HEX atlas value

#00CCCC

#00CCCC is a cool cyan HEX color close to Robin Egg Blue. According to Colors Encyclopedia, it converts to RGB 0, 204, 204, HSL 180, 100%, 40%, has luminance 0.4755, and belongs to the vibrant group.

cyan cool vibrant

#00CCCC Sample readable text

HEX #00CCCC

RGB rgb(0, 204, 204)

HSL hsl(180 100% 40%)

CMYK cmyk(100, 0, 0, 20)

Luminance 0.4755

Contrast Black 10.51:1White 2:1

CSS

--color-00cccc: #00CCCC;
.background-00cccc { background-color: #00CCCC; }
.text-00cccc { color: #00CCCC; }

Luminance0.4755

Black text10.51:1AA Pass

White text2:1AA Fail

hexCanonical HEX value

rgbRed, green, blue channels

hslHue, saturation, lightness

cmykApproximate print conversion

wcagAA and AAA contrast options

harmoniesMathematical harmony sets

variantsGenerated tone variants

nearestColorsKnowledge graph neighbors

Structured sections

Color systems

{"hex":"#00CCCC","rgb":[0,204,204],"hsl":[180,100,40],"cmyk":[100,0,0,20],"luminance":0.4755,"contrast":{"black":10.51,"white":2}}

WCAG

{"AA":["#000000","#1A1A1A","#36454F"],"AAA":["#000000","#1A1A1A"]}

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":10.51,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#29FFFF","hex":"#29FFFF","family":"cyan","bestTextColor":"#000000","contrastBlack":16.84,"contrastWhite":1.25,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Dark Turquoise","hex":"#00CED1","family":"cyan","bestTextColor":"#000000","contrastBlack":10.75,"contrastWhite":1.95,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Deep Sky Blue","hex":"#00BFFF","family":"blue","bestTextColor":"#000000","contrastBlack":9.9,"contrastWhite":2.12,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#00CC66","hex":"#00CC66","family":"green","bestTextColor":"#000000","contrastBlack":9.83,"contrastWhite":2.14,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#16B6B6","hex":"#16B6B6","family":"cyan","bestTextColor":"#000000","contrastBlack":8.4,"contrastWhite":2.5,"wcagAA":["#000000","#1A1A1A"],"wcagAAA":["#000000"]}]

AI context

{"semanticGroups":["cool cyan","vibrant","vibrant cyan","Robin Egg Blue adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/00cccc.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/robin-egg-blue.json","https://www.colorsencyclopedia.com/api/colors/dark-turquoise.json","https://www.colorsencyclopedia.com/api/colors/deep-sky-blue.json"]}

Harmonies

{"complementary":"#CC0000","analogous":["#00CC66","#0066CC"],"triadic":["#CC00CC","#CCCC00"],"tetradic":["#6600CC","#CC0000","#66CC00"],"splitComplementary":["#CC0066","#CC6600"],"monochromatic":["#29FFFF","#00CCCC","#007070"]}

Variants

{"light":"#29FFFF","dark":"#007070","saturated":"#00CCCC","desaturated":"#16B6B6","pastel":"#5AF2F2","neon":"#00F5F5"}

Nearest named colors

[{"slug":"robin-egg-blue","name":"Robin Egg Blue","hex":"#00CCCC","distance":0},{"slug":"dark-turquoise","name":"Dark Turquoise","hex":"#00CED1","distance":5.385164807134504},{"slug":"deep-sky-blue","name":"Deep Sky Blue","hex":"#00BFFF","distance":52.630789467763066},{"slug":"light-sea-green","name":"Light Sea Green","hex":"#20B2AA","distance":53.44155686354955},{"slug":"manganese-blue","name":"Manganese Blue","hex":"#03A89E","distance":58.489315263559035}]

HEX meaning and use

About #00CCCC

#00CCCC is classified as a cool cyan value with vibrant visual character. #00CCCC is visually closest to Robin Egg Blue, a named cyan color with HEX #00CCCC.

The RGB channels are 0, 204, and 204, with green carrying the strongest channel weight. In HSL, the hue is 180deg with 100% saturation and 40% lightness, so this page treats it as a high-saturation, mid-lightness atlas color rather than a generic swatch.

According to Colors Encyclopedia, this HEX value works best for color conversion, WCAG contrast checks, CSS color tokens, and high-energy accents. Its luminance is 0.4755, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 0.00, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text10.51:1AA Pass

White text2:1AA Fail

AA text options: #000000, #1A1A1A, #36454F.

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #00CCCC needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000010.51:1 · AAA

White text#FFFFFF2:1 · Fail

Accessible Alternatives

#29FFFF#000000 text · best 16.84:1#29FFFF

Dark Turquoise#000000 text · best 10.75:1#00CED1

Deep Sky Blue#000000 text · best 9.9:1#00BFFF

#00CC66#000000 text · best 9.83:1#00CC66

#16B6B6#000000 text · best 8.4:1#16B6B6

Generated Palette

Robin Egg Blue#00CCCC

#CC0000#CC0000

#00CC66#00CC66

Anodized Blue#0066CC

#29FFFF#29FFFF

#007070#007070

Color Harmonies

#CC0000#CC0000

#00CC66#00CC66

Anodized Blue#0066CC

#CC00CC#CC00CC

#CCCC00#CCCC00

Variants

#29FFFF#29FFFF

#007070#007070

Robin Egg Blue#00CCCC

#16B6B6#16B6B6

#5AF2F2#5AF2F2

#00F5F5#00F5F5

Nearest Named Colors

Robin Egg Blue#00CCCC

Dark Turquoise#00CED1

Deep Sky Blue#00BFFF

Light Sea Green#20B2AA

Manganese Blue#03A89E

#00CCCC

CSS

Machine-Readable HEX Data (JSON)

About #00CCCC

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides