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green · neutral

#515e4c

a dark, muted green · neutral · closest name: Dark Slate Gray

Token name suggestion: Dusk Jade

RGB
81, 94, 76
HSL
103°, 11%, 33%
CMYK
14, 0, 19, 63
Luminance
0.1028

#515e4c is a dark muted green, 103° on the wheel and 52/100 on the cool side. Put white text on it (6.87:1). As text it scores 6.87:1 on white — safe at any size. Nearest name is Dark Slate Gray, nearest Tailwind family is neutral.

hsl(103 11% 33%)rgb(81 94 76)Base step 800AA inkNeutral

At a glance

Every number on this page in one read: what #515e4c is made of, how bright it looks, and which way it leans.

Hex
#515e4c
Hue
103°
green
Saturation
11%
muted
Lightness
33%
dark
Brightness
37%
HSV value
Perceived
35%
weighted brightness
Luminance
0.1028
WCAG relative
Temperature
Neutral
52/100 cool
Color family
Green
Tone
Muted
Best ink
White
6.87:1
Closest name
Dark Slate Gray
ΔE2000 11.7
Chroma
12.4
LCH, 0–130ish
OKLCH L
0.465
perceptual lightness
Tailwind
neutral
500 · ΔE 15
Web-safe
#666633
nearest of 216
Where it sits
Hue103° of 360°
Saturation11%
Lightness33%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #515e4c.

Temperature
Warm ← → Cool52% cool

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

Luminance by channel
Red17%
Green78%
Blue5%

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

Every format

HEX#515e4c
HEX (8-digit)#515e4cff
RGBrgb(81, 94, 76)
RGBArgba(81, 94, 76, 1)
HSLhsl(103, 11%, 33%)
HSV / HSBhsv(103, 19%, 37%)
HWBhwb(103 30% 63%)
CMYKcmyk(14%, 0%, 19%, 63%)
LABlab(38.3 -8.9 8.7)
LCHlch(38.3 12.4 135.6)
OKLCHoklch(0.465 0.033 137.0)
XYZ (D65)xyz(8.70, 10.28, 8.36)
Decimal5332556
Display P3color(display-p3 0.318 0.369 0.298)
Web-safe#666633

Copy-ready code

every platformclick to select
/* CSS */
color: #515e4c;
background-color: #515e4c;
/* CSS custom property */
--brand: #515e4c;
/* Tailwind (arbitrary) */
class="text-[#515e4c] bg-[#515e4c]"
/* SCSS */
$brand: #515e4c;
/* SwiftUI */
Color(red: 0.318, green: 0.369, blue: 0.298)
/* UIKit */
UIColor(red: 0.318, green: 0.369, blue: 0.298, alpha: 1)
/* Android XML */
<color name="brand">#515E4C</color>
/* Android Compose */
Color(0xFF515E4C)
/* Flutter */
Color(0xFF515E4C)
/* Python / OpenCV (BGR) */
(76, 94, 81)
/* Python / PIL (RGB) */
(81, 94, 76)
/* Java AWT */
new Color(81, 94, 76)
/* .NET */
Color.FromArgb(255, 81, 94, 76)
/* OpenGL / Unity (0–1) */
(0.3176f, 0.3686f, 0.2980f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{81,94,76}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #515e4c 85%, white);
border-color: color-mix(in oklab, #515e4c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#3D4739, #DFE4DD);
/* relative colour syntax */
--hover: hsl(from #515e4c 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: #F7F8F7;
  --brand-100: #EFF1EE;
  --brand-200: #DCE1DB;
  --brand-300: #C4CDC1;
  --brand-400: #A7B4A2;
  --brand-500: #8A9B83;
  --brand-600: #75876D;
  --brand-700: #61715B;
  --brand-800: #515e4c;
  --brand-900: #3B4337;
  --brand-950: #252A23;
  --brand: #515e4c;
  --brand-ink: #ffffff;
  --brand-surface: #F7F8F7;
  --brand-border: #D4DBD2;
  --brand-hover: #404A3C;
  --brand-pressed: #2F362C;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #1B1F19;
    --brand-ink: #DFE4DD;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F7F8F7',
        100: '#EFF1EE',
        200: '#DCE1DB',
        300: '#C4CDC1',
        400: '#A7B4A2',
        500: '#8A9B83',
        600: '#75876D',
        700: '#61715B',
        800: '#515e4c',
        900: '#3B4337',
        950: '#252A23',
        DEFAULT: '#515e4c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F7F8F7,
  '100': #EFF1EE,
  '200': #DCE1DB,
  '300': #C4CDC1,
  '400': #A7B4A2,
  '500': #8A9B83,
  '600': #75876D,
  '700': #61715B,
  '800': #515e4c,
  '900': #3B4337,
  '950': #252A23,
);
$brand-base: #515e4c;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F7F8F7", "$type": "color" },
      "100": { "$value": "#EFF1EE", "$type": "color" },
      "200": { "$value": "#DCE1DB", "$type": "color" },
      "300": { "$value": "#C4CDC1", "$type": "color" },
      "400": { "$value": "#A7B4A2", "$type": "color" },
      "500": { "$value": "#8A9B83", "$type": "color" },
      "600": { "$value": "#75876D", "$type": "color" },
      "700": { "$value": "#61715B", "$type": "color" },
      "800": { "$value": "#515e4c", "$type": "color" },
      "900": { "$value": "#3B4337", "$type": "color" },
      "950": { "$value": "#252A23", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$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#ffffff on #515e4c · 6.87:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 6.87:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.06:1
AA fail · AA large pass · AAA fail
Reading the other direction: #515e4c as text scores 6.87:1 on white and 3.06:1 on black.
Best tinted ink on it, if plain black or white feels flat: #F2F4F1 at 6.21:1.

