in HSL and HSV?

hsl(138, 43%, 48%) and hsv(138, 61%, 69%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #45af64 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3285 and perceived brightness is 56%, so black text on it reaches 7.57:1.

Should I use black or white text on #45af64?

Black. It scores 7.57:1 against #45af64, versus 2.77:1 for white — AAA at any size.

Is #45af64 accessible on a white background?

#45af64 on white scores 2.77:1, which fails WCAG AA at every size. Darken it to #34834B to reach 4.5:1, or #276238 for 7:1.

What is the complementary color of #45af64?

#AF4590 sits directly opposite on the wheel. Softer options are the split-complements #9945AF and #AF455B, which give the same contrast with far less vibration.

What colors go well with #45af64?

For interface work: #F4FAF6 as the surface, #C4E8CF for borders, #4B9B62 for secondary text, #B440AF as an accent and #245B34 for hover and pressed states. For a palette, the analogous pair #5BAF45 and #45AF99 stays calm, while #AF4590 is the loudest partner.

What is #45af64 in CMYK for printing?

cmyk(61%, 0%, 43%, 31%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #45af64 warm or cool?

Cool — it scores 70 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #4DAF45; nudged cooler, #43B18B.

Which Tailwind color is closest to #45af64?

The emerald family — its 500 step is #10b981, ΔE2000 6.5 away. That is a visible difference, so define #45af64 as a custom token rather than reaching for the built-in.

How do I use #45af64 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#45af64] or text-[#45af64], 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 #45af64 with 50% opacity?

rgba(69, 175, 100, 0.5), or #45af6480 in eight-digit hex. Over white that composites to #A2D7B2; over black, #235832.

Is #45af64 a web-safe color?

No. The nearest web-safe colour is #339966, ΔE2000 8.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #45af64 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 #45af64?

The safest is same-hue elevation: linear-gradient(135deg, #6CC586, #45af64 45%, #245B34). For more colour, a short hue run to #3C9599 keeps it rich without turning muddy.

Work with #45af64 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #45af64 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.