Subterranean River
#213C51
4-Color Subterranean River Palette
4-color palette · Cool temperature · Mixed tone · Triadic harmony
Likes
2,030
Colors
4
CSS variables
:root {
--c-muted-1: #213C51;
--c-muted-2: #6594B1;
--c-muted-3: #DDAED3;
--c-muted-4: #EEEEEE;
}About this palette
This 4-color muted palette runs from Super Silver (#EEEEEE) as its lightest tone to Subterranean River (#213C51) as its darkest. It blends Subterranean River, Aragonite Blue, Bff and Super Silver into a single set you can drop straight into a UI. Of its 6 color pairings, 2 meet the WCAG AA contrast threshold (4.5:1) for body text — the strongest is #213C51 on #EEEEEE at 9.89:1.
A versatile palette suitable for marketing pages, product hero blocks, illustrations, and accent UI states.
Color breakdown
Aragonite Blue
#6594B1
Bff
#DDAED3
Super Silver
#EEEEEE
Contrast & accessibility
2 of 6 color pairings meet the WCAG AA contrast threshold (4.5:1) for body text.
Aa
#213C51 on #EEEEEE
9.89:1
AAA
Aa
#213C51 on #DDAED3
6.05:1
AA
Aa
#213C51 on #6594B1
3.51:1
AA Large
Aa
#6594B1 on #EEEEEE
2.82:1
Fail
Aa
#6594B1 on #DDAED3
1.72:1
Fail
Aa
#DDAED3 on #EEEEEE
1.64:1
Fail
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