#28331c
a deep, soft green · neutral · closest name: Dark Slate Gray
Token name suggestion: Midnight Basil
#28331c is a deep soft green, 89° on the wheel and 49/100 on the cool side. Put white text on it (13.29:1). As text it scores 13.29:1 on white — safe at any size. Nearest name is Dark Slate Gray, nearest Tailwind family is neutral.
At a glance
Every number on this page in one read: what #28331c is made of, how bright it looks, and which way it leans.
Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #28331c.
Reads neutral. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.
Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.
Every format
| HEX | #28331c |
| HEX (8-digit) | #28331cff |
| RGB | rgb(40, 51, 28) |
| RGBA | rgba(40, 51, 28, 1) |
| HSL | hsl(89, 29%, 16%) |
| HSV / HSB | hsv(89, 45%, 20%) |
| HWB | hwb(89 11% 80%) |
| CMYK | cmyk(22%, 0%, 45%, 80%) |
| LAB | lab(19.6 -9.7 13.1) |
| LCH | lch(19.6 16.3 126.5) |
| OKLCH | oklch(0.304 0.042 129.4) |
| XYZ (D65) | xyz(2.27, 2.90, 1.54) |
| Decimal | 2634524 |
| Display P3 | color(display-p3 0.157 0.200 0.110) |
| Web-safe | #333333 |
Copy-ready code
/* CSS */
color: #28331c;
background-color: #28331c;
/* CSS custom property */
--brand: #28331c;
/* Tailwind (arbitrary) */
class="text-[#28331c] bg-[#28331c]"
/* SCSS */
$brand: #28331c;
/* SwiftUI */
Color(red: 0.157, green: 0.200, blue: 0.110)
/* UIKit */
UIColor(red: 0.157, green: 0.200, blue: 0.110, alpha: 1)
/* Android XML */
<color name="brand">#28331C</color>
/* Android Compose */
Color(0xFF28331C)
/* Flutter */
Color(0xFF28331C)
/* Python / OpenCV (BGR) */
(28, 51, 40)
/* Python / PIL (RGB) */
(40, 51, 28)
/* Java AWT */
new Color(40, 51, 28)
/* .NET */
Color.FromArgb(255, 40, 51, 28)
/* OpenGL / Unity (0–1) */
(0.1569f, 0.2000f, 0.1098f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{40,51,28}/* mix without leaving CSS */ background: color-mix(in oklab, #28331c 85%, white); border-color: color-mix(in oklab, #28331c 40%, transparent); /* theme-aware in one line */ color: light-dark(#41522D, #E1E9D7); /* relative colour syntax */ --hover: hsl(from #28331c h s calc(l - 7));
Design tokens
The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.
:root {
--brand-50: #F7F9F6;
--brand-100: #F0F3EC;
--brand-200: #DEE6D5;
--brand-300: #C8D7B7;
--brand-400: #ACC392;
--brand-500: #90AF6E;
--brand-600: #7C9E57;
--brand-700: #678448;
--brand-800: #53693A;
--brand-900: #3E4E2D;
--brand-950: #28331c;
--brand: #28331c;
--brand-ink: #ffffff;
--brand-surface: #F7FAF5;
--brand-border: #D7E2CA;
--brand-hover: #161C0F;
--brand-pressed: #040503;
}
@media (prefers-color-scheme: dark) {
:root {
--brand-surface: #1C2414;
--brand-ink: #E1E9D7;
}
}theme: {
extend: {
colors: {
brand: {
50: '#F7F9F6',
100: '#F0F3EC',
200: '#DEE6D5',
300: '#C8D7B7',
400: '#ACC392',
500: '#90AF6E',
600: '#7C9E57',
700: '#678448',
800: '#53693A',
900: '#3E4E2D',
950: '#28331c',
DEFAULT: '#28331c',
},
},
},
}$brand: (
'50': #F7F9F6,
'100': #F0F3EC,
'200': #DEE6D5,
'300': #C8D7B7,
'400': #ACC392,
'500': #90AF6E,
'600': #7C9E57,
'700': #678448,
'800': #53693A,
'900': #3E4E2D,
'950': #28331c,
);
$brand-base: #28331c;
$brand-ink: #ffffff;
@function brand($step) { @return map-get($brand, $step); }{
"color": {
"brand": {
"50": { "$value": "#F7F9F6", "$type": "color" },
"100": { "$value": "#F0F3EC", "$type": "color" },
"200": { "$value": "#DEE6D5", "$type": "color" },
"300": { "$value": "#C8D7B7", "$type": "color" },
"400": { "$value": "#ACC392", "$type": "color" },
"500": { "$value": "#90AF6E", "$type": "color" },
"600": { "$value": "#7C9E57", "$type": "color" },
"700": { "$value": "#678448", "$type": "color" },
"800": { "$value": "#53693A", "$type": "color" },
"900": { "$value": "#3E4E2D", "$type": "color" },
"950": { "$value": "#28331c", "$type": "color" }
},
"brandInk": { "$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.
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.
Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #28331C 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
Contrast is symmetric, so each row covers both directions: #28331c as text on that neutral, and that neutral as text on #28331c.
| Neutral | Ratio | Verdict | Both directions |
|---|---|---|---|
| White#ffffff | 13.29:1 | AAAA lgAAA | AaAa |
| Slate 50#f8fafc | 12.70:1 | AAAA lgAAA | AaAa |
| Slate 100#f1f5f9 | 12.13:1 | AAAA lgAAA | AaAa |
| Slate 200#e2e8f0 | 10.78:1 | AAAA lgAAA | AaAa |
| Slate 300#cbd5e1 | 8.95:1 | AAAA lgAAA | AaAa |
| Slate 400#94a3b8 | 5.18:1 | AAAA lgAAA | AaAa |
| Slate 500#64748b | 2.79:1 | AAAA lgAAA | AaAa |
| Slate 600#475569 | 1.75:1 | AAAA lgAAA | AaAa |
| Slate 700#334155 | 1.28:1 | AAAA lgAAA | AaAa |
| Slate 800#1e293b | 1.10:1 | AAAA lgAAA | AaAa |
| Slate 900#0f172a | 1.34:1 | AAAA lgAAA | AaAa |
| Black#000000 | 1.58:1 | AAAA lgAAA | AaAa |
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. #28331c is pinned to step 950; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.
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.
:root {
--brand-50: oklch(0.97 0.010 129.4);
--brand-100: oklch(0.94 0.017 129.4);
--brand-200: oklch(0.88 0.025 129.4);
--brand-300: oklch(0.80 0.033 129.4);
--brand-400: oklch(0.72 0.038 129.4);
--brand-500: oklch(0.64 0.042 129.4);
--brand-600: oklch(0.56 0.042 129.4);
--brand-700: oklch(0.48 0.039 129.4);
--brand-800: oklch(0.40 0.035 129.4);
--brand-900: oklch(0.32 0.029 129.4);
--brand-950: oklch(0.24 0.023 129.4);
}Colors that work with #28331c
Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.
Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.
Lightness flips, hue holds. The accent stays the anchor in both themes.
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.
Focus ring uses the light variant so the field still reads as one shape.
The file stays available for seven days. Download it before it expires.
How to use #28331c
Derived from its contrast, chroma and lightness — not from taste.
- ✓Body text and links on white
- ✓Charts, tags and secondary surfaces
- ✓Headers, footers and dark-mode surfaces
- ✓Brand accents, badges and data highlights
- ⚠Text on black or near-black surfaces
- ⚠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
Meaning and mood
What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.
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 low lightness adds weight and formality.
Red/green pairs are the most common colour-blindness failure — never let the two carry meaning alone.
- FormalityHigh
- EnergyMedium
- Weight85/100
- 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 | #271C33 | Directly opposite — maximum tension | |
| Analogous left | #33331C | Neighbour, quieter | |
| Analogous right | #1D331C | Neighbour, quieter | |
| Split-complement 1 | #1C1D33 | Contrast without the clash | |
| Split-complement 2 | #331C33 | Contrast without the clash | |
| Triadic 1 | #1C2833 | Even thirds — balanced and loud | |
| Triadic 2 | #331C28 | Even thirds — balanced and loud | |
| Tetradic | #1C3333 | Fourth corner of the square scheme |
#28331c sits at 89°. Every dot is a harmony position and links to its own page in the table alongside.
RGB percentages
CMYK percentages
Total ink coverage is 147%. Most commercial presses cap around 300% — above that, sheets stop drying properly.
Color previews
#28331c text on a black background
contrast 1.58:1
#28331c text on a white background
contrast 13.29:1
#28331c on grey
12.13:1
#28331c on its own surface
12.62:1
#28331c on its dark surface
1.20:1
CSS3 live lab
The quick brown fox
color: #28331c;
background-color: #28331c;
Glowing headline
text-shadow: 2px 2px 8px #28331c;
Soft neon halo
text-shadow: 0 0 14px rgba(40, 51, 28, 0.45);
box-shadow: 0 12px 32px -8px rgba(40, 51, 28, 0.45);
border: 3px solid #28331c; background: linear-gradient(135deg, #28331c, #1C331F);
Gradient headline
background: linear-gradient(90deg, #28331c, #1C3325); -webkit-background-clip: text; color: transparent;
outline: 2px solid #28331c; outline-offset: 3px;
Marked up text
text-decoration-color: #28331c; caret-color: #28331c;
border-left: 4px solid #28331c;
background: #F2F6EF; box-shadow: inset 0 0 0 2px #28331c;
background: conic-gradient(#28331c 68%, #e2e8f0 0);
Transparency
What each alpha value actually composites to. The top row is #28331c 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.
rgba(40, 51, 28, 0.5) rgb(40 51 28 / 50%) #28331c80 hsl(89 29% 16% / 50%) color-mix(in srgb, #28331c 50%, transparent)
| Alpha | 8-digit hex | Flat on white |
|---|---|---|
| 10% | #28331c1a | #EAEBE8 |
| 20% | #28331c33 | #D4D6D2 |
| 40% | #28331c66 | #A9ADA4 |
| 60% | #28331c99 | #7E8577 |
| 80% | #28331ccc | #535C49 |
Gradients from #28331c
Six recipes, each built from this hex and shown with the exact CSS that produced it.
background: linear-gradient(135deg, #475B32, #28331c 45%, #41522D);
background: linear-gradient(120deg, #28331c, #111F14);
background: linear-gradient(90deg, #28331c, #271C33);
background: radial-gradient(120% 120% at 20% 0%, #576E3D 0%, #28331c 45%, #41522D 100%);
background: linear-gradient(180deg, #F7FAF5, #ffffff);
background: radial-gradient(60% 60% at 15% 20%, #54502E 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #274729 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #41522D 0%, transparent 65%), #28331c;
Monochromatic scale
Palettes built from #28331c
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.
Closest color with a full write-up: Hunter Green (#355e3b) — ΔE2000 15 away, with its history, psychology and brand usage.
#28331c in the real world
Where a color in this family tends to land, and the interface roles it is usually asked to play.
Converts to four-color process without much drama. Proof it anyway.
Very dark values collapse into each other on cheap panels — leave more lightness between your darkest steps than the numbers suggest.
Too dim on dark surfaces at 1.58:1 — lift it to #637F46 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.
#28331c, answered
What color is #28331c?
#28331c is a deep soft green, closest to Dark Slate Gray (ΔE2000 15.4). It sits at 89° on the hue wheel with 29% saturation and 16% lightness, which reads as neutral.
What is the RGB value of #28331c?
rgb(40, 51, 28) — 40 red, 51 green and 28 blue out of 255, or 15.7% / 20% / 11% by channel.
What is #28331c in HSL and HSV?
hsl(89, 29%, 16%) and hsv(89, 45%, 20%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.
Is #28331c a light or a dark color?
It is a dark color. Relative luminance is 0.0290 and perceived brightness is 18%, so white text on it reaches 13.29:1.
Should I use black or white text on #28331c?
White. It scores 13.29:1 against #28331c, versus 1.58:1 for black — AAA at any size.
Is #28331c accessible on a white background?
#28331c on white scores 13.29:1, which clears AAA at every size.
What is the complementary color of #28331c?
#271C33 sits directly opposite on the wheel. Softer options are the split-complements #1C1D33 and #331C33, which give the same contrast with far less vibration.
What colors go well with #28331c?
For interface work: #F7FAF5 as the surface, #D7E2CA for borders, #749451 for secondary text, #201A35 as an accent and #41522D for hover and pressed states. For a palette, the analogous pair #33331C and #1D331C stays calm, while #271C33 is the loudest partner.
What is #28331c in CMYK for printing?
cmyk(22%, 0%, 45%, 80%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.
Is #28331c warm or cool?
Neutral — it scores 49 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #30331C; nudged cooler, #1F341B.
Which Tailwind color is closest to #28331c?
The neutral family — its 500 step is #737373, ΔE2000 27 away. That is a visible difference, so define #28331c as a custom token rather than reaching for the built-in.
How do I use #28331c in Tailwind CSS?
Inline it as an arbitrary value with bg-[#28331c] or text-[#28331c], 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 #28331c with 50% opacity?
rgba(40, 51, 28, 0.5), or #28331c80 in eight-digit hex. Over white that composites to #94998E; over black, #141A0E.
Is #28331c a web-safe color?
No. The nearest web-safe colour is #333333, ΔE2000 13.6 away. The palette only matters for legacy displays and some email clients now.
What does the color #28331c 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 #28331c?
The safest is same-hue elevation: linear-gradient(135deg, #475B32, #28331c 45%, #41522D). For more colour, a short hue run to #111F14 keeps it rich without turning muddy.
Work with #28331c in the Color Lab
Every tool opens with this colour already loaded.
Every value on this page is computed from #28331c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.