← Back to Editor

#333399 · #6699CC · #99CCFF · #FF0033 · #FFCC00

cool

A 5-color cool palette · Complete color analysis and application guide

Scene Recommendations Scene Recommendations

Emotion EMOTION

PassionateDynamicWarmCool

Industry INDUSTRY

EntertainmentFMCG

UI Context UI CONTEXT

Sale PromoSocial App

Color Details Color Details

#333399

Deep Indigo · DarkSlateBlue · Prussian Blue

HEX
#333399
RGB
rgb(51, 51, 153)
HSL
hsl(240, 50%, 40%)
HSB
hsb(240, 67%, 60%)
CMYK
cmyk(67%, 67%, 0%, 40%)
Oklch
oklch(39.1% 0.162 275.9)

Traditional「Deep Indigo」· Paint「Prussian Blue」· Creative Blush Sunrise

#6699CC

Azure · CornflowerBlue · Navy Blue

HEX
#6699CC
RGB
rgb(102, 153, 204)
HSL
hsl(210, 50%, 60%)
HSB
hsb(210, 50%, 80%)
CMYK
cmyk(50%, 25%, 0%, 20%)
Oklch
oklch(66.8% 0.094 249.4)

Traditional「Azure」· Paint「Navy Blue」· Creative Blush Sunrise

#99CCFF

Azure · LightSkyBlue · Cobalt Blue

HEX
#99CCFF
RGB
rgb(153, 204, 255)
HSL
hsl(210, 100%, 80%)
HSB
hsb(210, 40%, 100%)
CMYK
cmyk(40%, 20%, 0%, 0%)
Oklch
oklch(82.8% 0.090 249.0)

Traditional「Azure」· Paint「Cobalt Blue」· Creative Twilight Haze

#FF0033

Vermilion · Crimson · Passion Red

HEX
#FF0033
RGB
rgb(255, 0, 51)
HSL
hsl(348, 100%, 50%)
HSB
hsb(348, 100%, 100%)
CMYK
cmyk(0%, 100%, 80%, 0%)
Oklch
oklch(63.1% 0.255 23.6)

Traditional「Vermilion」· Paint「Passion Red」· Creative Blush Sunrise

#FFCC00

Ochre · Gold · Honey Gold

HEX
#FFCC00
RGB
rgb(255, 204, 0)
HSL
hsl(48, 100%, 50%)
HSB
hsb(48, 100%, 100%)
CMYK
cmyk(0%, 20%, 100%, 0%)
Oklch
oklch(86.5% 0.177 90.4)

Traditional「Ochre」· Paint「Honey Gold」· Creative Blush Sunrise

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

333399
999933

Analogous

336699
333399
663399

Triadic

333399
993333
339933

Split-Comp.

333399
996633
669933

Tetradic

333399
993366
999933
339966

Contrast Matrix WCAG 2.1 Contrast

333399
6699CC
99CCFF
FF0033
FFCC00
—
3.4
AA Large
6.0
AA
2.6
Fail
6.7
AA
3.4
AA Large
—
1.8
Fail
1.3
Fail
2.0
Fail
6.0
AA
1.8
Fail
—
2.3
Fail
1.1
Fail
2.6
Fail
1.3
Fail
2.3
Fail
—
2.6
Fail
6.7
AA
2.0
Fail
1.1
Fail
2.6
Fail
—
White BG
10.1AAA
3.0AA Large
1.7Fail
4.0AA Large
1.5Fail
Black BG
2.1Fail
7.0AA
12.4AAA
5.3AA
13.9AAA

Color Blindness Simulation Color Blindness Simulation

Protanopia

333380
7C7DC0
AFB0F3
918E27
E9E831

Deuteranopia

33337A
7975BD
ACA8F0
9FB324
ECF03D

Tritanopia

336D69
69B6B4
9CE9E7
F21D1B
FC5861

Achromatopsia

3F3F3F
909090
C3C3C3
525252
C4C4C4

Shades & Tints Shades & Tints

#333399

Dark
Light

#6699CC

Dark
Light

#99CCFF

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #333399;
  --color-2: #6699cc;
  --color-3: #99ccff;
  --color-4: #ff0033;
  --color-5: #ffcc00;
}

SCSS

$color-1: #333399;
$color-2: #6699cc;
$color-3: #99ccff;
$color-4: #ff0033;
$color-5: #ffcc00;

TAILWIND

colors: {
  'brand-1': '#333399',
  'brand-2': '#6699cc',
  'brand-3': '#99ccff',
  'brand-4': '#ff0033',
  'brand-5': '#ffcc00',
}

RGB Array

[51, 51, 153], [102, 153, 204], [153, 204, 255], [255, 0, 51], [255, 204, 0]

FAQ FAQ

What scenarios is this 5-color palette suitable for?

This cool-style palette of #333399, #6699CC, #99CCFF, #FF0033, #FFCC00 is ideal for: social media posters, mobile apps, e-commerce promos. Vivid colors effectively attract user attention. It is a vibrant and energetic choice among 5-color palettes.

How to use this palette in CSS or frontend projects?

Copy the CSS variables directly: --color-1: #333399; --color-2: #6699cc; --color-3: #99ccff; --color-4: #ff0033; --color-5: #ffcc00. LangColor editor supports one-click export to CSS, SCSS, Tailwind, JSON and more. Click the "Export" button to choose your format.

What UI/UX design tips apply to this palette?

Medium-brightness colors suit brand primary and accent colors. Use the darkest for text, lightest for backgrounds, and mid-tones for emphasis. Use the "Contrast Matrix" tool in LangColor editor to check WCAG accessibility levels for every color pair.

Which industries or brands suit this palette?

This cool-style 5-color scheme is especially suited for food & dining, entertainment, kids education, social industries. Bold colors convey vitality and innovation. Click "AI Analysis" in the editor for more detailed brand color suggestions.

🎨 Open this palette in Editor →

Generated by LangColor online color tool · Breaking the barrier between language and color