There is rarely one right answer. Here are several categories of pairing options, each with a reason it may work.
Marigold
Similar lightness for a subtle, tone-on-tone pairing with minimal contrast.
Caramel
Similar lightness for a subtle, tone-on-tone pairing with minimal contrast.
Amber
Similar lightness for a subtle, tone-on-tone pairing with minimal contrast.
Saffron
Similar lightness for a subtle, tone-on-tone pairing with minimal contrast.
Topaz
Enough lightness contrast to read as two distinct colours without feeling harsh.
Naples Yellow
Enough lightness contrast to read as two distinct colours without feeling harsh.
Mustard
Enough lightness contrast to read as two distinct colours without feeling harsh.
Burnished Gold
Enough lightness contrast to read as two distinct colours without feeling harsh.
White
Strong lightness contrast and saturation for a bold, graphic pairing.
Mint Cream
Strong lightness contrast and saturation for a bold, graphic pairing.
Black
Strong lightness contrast and saturation for a bold, graphic pairing.
Off-White
Strong lightness contrast and saturation for a bold, graphic pairing.
Navy Blue
A saturated accent from a different hue family for a deliberate pop of contrast.
Blue
A saturated accent from a different hue family for a deliberate pop of contrast.
Indigo
A saturated accent from a different hue family for a deliberate pop of contrast.
Ultramarine
A saturated accent from a different hue family for a deliberate pop of contrast.
Black
Meets WCAG AA contrast (9.4:1) for normal text if used as text/background.
Navy Blue
Meets WCAG AA contrast (7.2:1) for normal text if used as text/background.
Midnight Blue
Meets WCAG AA contrast (6.6:1) for normal text if used as text/background.
Prussian Blue
Meets WCAG AA contrast (6.0:1) for normal text if used as text/background.