#28bf8c
a balanced, vivid green · cool · closest name: Medium Sea Green
Token name suggestion: True Basil
#28bf8c is a balanced vivid green, 160° on the wheel and 79/100 on the cool side. Put black text on it (8.92:1). As text it scores 2.35:1 on white — use #1C8461 instead. Nearest name is Medium Sea Green, nearest Tailwind family is emerald.
At a glance
Every number on this page in one read: what #28bf8c 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 #28bf8c.
Reads cool. 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 | #28bf8c |
| HEX (8-digit) | #28bf8cff |
| RGB | rgb(40, 191, 140) |
| RGBA | rgba(40, 191, 140, 1) |
| HSL | hsl(160, 65%, 45%) |
| HSV / HSB | hsv(160, 79%, 75%) |
| HWB | hwb(160 16% 25%) |
| CMYK | cmyk(79%, 0%, 27%, 25%) |
| LAB | lab(69.2 -50.1 15.1) |
| LCH | lch(69.2 52.3 163.3) |
| OKLCH | oklch(0.717 0.143 164.4) |
| XYZ (D65) | xyz(24.24, 39.60, 31.17) |
| Decimal | 2670476 |
| Display P3 | color(display-p3 0.157 0.749 0.549) |
| Web-safe | #33CC99 |
Copy-ready code
/* CSS */
color: #28bf8c;
background-color: #28bf8c;
/* CSS custom property */
--brand: #28bf8c;
/* Tailwind (arbitrary) */
class="text-[#28bf8c] bg-[#28bf8c]"
/* SCSS */
$brand: #28bf8c;
/* SwiftUI */
Color(red: 0.157, green: 0.749, blue: 0.549)
/* UIKit */
UIColor(red: 0.157, green: 0.749, blue: 0.549, alpha: 1)
/* Android XML */
<color name="brand">#28BF8C</color>
/* Android Compose */
Color(0xFF28BF8C)
/* Flutter */
Color(0xFF28BF8C)
/* Python / OpenCV (BGR) */
(140, 191, 40)
/* Python / PIL (RGB) */
(40, 191, 140)
/* Java AWT */
new Color(40, 191, 140)
/* .NET */
Color.FromArgb(255, 40, 191, 140)
/* OpenGL / Unity (0–1) */
(0.1569f, 0.7490f, 0.5490f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{40,191,140}/* mix without leaving CSS */ background: color-mix(in oklab, #28bf8c 85%, white); border-color: color-mix(in oklab, #28bf8c 40%, transparent); /* theme-aware in one line */ color: light-dark(#16694D, #D3EEE5); /* relative colour syntax */ --hover: hsl(from #28bf8c h s calc(l - 7));
Design tokens
The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.
:root {
--brand-50: #F3FBF9;
--brand-100: #E8F8F2;
--brand-200: #CBF1E4;
--brand-300: #A2ECD3;
--brand-400: #74E2BD;
--brand-500: #45D8A7;
--brand-600: #28bf8c;
--brand-700: #23A97C;
--brand-800: #1C8763;
--brand-900: #186249;
--brand-950: #0F3D2E;
--brand: #28bf8c;
--brand-ink: #000000;
--brand-surface: #F4FAF8;
--brand-border: #C0EDDD;
--brand-hover: #22A276;
--brand-pressed: #1C8461;
}
@media (prefers-color-scheme: dark) {
:root {
--brand-surface: #14241F;
--brand-ink: #D3EEE5;
}
}theme: {
extend: {
colors: {
brand: {
50: '#F3FBF9',
100: '#E8F8F2',
200: '#CBF1E4',
300: '#A2ECD3',
400: '#74E2BD',
500: '#45D8A7',
600: '#28bf8c',
700: '#23A97C',
800: '#1C8763',
900: '#186249',
950: '#0F3D2E',
DEFAULT: '#28bf8c',
},
},
},
}$brand: (
'50': #F3FBF9,
'100': #E8F8F2,
'200': #CBF1E4,
'300': #A2ECD3,
'400': #74E2BD,
'500': #45D8A7,
'600': #28bf8c,
'700': #23A97C,
'800': #1C8763,
'900': #186249,
'950': #0F3D2E,
);
$brand-base: #28bf8c;
$brand-ink: #000000;
@function brand($step) { @return map-get($brand, $step); }{
"color": {
"brand": {
"50": { "$value": "#F3FBF9", "$type": "color" },
"100": { "$value": "#E8F8F2", "$type": "color" },
"200": { "$value": "#CBF1E4", "$type": "color" },
"300": { "$value": "#A2ECD3", "$type": "color" },
"400": { "$value": "#74E2BD", "$type": "color" },
"500": { "$value": "#45D8A7", "$type": "color" },
"600": { "$value": "#28bf8c", "$type": "color" },
"700": { "$value": "#23A97C", "$type": "color" },
"800": { "$value": "#1C8763", "$type": "color" },
"900": { "$value": "#186249", "$type": "color" },
"950": { "$value": "#0F3D2E", "$type": "color" }
},
"brandInk": { "$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.
