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Tintdex

Halcyon

Halcyon is a cool, dark terminal color scheme with a #171c28 background and #d7dce2 text (12.3:1 contrast)

Get config
Background
#171c28
Foreground
#d7dce2
Text contrast
12.35:1AAA
Accent contrast
8.57:1min 3.92
zsh — ls & git status
zsh — ls & git status
zsh — ls & git status
zsh — ls & git status
zsh — ls & git status — Konsole
~/dev/tintdex on main [!?] via ⬢ v1.4.3
❯ ls -la
drwxr-xr-x 12 ada staff 384 Oct 30 09:12 .
drwxr-xr-x 8 ada staff 256 Oct 29 18:40 ..
-rw-r--r-- 1 ada staff 1.2K Oct 30 09:10 .gitignore
drwxr-xr-x 5 ada staff 160 Oct 30 09:12 src
drwxr-xr-x 3 ada staff 96 Oct 28 11:02 public
-rwxr-xr-x 1 ada staff 2.4K Oct 30 08:57 build.sh
-rw-r--r-- 1 ada staff 4.1K Oct 30 09:01 package.json
lrwxr-xr-x 1 ada staff 18 Oct 27 14:33 node_modules -> ../cache/modules
-rw-r--r-- 1 ada staff 48K Oct 26 10:15 logo.png
-rw-r--r-- 1 ada staff 9.8M Oct 25 21:47 backup.tar.gz
~/dev/tintdex on main [!?] via ⬢ v1.4.3
❯ git status
On branch main
Your branch is ahead of 'origin/main' by 2 commits.
Changes to be committed:
new file: src/theme.css
modified: README.md
Changes not staged for commit:
modified: src/app.tsx
deleted: legacy/colors.js
Untracked files:
notes.md
~/dev/tintdex on main [!?] via ⬢ v1.4.3
❯

Halcyon configs

16 formats, all from one palette

Halcyon

Save to ~/.config/ghostty/themes/Halcyon, then set theme = Halcyon in config or config.ghostty

More Ghostty themes
Raw file
# Theme: Halcyon (Ghostty)
# Preview & customize online: https://tintdex.afengim.com/en/schemes/halcyon?format=ghostty

palette = 0=#1d2433
palette = 1=#ef6b73
palette = 2=#bae67e
palette = 3=#ffd580
palette = 4=#6679a4
palette = 5=#c3a6ff
palette = 6=#5ccfe6
palette = 7=#d7dce2
palette = 8=#1d2433
palette = 9=#ef6b73
palette = 10=#bae67e
palette = 11=#ffd580
palette = 12=#6679a4
palette = 13=#c3a6ff
palette = 14=#5ccfe6
palette = 15=#d7dce2
background = #171c28
foreground = #d7dce2
cursor-color = #d7dce2
cursor-text = #171c28
selection-background = #404652
selection-foreground = #d7dce2

Halcyon palette

Palette color values and WCAG contrast ratios against the background
ColorSlotHEXRGBHSLOKLCHContrast
Backgroundbackground#171c28rgb(23 28 40)hsl(222 27% 12%)oklch(22.7% 0.025 266.9)—
Foregroundforeground#d7dce2rgb(215 220 226)hsl(213 16% 86%)oklch(89.2% 0.010 252.8)12.35 AAA
Cursorcursor#d7dce2rgb(215 220 226)hsl(213 16% 86%)oklch(89.2% 0.010 252.8)12.35 AAA
Cursor textcursorText#171c28rgb(23 28 40)hsl(222 27% 12%)oklch(22.7% 0.025 266.9)1.00 Fail
Selectionselection#404652rgb(64 70 82)hsl(220 12% 29%)oklch(39.3% 0.022 264.3)1.80 Fail
Selection textselectionText#d7dce2rgb(215 220 226)hsl(213 16% 86%)oklch(89.2% 0.010 252.8)12.35 AAA
Blackcolor0#1d2433rgb(29 36 51)hsl(221 28% 16%)oklch(26.1% 0.030 265.0)1.10 Fail
Redcolor1#ef6b73rgb(239 107 115)hsl(356 80% 68%)oklch(69.0% 0.163 18.7)5.69 AA
Greencolor2#bae67ergb(186 230 126)hsl(85 68% 70%)oklch(87.1% 0.140 127.8)11.93 AAA
Yellowcolor3#ffd580rgb(255 213 128)hsl(40 100% 75%)oklch(89.1% 0.114 83.9)12.23 AAA
Bluecolor4#6679a4rgb(102 121 164)hsl(222 25% 52%)oklch(57.8% 0.070 265.8)3.92 AA Large
Magentacolor5#c3a6ffrgb(195 166 255)hsl(260 100% 83%)oklch(78.4% 0.127 298.4)8.29 AAA
Cyancolor6#5ccfe6rgb(92 207 230)hsl(190 73% 63%)oklch(79.7% 0.108 212.9)9.34 AAA
Whitecolor7#d7dce2rgb(215 220 226)hsl(213 16% 86%)oklch(89.2% 0.010 252.8)12.35 AAA
Bright Blackcolor8#1d2433rgb(29 36 51)hsl(221 28% 16%)oklch(26.1% 0.030 265.0)1.10 Fail
Bright Redcolor9#ef6b73rgb(239 107 115)hsl(356 80% 68%)oklch(69.0% 0.163 18.7)5.69 AA
Bright Greencolor10#bae67ergb(186 230 126)hsl(85 68% 70%)oklch(87.1% 0.140 127.8)11.93 AAA
Bright Yellowcolor11#ffd580rgb(255 213 128)hsl(40 100% 75%)oklch(89.1% 0.114 83.9)12.23 AAA
Bright Bluecolor12#6679a4rgb(102 121 164)hsl(222 25% 52%)oklch(57.8% 0.070 265.8)3.92 AA Large
Bright Magentacolor13#c3a6ffrgb(195 166 255)hsl(260 100% 83%)oklch(78.4% 0.127 298.4)8.29 AAA
Bright Cyancolor14#5ccfe6rgb(92 207 230)hsl(190 73% 63%)oklch(79.7% 0.108 212.9)9.34 AAA
Bright Whitecolor15#d7dce2rgb(215 220 226)hsl(213 16% 86%)oklch(89.2% 0.010 252.8)12.35 AAA

About Halcyon

Halcyon is a dark terminal color scheme built on a cool-tinted #171c28 background with #d7dce2 as the default foreground. Body text reaches a 12.35:1 WCAG contrast ratio (AAA), while the 12 ANSI accent colors average 8.57:1 (minimum 3.92:1).

Its palette is moderately saturated, anchored by #ef6b73 red, #bae67e green, #6679a4 blue, and #c3a6ff magenta.

Ready-to-use configs can be exported for Ghostty, iTerm2, Kitty, Alacritty, WezTerm, Windows Terminal, Warp, foot, Rio, XFCE4 Terminal, and Xresources, along with VS Code and Zed integrated terminals, CSS variables, Tailwind CSS, and JSON.

Schemes similar to Halcyon

Source: Gogh (MIT OR Apache-2.0)