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green · cool

#175b1c

a deep, vivid green · cool · closest name: Dark Green

Token name suggestion: Midnight Basil

RGB
23, 91, 28
HSL
124°, 60%, 22%
CMYK
75, 0, 69, 64
Luminance
0.0775

#175b1c is a deep vivid green, 124° on the wheel and 64/100 on the cool side. Put white text on it (8.24:1). As text it scores 8.24:1 on white — safe at any size. Nearest name is Dark Green, nearest Tailwind family is neutral.

hsl(124 60% 22%)rgb(23 91 28)Base step 900AAA inkCool

At a glance

Every number on this page in one read: what #175b1c is made of, how bright it looks, and which way it leans.

Hex
#175b1c
Hue
124°
green
Saturation
60%
vivid
Lightness
22%
deep
Brightness
36%
HSV value
Perceived
28%
weighted brightness
Luminance
0.0775
WCAG relative
Temperature
Cool
64/100 cool
Color family
Green
Tone
Vivid
Best ink
White
8.24:1
Closest name
Dark Green
ΔE2000 5.2
Chroma
45.7
LCH, 0–130ish
OKLCH L
0.415
perceptual lightness
Tailwind
neutral
500 · ΔE 27.3
Web-safe
#006633
nearest of 216
Where it sits
Hue124° of 360°
Saturation60%
Lightness22%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #175b1c.

Temperature
Warm ← → Cool64% cool

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

Luminance by channel
Red2%
Green97%
Blue1%

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

Every format

HEX#175b1c
HEX (8-digit)#175b1cff
RGBrgb(23, 91, 28)
RGBArgba(23, 91, 28, 1)
HSLhsl(124, 60%, 22%)
HSV / HSBhsv(124, 75%, 36%)
HWBhwb(124 9% 64%)
CMYKcmyk(75%, 0%, 69%, 64%)
LABlab(33.5 -34.9 29.4)
LCHlch(33.5 45.7 139.9)
OKLCHoklch(0.415 0.117 144.1)
XYZ (D65)xyz(4.30, 7.75, 2.37)
Decimal1530652
Display P3color(display-p3 0.090 0.357 0.110)
Web-safe#006633

Copy-ready code

every platformclick to select
/* CSS */
color: #175b1c;
background-color: #175b1c;
/* CSS custom property */
--brand: #175b1c;
/* Tailwind (arbitrary) */
class="text-[#175b1c] bg-[#175b1c]"
/* SCSS */
$brand: #175b1c;
/* SwiftUI */
Color(red: 0.090, green: 0.357, blue: 0.110)
/* UIKit */
UIColor(red: 0.090, green: 0.357, blue: 0.110, alpha: 1)
/* Android XML */
<color name="brand">#175B1C</color>
/* Android Compose */
Color(0xFF175B1C)
/* Flutter */
Color(0xFF175B1C)
/* Python / OpenCV (BGR) */
(28, 91, 23)
/* Python / PIL (RGB) */
(23, 91, 28)
/* Java AWT */
new Color(23, 91, 28)
/* .NET */
Color.FromArgb(255, 23, 91, 28)
/* OpenGL / Unity (0–1) */
(0.0902f, 0.3569f, 0.1098f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{23,91,28}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #175b1c 85%, white);
border-color: color-mix(in oklab, #175b1c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#1A661F, #D3EED5);
/* relative colour syntax */
--hover: hsl(from #175b1c 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: #F4FBF4;
  --brand-100: #E9F7EA;
  --brand-200: #CCEFCF;
  --brand-300: #A5E8AA;
  --brand-400: #79DD80;
  --brand-500: #4CD256;
  --brand-600: #31C33C;
  --brand-700: #29A332;
  --brand-800: #218228;
  --brand-900: #175b1c;
  --brand-950: #113B14;
  --brand: #175b1c;
  --brand-ink: #ffffff;
  --brand-surface: #F4FAF5;
  --brand-border: #C0EDC3;
  --brand-hover: #103F13;
  --brand-pressed: #09220B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142415;
    --brand-ink: #D3EED5;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4FBF4',
        100: '#E9F7EA',
        200: '#CCEFCF',
        300: '#A5E8AA',
        400: '#79DD80',
        500: '#4CD256',
        600: '#31C33C',
        700: '#29A332',
        800: '#218228',
        900: '#175b1c',
        950: '#113B14',
        DEFAULT: '#175b1c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4FBF4,
  '100': #E9F7EA,
  '200': #CCEFCF,
  '300': #A5E8AA,
  '400': #79DD80,
  '500': #4CD256,
  '600': #31C33C,
  '700': #29A332,
  '800': #218228,
  '900': #175b1c,
  '950': #113B14,
);
$brand-base: #175b1c;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4FBF4", "$type": "color" },
      "100": { "$value": "#E9F7EA", "$type": "color" },
      "200": { "$value": "#CCEFCF", "$type": "color" },
      "300": { "$value": "#A5E8AA", "$type": "color" },
      "400": { "$value": "#79DD80", "$type": "color" },
      "500": { "$value": "#4CD256", "$type": "color" },
      "600": { "$value": "#31C33C", "$type": "color" },
      "700": { "$value": "#29A332", "$type": "color" },
      "800": { "$value": "#218228", "$type": "color" },
      "900": { "$value": "#175b1c", "$type": "color" },
      "950": { "$value": "#113B14", "$type": "color" }
    },
    "brandInk": { "$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 #175b1c · 8.24:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 8.24:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 2.55:1
AA fail · AA large fail · AAA fail
Reading the other direction: #175b1c as text scores 8.24:1 on white and 2.55:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EBFAEC at 7.62:1.

