Subterranean River
#1B3C53
4-Color Subterranean River Palette
4-color palette · Neutral temperature · Mixed tone · Complementary harmony
Likes
7,064
Colors
4
CSS variables
:root {
--c-earthy-1: #1B3C53;
--c-earthy-2: #456882;
--c-earthy-3: #D2C1B6;
--c-earthy-4: #F9F3EF;
}About this palette
This 4-color earthy palette runs from Crystal Cut (#F9F3EF) as its lightest tone to Subterranean River (#1B3C53) as its darkest. It blends Subterranean River, Eames for Blue, Rabbit’s Foot and Crystal Cut 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 #1B3C53 on #F9F3EF at 10.5:1.
Grounded, natural tones — suits sustainability/organic brands, coffee shops, outdoor gear, and warm editorial typography.
Color breakdown
Eames for Blue
#456882
Rabbit’s Foot
#D2C1B6
Crystal Cut
#F9F3EF
Contrast & accessibility
3 of 6 color pairings meet the WCAG AA contrast threshold (4.5:1) for body text.
Aa
#1B3C53 on #F9F3EF
10.50:1
AAA
Aa
#1B3C53 on #D2C1B6
6.63:1
AA
Aa
#456882 on #F9F3EF
5.37:1
AA
Aa
#456882 on #D2C1B6
3.39:1
AA Large
Aa
#1B3C53 on #456882
1.96:1
Fail
Aa
#D2C1B6 on #F9F3EF
1.59:1
Fail
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