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#2dfd7e

a balanced, electric green · cool · “Spring Green”

RGB
45, 253, 126
HSL
143°, 98%, 58%
CMYK
82, 0, 50, 1
Luminance
0.7231

At a glance

Every number on this page in one read: what #2dfd7e is made of, how bright it looks, and which way it leans.

Hex
#2dfd7e
Hue
143°
green
Saturation
98%
electric
Lightness
58%
balanced
Brightness
99%
HSV value
Perceived
78%
weighted brightness
Luminance
0.7231
WCAG relative
Temperature
Cool
72/100 cool
Color family
Green
Tone
Electric
Best ink
Black
15.46:1
Closest name
Spring Green
ΔE2000 0.7
Where it sits
Hue143° of 360°
Saturation98%
Lightness58%
Temperature
Warm ← → Cool72% cool

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

Every format

HEX#2dfd7e
RGBrgb(45, 253, 126)
HSLhsl(143, 98%, 58%)
CMYKcmyk(82%, 0%, 50%, 1%)
LABlab(88.1 -74.2 47.1)
LCHlch(88.1 87.9 147.6)
OKLCHoklch(0.873 0.229 150.2)
Decimal3014014
Display P3color(display-p3 0.176 0.992 0.494)

Copy-ready code

/* CSS */
color: #2dfd7e;
background-color: #2dfd7e;
/* Tailwind (arbitrary) */
class="text-[#2dfd7e] bg-[#2dfd7e]"
/* SCSS */
$brand: #2dfd7e;
/* SwiftUI */
Color(red: 0.176, green: 0.992, blue: 0.494)
/* Android */
Color.parseColor("#2dfd7e")
/* Flutter */
Color(0xFF2DFD7E)
/* Python / OpenCV (BGR) */
(126, 253, 45)

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 #2dfd7e · 15.46:1
Use #000000AAA at every size.
Aa
White text · 1.36:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.46:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2dfd7e as text scores 1.36:1 on white and 15.46:1 on black.

Accessibility — WCAG contrast

Aa
#2dfd7e on white: 1.36:1
AA ✗ fail · AA-large · AAA
Aa
#2dfd7e on black: 15.46:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #FEE773
deuteranopia · #E8D787
tritanopia · #00F9E0

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2dfd7e is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1FDF6
#E3FCED
#C1FBD7
#90FEBB
#58FD99
#2dfd7e
#02F260
#02CA50
#02A240
#067431
#04491F
Base = 500Lightest = 50 · #F1FDF6Darkest = 950 · #04491F
:root {
  --brand-50: #F1FDF6;
  --brand-100: #E3FCED;
  --brand-200: #C1FBD7;
  --brand-300: #90FEBB;
  --brand-400: #58FD99;
  --brand-500: #2dfd7e;
  --brand-600: #02F260;
  --brand-700: #02CA50;
  --brand-800: #02A240;
  --brand-900: #067431;
  --brand-950: #04491F;
  --brand: #2dfd7e;
  --brand-ink: #000000;
}

Colors that work with #2dfd7e

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#F4FAF7
Tinted page background
Border#C0EDD1
Hairlines and dividers
Muted text#4B9B6A
Captions on the surface
Accent#CC00AF
Second voice, not a rival
Dark variant#017E32
Hover, pressed, headers
Light variant#E6FFEF
Selected rows, tints
Dark surface#14241A
Dark-mode background
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

How to use #2dfd7e

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

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate

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#FD2DAC
Analogous left#44FD2D
Analogous right#2DFDE6
Split-complement 1#E62DFD
Split-complement 2#FD2D44
Triadic 1#7E2DFD
Triadic 2#FD7E2D
Tetradic#2D44FD

RGB percentages

Red17.6%
Green99.2%
Blue49.4%

CMYK percentages

Cyan82.2%
Magenta0.0%
Yellow50.2%
Key (black)0.8%

Color previews

#2dfd7e text on a black background

contrast 15.46:1

Card sample

#2dfd7e text on a white background

contrast 1.36:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2dfd7e;
Background color
Panel with #2dfd7e background
background-color: #2dfd7e;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #2dfd7e;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(45, 253, 126, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(45, 253, 126, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2dfd7e;
background: linear-gradient(135deg, #2dfd7e, #2DF1FD);

Monochromatic scale

Palettes built from #2dfd7e

Shades — darker

Tints — lighter

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.

#2dfd7e 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

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#2dfd7e, answered

What color is #2dfd7e?

#2dfd7e is a balanced electric green — the CSS keyword Spring Green. It sits at 143° on the hue wheel with 98% saturation and 58% lightness, which reads as cool.

What is the RGB value of #2dfd7e?

rgb(45, 253, 126) — 45 red, 253 green and 126 blue out of 255, or 17.6% / 99.2% / 49.4% by channel.

Is #2dfd7e a light or a dark color?

It is a light color. Relative luminance is 0.7231 and perceived brightness is 78%, so black text on it reaches 15.46:1.

Should I use black or white text on #2dfd7e?

Black. It scores 15.46:1 against #2dfd7e, versus 1.36:1 for white — AAA at any size.

What is the complementary color of #2dfd7e?

#FD2DAC sits directly opposite on the wheel. Softer options are the split-complements #E62DFD and #FD2D44, which give the same contrast with far less vibration.

What colors go well with #2dfd7e?

For interface work: #F4FAF7 as the surface, #C0EDD1 for borders, #4B9B6A for secondary text, #CC00AF as an accent and #017E32 for hover and pressed states. For a palette, the analogous pair #44FD2D and #2DFDE6 stays calm, while #FD2DAC is the loudest partner.

What is #2dfd7e in CMYK for printing?

cmyk(82%, 0%, 50%, 1%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #2dfd7e warm or cool?

Cool — it scores 72 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2DFD32; nudged cooler, #2BFFCB.

Work with #2dfd7e in the Color Lab