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
#175b1c · 8.24:1
AA on whitealready passes
#175b1c
The quick fox
#175b1c · 8.24:1
AAA on whitealready passes
#175b1c
The quick fox
#22882A · 4.62:1
AA on black+11% L
#22882A
The quick fox
#2CAD35 · 7.14:1
AAA on black+20% L
#2CAD35

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #175B1C 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
#175b1c on white: 8.24:1
AA ✓ pass · AA-large · AAA
Aa
#175b1c on black: 2.55:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #175b1c as text on that neutral, and that neutral as text on #175b1c.

NeutralRatioBoth directions
White8.24:1AaAa
Slate 507.87:1AaAa
Slate 1007.52:1AaAa
Slate 2006.68:1AaAa
Slate 3005.55:1AaAa
Slate 4003.21:1AaAa
Slate 5001.73:1AaAa
Slate 6001.09:1AaAa
Slate 7001.26:1AaAa
Slate 8001.78:1AaAa
Slate 9002.17:1AaAa
Black2.55:1AaAa
Colour vision deficiency
true color
protanopia · #5D5214
deuteranopia · #554D22
tritanopia · #02584E

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. #175b1c is pinned to step 900; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F4FBF4
#E9F7EA
#CCEFCF
#A5E8AA
#79DD80
#4CD256
#31C33C
#29A332
#218228
#175b1c
#113B14
Base = 900Lightest = 50 · #F4FBF4Darkest = 950 · #113B14Text step on white = 800
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 0.029 144.1);
  --brand-100: oklch(0.94 0.047 144.1);
  --brand-200: oklch(0.88 0.070 144.1);
  --brand-300: oklch(0.80 0.091 144.1);
  --brand-400: oklch(0.72 0.107 144.1);
  --brand-500: oklch(0.64 0.117 144.1);
  --brand-600: oklch(0.56 0.117 144.1);
  --brand-700: oklch(0.48 0.110 144.1);
  --brand-800: oklch(0.40 0.098 144.1);
  --brand-900: oklch(0.32 0.082 144.1);
  --brand-950: oklch(0.24 0.064 144.1);
}

Colors that work with #175b1c

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#F4FAF5
Tinted page background
Border#C0EDC3
Hairlines and dividers
Muted text#4B9B50
Captions on the surface
Accent#51155D
Second voice, not a rival
Dark variant#1A661F
Hover, pressed, headers
Light variant#EBFAEC
Selected rows, tints
Dark surface#142415
Dark-mode background
Hover#103F13
One step down in lightness
Pressed#09220B
Two steps down
Disabled#588A5C
Chroma pulled out
Focus ring#14721B
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 #175b1c

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
  • 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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. 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
  • EnergyMedium-high
  • Weight78/100
  • TemperatureCool
  • 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#5B1756
Analogous left#345B17
Analogous right#175B3E
Split-complement 1#3E175B
Split-complement 2#5B1734
Triadic 1#1C175B
Triadic 2#5B1C17
Tetradic#17345B
On the wheel
Base+30°−30°+120°+240°+180°124°

#175b1c sits at 124°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red9.0%
Green35.7%
Blue11.0%
R · 0–255
23
0x17
G · 0–255
91
0x5b
B · 0–255
28
0x1c

CMYK percentages

Cyan74.7%
Magenta0.0%
Yellow69.2%
Key (black)64.3%

Total ink coverage is 208%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#175b1c text on a black background

contrast 2.55:1

Card sample

#175b1c text on a white background

contrast 8.24:1

Card sample

#175b1c on grey

7.52:1

#175b1c on its own surface

7.78:1

#175b1c on its dark surface

1.97:1

CSS3 live lab

Text font color

The quick brown fox

color: #175b1c;
Background color
Panel with #175b1c background
background-color: #175b1c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #175b1c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(23, 91, 28, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 91, 28, 0.45);
Border & gradient
Gradient panel
border: 3px solid #175b1c;
background: linear-gradient(135deg, #175b1c, #175B49);
Gradient text

Gradient headline

background: linear-gradient(90deg, #175b1c, #175B5A);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #175b1c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #175b1c;
caret-color: #175b1c;
Left rule
Pull quote or callout
border-left: 4px solid #175b1c;
Ring + tint
Selected chip
background: #EBFAEC;
box-shadow: inset 0 0 0 2px #175b1c;
Conic badge
68%
background: conic-gradient(#175b1c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #175b1c 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(23, 91, 28, 0.5)
rgb(23 91 28 / 50%)
#175b1c80
hsl(124 60% 22% / 50%)
color-mix(in srgb, #175b1c 50%, transparent)
Alpha8-digit hexFlat on white
10%#175b1c1a#E8EFE8
20%#175b1c33#D1DED2
40%#175b1c66#A2BDA4
60%#175b1c99#749D77
80%#175b1ccc#457C49

Gradients from #175b1c

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, #238C2B, #175b1c 45%, #1A661F);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #175b1c, #11433A);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #175b1c, #5B1756);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #2AA433 0%, #175b1c 45%, #1A661F 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF5, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #548421 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #1D7456 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #1A661F 0%, transparent 65%), #175b1c;

Monochromatic scale

Palettes built from #175b1c

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.

#175b1c 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

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 2.55:1 — lift it to #22882A 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.

#175b1c, answered

What color is #175b1c?

#175b1c is a deep vivid green, closest to Dark Green (ΔE2000 5.2). It sits at 124° on the hue wheel with 60% saturation and 22% lightness, which reads as cool.

What is the RGB value of #175b1c?

rgb(23, 91, 28) — 23 red, 91 green and 28 blue out of 255, or 9% / 35.7% / 11% by channel.

What is #175b1c in HSL and HSV?

hsl(124, 60%, 22%) and hsv(124, 75%, 36%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #175b1c a light or a dark color?

It is a dark color. Relative luminance is 0.0775 and perceived brightness is 28%, so white text on it reaches 8.24:1.

Should I use black or white text on #175b1c?

White. It scores 8.24:1 against #175b1c, versus 2.55:1 for black — AAA at any size.

Is #175b1c accessible on a white background?

#175b1c on white scores 8.24:1, which clears AAA at every size.

What is the complementary color of #175b1c?

#5B1756 sits directly opposite on the wheel. Softer options are the split-complements #3E175B and #5B1734, which give the same contrast with far less vibration.

What colors go well with #175b1c?

For interface work: #F4FAF5 as the surface, #C0EDC3 for borders, #4B9B50 for secondary text, #51155D as an accent and #1A661F for hover and pressed states. For a palette, the analogous pair #345B17 and #175B3E stays calm, while #5B1756 is the loudest partner.

What is #175b1c in CMYK for printing?

cmyk(75%, 0%, 69%, 64%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #175b1c warm or cool?

Cool — it scores 64 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2B5B17; nudged cooler, #165C35.

Which Tailwind color is closest to #175b1c?

The neutral family — its 500 step is #737373, ΔE2000 27.3 away. That is a visible difference, so define #175b1c as a custom token rather than reaching for the built-in.

How do I use #175b1c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#175b1c] or text-[#175b1c], 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 #175b1c with 50% opacity?

rgba(23, 91, 28, 0.5), or #175b1c80 in eight-digit hex. Over white that composites to #8BAD8E; over black, #0C2E0E.

Is #175b1c a web-safe color?

No. The nearest web-safe colour is #006633, ΔE2000 5.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #175b1c 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 #175b1c?

The safest is same-hue elevation: linear-gradient(135deg, #238C2B, #175b1c 45%, #1A661F). For more colour, a short hue run to #11433A keeps it rich without turning muddy.

Work with #175b1c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #175b1c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.