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 #23A679 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: #28bf8c as text on that neutral, and that neutral as text on #28bf8c.
| Neutral | Ratio | Verdict | Both directions |
|---|---|---|---|
| White#ffffff | 2.35:1 | AAAA lgAAA | AaAa |
| Slate 50#f8fafc | 2.25:1 | AAAA lgAAA | AaAa |
| Slate 100#f1f5f9 | 2.15:1 | AAAA lgAAA | AaAa |
| Slate 200#e2e8f0 | 1.91:1 | AAAA lgAAA | AaAa |
| Slate 300#cbd5e1 | 1.59:1 | AAAA lgAAA | AaAa |
| Slate 400#94a3b8 | 1.09:1 | AAAA lgAAA | AaAa |
| Slate 500#64748b | 2.02:1 | AAAA lgAAA | AaAa |
| Slate 600#475569 | 3.22:1 | AAAA lgAAA | AaAa |
| Slate 700#334155 | 4.40:1 | AAAA lgAAA | AaAa |
| Slate 800#1e293b | 6.21:1 | AAAA lgAAA | AaAa |
| Slate 900#0f172a | 7.58:1 | AAAA lgAAA | AaAa |
| Black#000000 | 8.92:1 | 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. #28bf8c 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.
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 0.036 164.4);
--brand-100: oklch(0.94 0.057 164.4);
--brand-200: oklch(0.88 0.086 164.4);
--brand-300: oklch(0.80 0.111 164.4);
--brand-400: oklch(0.72 0.131 164.4);
--brand-500: oklch(0.64 0.143 164.4);
--brand-600: oklch(0.56 0.143 164.4);
--brand-700: oklch(0.48 0.134 164.4);
--brand-800: oklch(0.40 0.120 164.4);
--brand-900: oklch(0.32 0.100 164.4);
--brand-950: oklch(0.24 0.078 164.4);
}Colors that work with #28bf8c
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 #28bf8c
Derived from its contrast, chroma and lightness — not from taste.
- ✓Text and icons on dark surfaces
- ✓Primary buttons and calls to action
- ✓Focus rings, active and selected states
- ✓Brand accents, badges and data highlights
- ✓Chart series and data categories
- ⚠Text of any size on white — fails WCAG AA
- ⚠Full-page backgrounds — tiring over long sessions
- ⚠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.
This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The mid lightness keeps it versatile in both themes.
Red/green pairs are the most common colour-blindness failure — never let the two carry meaning alone.
- FormalityMedium
- EnergyMedium-high
- Weight55/100
- 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 | #BF285B | Directly opposite — maximum tension | |
| Analogous left | #28BF40 | Neighbour, quieter | |
| Analogous right | #28A7BF | Neighbour, quieter | |
| Split-complement 1 | #BF28A7 | Contrast without the clash | |
| Split-complement 2 | #BF4028 | Contrast without the clash | |
| Triadic 1 | #8C28BF | Even thirds — balanced and loud | |
| Triadic 2 | #BF8C28 | Even thirds — balanced and loud | |
| Tetradic | #4028BF | Fourth corner of the square scheme |
#28bf8c sits at 160°. Every dot is a harmony position and links to its own page in the table alongside.
RGB percentages
CMYK percentages
Total ink coverage is 131%. Most commercial presses cap around 300% — above that, sheets stop drying properly.
