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#03472d

a deep, electric green · cool · closest name: Dark Slate Gray

RGB
3, 71, 45
HSL
157°, 92%, 15%
CMYK
96, 0, 37, 72
Luminance
0.0472

At a glance

Every number on this page in one read: what #03472d is made of, how bright it looks, and which way it leans.

Hex
#03472d
Hue
157°
green
Saturation
92%
electric
Lightness
15%
deep
Brightness
28%
HSV value
Perceived
22%
weighted brightness
Luminance
0.0472
WCAG relative
Temperature
Cool
78/100 cool
Color family
Green
Tone
Electric
Best ink
White
10.81:1
Closest name
Dark Slate Gray
ΔE2000 13.7
Where it sits
Hue157° of 360°
Saturation92%
Lightness15%
Temperature
Warm ← → Cool78% 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#03472d
RGBrgb(3, 71, 45)
HSLhsl(157, 92%, 15%)
CMYKcmyk(96%, 0%, 37%, 72%)
LABlab(25.9 -26.9 10.2)
LCHlch(25.9 28.8 159.1)
OKLCHoklch(0.352 0.077 160.4)
Decimal214829
Display P3color(display-p3 0.012 0.278 0.176)

Copy-ready code

/* CSS */
color: #03472d;
background-color: #03472d;
/* Tailwind (arbitrary) */
class="text-[#03472d] bg-[#03472d]"
/* SCSS */
$brand: #03472d;
/* SwiftUI */
Color(red: 0.012, green: 0.278, blue: 0.176)
/* Android */
Color.parseColor("#03472d")
/* Flutter */
Color(0xFF03472D)
/* Python / OpenCV (BGR) */
(45, 71, 3)

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 #03472d · 10.81:1
Use #ffffffAAA at every size.
Aa
White text · 10.81:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 1.94:1
AA fail · AA large fail · AAA fail
Reading the other direction: #03472d as text scores 10.81:1 on white and 1.94:1 on black.

Accessibility — WCAG contrast

Aa
#03472d on white: 10.81:1
AA ✓ pass · AA-large · AAA
Aa
#03472d on black: 1.94:1
AA ✗ fail · AA-large · AAA
true color
protanopia · #46412B
deuteranopia · #3E3B2F
tritanopia · #004740

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #03472d 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.

#F2FDF9
#E4FBF2
#C3F9E4
#93FAD3
#5EF8BD
#28F6A7
#0AEB95
#08C47C
#079D63
#097149
#03472d
Base = 950Lightest = 50 · #F2FDF9Darkest = 950 · #03472d
:root {
  --brand-50: #F2FDF9;
  --brand-100: #E4FBF2;
  --brand-200: #C3F9E4;
  --brand-300: #93FAD3;
  --brand-400: #5EF8BD;
  --brand-500: #28F6A7;
  --brand-600: #0AEB95;
  --brand-700: #08C47C;
  --brand-800: #079D63;
  --brand-900: #097149;
  --brand-950: #03472d;
  --brand: #03472d;
  --brand-ink: #ffffff;
}

Colors that work with #03472d

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#F4FAF8
Tinted page background
Border#C0EDDC
Hairlines and dividers
Muted text#4B9B7C
Captions on the surface
Accent#48022E
Second voice, not a rival
Dark variant#057A4E
Hover, pressed, headers
Light variant#E7FEF5
Selected rows, tints
Dark surface#14241E
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 #03472d

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

Works well for
  • Body text and links on white
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text on black or near-black surfaces
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • 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#47031D
Analogous left#03470B
Analogous right#033F47
Split-complement 1#47033F
Split-complement 2#470B03
Triadic 1#2D0347
Triadic 2#472D03
Tetradic#0B0347

RGB percentages

Red1.2%
Green27.8%
Blue17.6%

CMYK percentages

Cyan95.8%
Magenta0.0%
Yellow36.6%
Key (black)72.2%

Color previews

#03472d text on a black background

contrast 1.94:1

Card sample

#03472d text on a white background

contrast 10.81:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #03472d;
Background color
Panel with #03472d background
background-color: #03472d;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #03472d;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(3, 71, 45, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(3, 71, 45, 0.45);
Border & gradient
Gradient panel
border: 3px solid #03472d;
background: linear-gradient(135deg, #03472d, #033447);

Monochromatic scale

Palettes built from #03472d

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.

#03472d 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.

#03472d, answered

What color is #03472d?

#03472d is a deep electric green, closest to Dark Slate Gray (ΔE2000 13.7). It sits at 157° on the hue wheel with 92% saturation and 15% lightness, which reads as cool.

What is the RGB value of #03472d?

rgb(3, 71, 45) — 3 red, 71 green and 45 blue out of 255, or 1.2% / 27.8% / 17.6% by channel.

Is #03472d a light or a dark color?

It is a dark color. Relative luminance is 0.0472 and perceived brightness is 22%, so white text on it reaches 10.81:1.

Should I use black or white text on #03472d?

White. It scores 10.81:1 against #03472d, versus 1.94:1 for black — AAA at any size.

What is the complementary color of #03472d?

#47031D sits directly opposite on the wheel. Softer options are the split-complements #47033F and #470B03, which give the same contrast with far less vibration.

What colors go well with #03472d?

For interface work: #F4FAF8 as the surface, #C0EDDC for borders, #4B9B7C for secondary text, #48022E as an accent and #057A4E for hover and pressed states. For a palette, the analogous pair #03470B and #033F47 stays calm, while #47031D is the loudest partner.

What is #03472d in CMYK for printing?

cmyk(96%, 0%, 37%, 72%). 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 #03472d warm or cool?

Cool — it scores 78 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #034714; nudged cooler, #024847.

Work with #03472d in the Color Lab