#3B1B5D
#66428B
#D2A400
#DFDDD8
#009DCBBlue Gray
#E9B44CMustard
#8C5E2ACocoa
#F5E8C7Champagne
Bold Mustard & Blue Gray is a vivid complementary color palette tagged modern, blue, yellow. Near-complementary hues (about 162° apart) make this a high-contrast, attention-grabbing combination. Saturation runs high, so use the brightest color sparingly and let the others carry the surface area. Warm and cool hues are mixed, which adds depth.
Color codes click any value to copy
| Swatch | Name | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|---|
| Blue Gray | #009DCB | rgb(0, 157, 203) | hsl(194, 100%, 40%) | oklch(65.0% 0.126 228) | |
| Mustard | #E9B44C | rgb(233, 180, 76) | hsl(40, 78%, 61%) | oklch(80.0% 0.134 81) | |
| Cocoa | #8C5E2A | rgb(140, 94, 42) | hsl(32, 54%, 36%) | oklch(52.1% 0.090 67) | |
| Champagne | #F5E8C7 | rgb(245, 232, 199) | hsl(43, 70%, 87%) | oklch(93.3% 0.046 89) |
Why it works and how to use it
The palette holds together thanks to its complementary hue relationship and a strong light-to-dark ladder (87% down to 36% lightness). A natural fit for websites, presentations and branding.
- Background: Champagne (#F5E8C7) is the lightest color, so it belongs on large surfaces.
- Text: Cocoa (#8C5E2A) on #F5E8C7 gives 4.6:1, passing WCAG AA.
- Primary: Blue Gray (#009DCB) is the most saturated mid-tone; use it for buttons and links with a border or a darker shade for contrast.
- Accent: Mustard (#E9B44C) for highlights, badges and hover states.
1 of 6 color pairs pass WCAG AA (4.5:1); the strongest is Cocoa on Champagne at 4.6:1.
Preview on a real UI see how the palette feels in context
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Design faster with Bold Mustard & Blue Gray
A palette preview that turns four colors into a page, so you can judge hierarchy, contrast and mood before you commit.
Primary action SecondaryCard title
Card title
Card title
Roles are assigned by lightness.
Color blindness simulation
#009DCB
#E9B44C
#8C5E2A
#F5E8C7
Color-blind check: all four colors stay distinguishable under protanopia, deuteranopia and tritanopia.
Contrast check WCAG ratios between palette colors
| Pair | Sample | Ratio | Level |
|---|---|---|---|
#8C5E2A on #F5E8C7 | Aa | 4.6:1 | AA |
#E9B44C on #8C5E2A | Aa | 2.96:1 | Fail |
#009DCB on #F5E8C7 | Aa | 2.58:1 | Fail |
#009DCB on #8C5E2A | Aa | 1.78:1 | Fail |
#009DCB on #E9B44C | Aa | 1.66:1 | Fail |
#E9B44C on #F5E8C7 | Aa | 1.55:1 | Fail |
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