Color previews
#28bf8c text on a black background
contrast 8.92:1
#28bf8c text on a white background
contrast 2.35:1
#28bf8c on grey
2.15:1
#28bf8c on its own surface
2.23:1
#28bf8c on its dark surface
6.85:1
CSS3 live lab
The quick brown fox
color: #28bf8c;
background-color: #28bf8c;
Glowing headline
text-shadow: 2px 2px 8px #28bf8c;
Soft neon halo
text-shadow: 0 0 14px rgba(40, 191, 140, 0.45);
box-shadow: 0 12px 32px -8px rgba(40, 191, 140, 0.45);
border: 3px solid #28bf8c; background: linear-gradient(135deg, #28bf8c, #288DBF);
Gradient headline
background: linear-gradient(90deg, #28bf8c, #2868BF); -webkit-background-clip: text; color: transparent;
outline: 2px solid #28bf8c; outline-offset: 3px;
Marked up text
text-decoration-color: #28bf8c; caret-color: #28bf8c;
border-left: 4px solid #28bf8c;
background: #EAFBF5; box-shadow: inset 0 0 0 2px #28bf8c;
background: conic-gradient(#28bf8c 68%, #e2e8f0 0);
Transparency
What each alpha value actually composites to. The top row is #28bf8c 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, 191, 140, 0.5) rgb(40 191 140 / 50%) #28bf8c80 hsl(160 65% 45% / 50%) color-mix(in srgb, #28bf8c 50%, transparent)
| Alpha | 8-digit hex | Flat on white |
|---|---|---|
| 10% | #28bf8c1a | #EAF9F4 |
| 20% | #28bf8c33 | #D4F2E8 |
| 40% | #28bf8c66 | #A9E5D1 |
| 60% | #28bf8c99 | #7ED9BA |
| 80% | #28bf8ccc | #53CCA3 |
Gradients from #28bf8c
Six recipes, each built from this hex and shown with the exact CSS that produced it.
background: linear-gradient(135deg, #4BD9A9, #28bf8c 45%, #16694D);
background: linear-gradient(120deg, #28bf8c, #2370A6);
background: linear-gradient(90deg, #28bf8c, #BF285B);
background: radial-gradient(120% 120% at 20% 0%, #64DFB5 0%, #28bf8c 45%, #16694D 100%);
background: linear-gradient(180deg, #F4FAF8, #ffffff);
background: radial-gradient(60% 60% at 15% 20%, #42D84E 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #32ACD4 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #16694D 0%, transparent 65%), #28bf8c;
Monochromatic scale
Palettes built from #28bf8c
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: Emerald (#50c878) — ΔE2000 7.2 away, with its history, psychology and brand usage.
#28bf8c 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.
Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.
Usable as-is on a dark surface at 8.92:1.
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.
#28bf8c, answered
What color is #28bf8c?
#28bf8c is a balanced vivid green, closest to Medium Sea Green (ΔE2000 5.6). It sits at 160° on the hue wheel with 65% saturation and 45% lightness, which reads as cool.
What is the RGB value of #28bf8c?
rgb(40, 191, 140) — 40 red, 191 green and 140 blue out of 255, or 15.7% / 74.9% / 54.9% by channel.
What is #28bf8c in HSL and HSV?
hsl(160, 65%, 45%) and hsv(160, 79%, 75%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.
Is #28bf8c a light or a dark color?
It is a mid-tone. Relative luminance is 0.3961 and perceived brightness is 61%, so black text on it reaches 8.92:1.
Should I use black or white text on #28bf8c?
Black. It scores 8.92:1 against #28bf8c, versus 2.35:1 for white — AAA at any size.
Is #28bf8c accessible on a white background?
#28bf8c on white scores 2.35:1, which fails WCAG AA at every size. Darken it to #1C8461 to reach 4.5:1, or #156248 for 7:1.
What is the complementary color of #28bf8c?
#BF285B sits directly opposite on the wheel. Softer options are the split-complements #BF28A7 and #BF4028, which give the same contrast with far less vibration.
What colors go well with #28bf8c?
For interface work: #F4FAF8 as the surface, #C0EDDD for borders, #4B9B80 for secondary text, #C42382 as an accent and #16694D for hover and pressed states. For a palette, the analogous pair #28BF40 and #28A7BF stays calm, while #BF285B is the loudest partner.
What is #28bf8c in CMYK for printing?
cmyk(79%, 0%, 27%, 25%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.
Is #28bf8c 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 #28BF55; nudged cooler, #26BDC1.
Which Tailwind color is closest to #28bf8c?
The emerald family — its 500 step is #10b981, ΔE2000 2.2 away. That is close enough to swap in without anyone noticing.
How do I use #28bf8c in Tailwind CSS?
Inline it as an arbitrary value with bg-[#28bf8c] or text-[#28bf8c], 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 #28bf8c with 50% opacity?
rgba(40, 191, 140, 0.5), or #28bf8c80 in eight-digit hex. Over white that composites to #94DFC6; over black, #146046.
Is #28bf8c a web-safe color?
No. The nearest web-safe colour is #33CC99, ΔE2000 3.4 away. The palette only matters for legacy displays and some email clients now.
What does the color #28bf8c 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 chroma the effect is amplified — it will dominate whatever sits beside it.
What gradient works with #28bf8c?
The safest is same-hue elevation: linear-gradient(135deg, #4BD9A9, #28bf8c 45%, #16694D). For more colour, a short hue run to #2370A6 keeps it rich without turning muddy.
Work with #28bf8c in the Color Lab
Every tool opens with this colour already loaded.
Every value on this page is computed from #28bf8c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.