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
#515e4c · 6.87:1
AA on whitealready passes
#515e4c
The quick fox
#4E5B4A · 7.19:1
AAA on white−1% L
#4E5B4A
The quick fox
#697A63 · 4.56:1
AA on black+10% L
#697A63
The quick fox
#8A9B84 · 7.10:1
AAA on black+23% L
#8A9B84

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #515E4C 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
#515e4c on white: 6.87:1
AA ✓ pass · AA-large · AAA
Aa
#515e4c on black: 3.06:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #515e4c as text on that neutral, and that neutral as text on #515e4c.

NeutralRatioBoth directions
White6.87:1AaAa
Slate 506.57:1AaAa
Slate 1006.27:1AaAa
Slate 2005.58:1AaAa
Slate 3004.63:1AaAa
Slate 4002.68:1AaAa
Slate 5001.44:1AaAa
Slate 6001.10:1AaAa
Slate 7001.51:1AaAa
Slate 8002.13:1AaAa
Slate 9002.60:1AaAa
Black3.06:1AaAa
Colour vision deficiency
true color
protanopia · #5F5B4B
deuteranopia · #5D5A4D
tritanopia · #515D59

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. #515e4c is pinned to step 800; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F7F8F7
#EFF1EE
#DCE1DB
#C4CDC1
#A7B4A2
#8A9B83
#75876D
#61715B
#515e4c
#3B4337
#252A23
Base = 800Lightest = 50 · #F7F8F7Darkest = 950 · #252A23Text 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 0.008 137.0);
  --brand-100: oklch(0.94 0.013 137.0);
  --brand-200: oklch(0.88 0.020 137.0);
  --brand-300: oklch(0.80 0.026 137.0);
  --brand-400: oklch(0.72 0.030 137.0);
  --brand-500: oklch(0.64 0.033 137.0);
  --brand-600: oklch(0.56 0.033 137.0);
  --brand-700: oklch(0.48 0.031 137.0);
  --brand-800: oklch(0.40 0.027 137.0);
  --brand-900: oklch(0.32 0.023 137.0);
  --brand-950: oklch(0.24 0.018 137.0);
}

Colors that work with #515e4c

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#ffffff
White wins here
Surface#F7F8F7
Tinted page background
Border#D4DBD2
Hairlines and dividers
Muted text#6D7F67
Captions on the surface
Accent#544961
Second voice, not a rival
Dark variant#3D4739
Hover, pressed, headers
Light variant#F2F4F1
Selected rows, tints
Dark surface#1B1F19
Dark-mode background
Hover#404A3C
One step down in lightness
Pressed#2F362C
Two steps down
Disabled#889981
Chroma pulled out
Focus ring#56734C
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 #515e4c

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

Works well for
  • Body text and links on white
  • Borders, dividers and quiet backgrounds
  • Long-form reading surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Black 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
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

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.

With almost no chroma left, the family association is barely present; treat it as a neutral that happens to lean this way. The low lightness adds weight and formality.

