River Styx
#181823
4-Color Blue Öyster Cult Palette
4-color palette · Cool temperature · Mixed tone · Analogous harmony
Likes
5,475
Colors
4
CSS variables
:root {
--c-muted-1: #181823;
--c-muted-2: #537FE7;
--c-muted-3: #C0EEF2;
--c-muted-4: #E9F8F9;
}About this palette
This 4-color muted palette runs from Calm Waters (#E9F8F9) as its lightest tone to River Styx (#181823) as its darkest. It blends River Styx, Blue Öyster Cult, Icy Breeze and Calm Waters into a single set you can drop straight into a UI. Of its 6 color pairings, 3 meet the WCAG AA contrast threshold (4.5:1) for body text — the strongest is #181823 on #E9F8F9 at 16.13:1.
A versatile palette suitable for marketing pages, product hero blocks, illustrations, and accent UI states.
Color breakdown
Blue Öyster Cult
#537FE7
Icy Breeze
#C0EEF2
Calm Waters
#E9F8F9
Contrast & accessibility
3 of 6 color pairings meet the WCAG AA contrast threshold (4.5:1) for body text.
Aa
#181823 on #E9F8F9
16.13:1
AAA
Aa
#181823 on #C0EEF2
14.03:1
AAA
Aa
#181823 on #537FE7
4.66:1
AA
Aa
#537FE7 on #E9F8F9
3.47:1
AA Large
Aa
#537FE7 on #C0EEF2
3.01:1
AA Large
Aa
#C0EEF2 on #E9F8F9
1.15:1
Fail
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