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#99FF00 · #66CC00 · #CCFF00 · #FFFF00 · #FFCC00

summer

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

Scene Recommendations Scene Recommendations

Emotion EMOTION

PassionateDynamicWarm

Industry INDUSTRY

EntertainmentFMCG

UI Context UI CONTEXT

Sale PromoSocial App

Color Details Color Details

#99FF00

Grass Green · Chartreuse · Olive Green

HEX
#99FF00
RGB
rgb(153, 255, 0)
HSL
hsl(84, 100%, 50%)
HSB
hsb(84, 100%, 100%)
CMYK
cmyk(40%, 0%, 100%, 0%)
Oklch
oklch(90.2% 0.253 132.6)

Traditional「Grass Green」· Paint「Olive Green」· Creative Blush Sunrise

#66CC00

Pine Green · Chartreuse · Forest Green

HEX
#66CC00
RGB
rgb(102, 204, 0)
HSL
hsl(90, 100%, 40%)
HSB
hsb(90, 100%, 80%)
CMYK
cmyk(50%, 0%, 100%, 20%)
Oklch
oklch(75.3% 0.223 135.8)

Traditional「Pine Green」· Paint「Forest Green」· Creative Blush Sunrise

#CCFF00

Grass Green · Yellow · Olive Green

HEX
#CCFF00
RGB
rgb(204, 255, 0)
HSL
hsl(72, 100%, 50%)
HSB
hsb(72, 100%, 100%)
CMYK
cmyk(20%, 0%, 100%, 0%)
Oklch
oklch(93.1% 0.229 123.1)

Traditional「Grass Green」· Paint「Olive Green」· Creative Blush Sunrise

#FFFF00

Autumn Sage · Yellow · Honey Gold

HEX
#FFFF00
RGB
rgb(255, 255, 0)
HSL
hsl(60, 100%, 50%)
HSB
hsb(60, 100%, 100%)
CMYK
cmyk(0%, 0%, 100%, 0%)
Oklch
oklch(96.8% 0.211 109.8)

Traditional「Autumn Sage」· Paint「Honey Gold」· 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

99FF00
6600FF

Analogous

FFE600
99FF00
1AFF00

Triadic

99FF00
0099FF
FF0099

Split-Comp.

99FF00
0019FF
E600FF

Tetradic

99FF00
00FFE6
6600FF
FF0019

Contrast Matrix WCAG 2.1 Contrast

99FF00
66CC00
CCFF00
FFFF00
FFCC00
—
1.6
Fail
1.1
Fail
1.2
Fail
1.2
Fail
1.6
Fail
—
1.8
Fail
1.9
Fail
1.4
Fail
1.1
Fail
1.8
Fail
—
1.1
Fail
1.3
Fail
1.2
Fail
1.9
Fail
1.1
Fail
—
1.4
Fail
1.2
Fail
1.4
Fail
1.3
Fail
1.4
Fail
—
White BG
1.3Fail
2.1Fail
1.2Fail
1.1Fail
1.5Fail
Black BG
16.7AAA
10.2AAA
17.9AAA
19.6AAA
13.9AAA

Color Blindness Simulation Color Blindness Simulation

Protanopia

C5C63E
929331
E2E33E
FFFF3E
E9E831

Deuteranopia

BFB84D
8C853D
DFDB4D
FFFF4D
ECF03D

Tritanopia

9E6E79
6B5861
CF6E79
FF6E79
FC5861

Achromatopsia

C3C3C3
969696
D3D3D3
E2E2E2
C4C4C4

Shades & Tints Shades & Tints

#99FF00

Dark
Light

#66CC00

Dark
Light

#CCFF00

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #99ff00;
  --color-2: #66cc00;
  --color-3: #ccff00;
  --color-4: #ffff00;
  --color-5: #ffcc00;
}

SCSS

$color-1: #99ff00;
$color-2: #66cc00;
$color-3: #ccff00;
$color-4: #ffff00;
$color-5: #ffcc00;

TAILWIND

colors: {
  'brand-1': '#99ff00',
  'brand-2': '#66cc00',
  'brand-3': '#ccff00',
  'brand-4': '#ffff00',
  'brand-5': '#ffcc00',
}

RGB Array

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

FAQ FAQ

What scenarios is this 5-color palette suitable for?

This summer-style palette of #99FF00, #66CC00, #CCFF00, #FFFF00, #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: #99ff00; --color-2: #66cc00; --color-3: #ccff00; --color-4: #ffff00; --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 summer-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