Worth knowing

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

Reads as
  • FormalityHigh
  • EnergyLow
  • Weight67/100
  • TemperatureNeutral
  • 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#594C5E
Analogous left#5A5E4C
Analogous right#4C5E50
Split-complement 1#504C5E
Split-complement 2#5E4C5A
Triadic 1#4C515E
Triadic 2#5E4C51
Tetradic#4C5A5E
On the wheel
Base+30°−30°+120°+240°+180°103°

#515e4c sits at 103°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red31.8%
Green36.9%
Blue29.8%
R · 0–255
81
0x51
G · 0–255
94
0x5e
B · 0–255
76
0x4c

CMYK percentages

Cyan13.8%
Magenta0.0%
Yellow19.1%
Key (black)63.1%

Total ink coverage is 96%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#515e4c text on a black background

contrast 3.06:1

Card sample

#515e4c text on a white background

contrast 6.87:1

Card sample

#515e4c on grey

6.27:1

#515e4c on its own surface

6.46:1

#515e4c on its dark surface

2.43:1

CSS3 live lab

Text font color

The quick brown fox

color: #515e4c;
Background color
Panel with #515e4c background
background-color: #515e4c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #515e4c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(81, 94, 76, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 94, 76, 0.45);
Border & gradient
Gradient panel
border: 3px solid #515e4c;
background: linear-gradient(135deg, #515e4c, #4C5E53);
Gradient text

Gradient headline

background: linear-gradient(90deg, #515e4c, #4C5E57);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #515e4c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #515e4c;
caret-color: #515e4c;
Left rule
Pull quote or callout
border-left: 4px solid #515e4c;
Ring + tint
Selected chip
background: #F2F4F1;
box-shadow: inset 0 0 0 2px #515e4c;
Conic badge
68%
background: conic-gradient(#515e4c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #515e4c 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(81, 94, 76, 0.5)
rgb(81 94 76 / 50%)
#515e4c80
hsl(103 11% 33% / 50%)
color-mix(in srgb, #515e4c 50%, transparent)
Alpha8-digit hexFlat on white
10%#515e4c1a#EEEFED
20%#515e4c33#DCDFDB
40%#515e4c66#B9BFB7
60%#515e4c99#979E94
80%#515e4ccc#747E70

Gradients from #515e4c

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, #6E8067, #515e4c 45%, #3D4739);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #515e4c, #3E4D45);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #515e4c, #594C5E);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #7D9076 0%, #515e4c 45%, #3D4739 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F7F8F7, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #777A63 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #5A6F60 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #3D4739 0%, transparent 65%), #515e4c;

Monochromatic scale

Palettes built from #515e4c

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.

#515e4c 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
BackgroundsBordersBody textDividers
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

Too dim on dark surfaces at 3.06:1 — lift it to #697A63 for body text, or reserve it for fills.

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.

#515e4c, answered

What color is #515e4c?

#515e4c is a dark muted green, closest to Dark Slate Gray (ΔE2000 11.7). It sits at 103° on the hue wheel with 11% saturation and 33% lightness, which reads as neutral.

What is the RGB value of #515e4c?

rgb(81, 94, 76) — 81 red, 94 green and 76 blue out of 255, or 31.8% / 36.9% / 29.8% by channel.

What is #515e4c in HSL and HSV?

hsl(103, 11%, 33%) and hsv(103, 19%, 37%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #515e4c a light or a dark color?

It is a dark color. Relative luminance is 0.1028 and perceived brightness is 35%, so white text on it reaches 6.87:1.

Should I use black or white text on #515e4c?

White. It scores 6.87:1 against #515e4c, versus 3.06:1 for black — AA at any size.

Is #515e4c accessible on a white background?

#515e4c on white scores 6.87:1, which clears AA at every size but not AAA.

What is the complementary color of #515e4c?

#594C5E sits directly opposite on the wheel. Softer options are the split-complements #504C5E and #5E4C5A, which give the same contrast with far less vibration.

What colors go well with #515e4c?

For interface work: #F7F8F7 as the surface, #D4DBD2 for borders, #6D7F67 for secondary text, #544961 as an accent and #3D4739 for hover and pressed states. For a palette, the analogous pair #5A5E4C and #4C5E50 stays calm, while #594C5E is the loudest partner.

What is #515e4c in CMYK for printing?

cmyk(14%, 0%, 19%, 63%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #515e4c warm or cool?

Neutral — it scores 52 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #585E4C; nudged cooler, #4A604C.

Which Tailwind color is closest to #515e4c?

The neutral family — its 500 step is #737373, ΔE2000 15 away. That is a visible difference, so define #515e4c as a custom token rather than reaching for the built-in.

How do I use #515e4c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#515e4c] or text-[#515e4c], 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 #515e4c with 50% opacity?

rgba(81, 94, 76, 0.5), or #515e4c80 in eight-digit hex. Over white that composites to #A8AFA6; over black, #292F26.

Is #515e4c a web-safe color?

No. The nearest web-safe colour is #666633, ΔE2000 12.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #515e4c 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 low chroma the association is faint; it behaves more like a neutral.

What gradient works with #515e4c?

The safest is same-hue elevation: linear-gradient(135deg, #6E8067, #515e4c 45%, #3D4739). For more colour, a short hue run to #3E4D45 keeps it rich without turning muddy.

Work with #515e4c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #515e4c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.