Aquamarine (21828B) — Shades, Harmonies, Palettes, CSS Code

"Aquamarine"

Cyan · Summer

🧠 Psychology

Fresh and soothing color. Evokes clarity, communication and technological innovation.

✨ Uses

Tech, health, communication, SaaS, media.

Tip

Aquamarine pairs ideally with #F7F5F0 (off-white) and a neutral background for a modern, readable result.

Values

HEX #21828B

RGB rgb(33, 130, 139)

HSL hsl(185°, 62%, 34%)

CMYK C:76% M:6% Y:0% K:45%

Luminance 0.1838

WCAG Accessibility

On white 4.54:1

Aa — #21828B

Secondary text

✓ AA ✗ AAA ✓ AA Large

On black 4.63:1

Aa — #21828B

Secondary text

✓ AA ✗ AAA ✓ AA Large

50 100 200 300 400 500 600 700 800 900 950

All harmonies

Complementary

#21828B #8C2A21

Analogous

#218C60 #21828B #214E8C

Triadic

#21828B #8C2183 #838C21

Split-comp.

#21828B #8C214E #8C6021

Tetradic

#21828B #60218C #8C2A21 #4E8C21

Monochromatic

#9AD9DF #4DBDC7 #2A7C84 #1D585D #0B2123

Suggested palettes for this hue.

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