HEX atlas value

#00BFFF

#00BFFF is a cool blue HEX color close to Deep Sky Blue. According to Colors Encyclopedia, it converts to RGB 0, 191, 255, HSL 195, 100%, 50%, has luminance 0.4448, and belongs to the vibrant group.

blue cool vibrant

#00BFFF Sample readable text

HEX #00BFFF

RGB rgb(0, 191, 255)

HSL hsl(195 100% 50%)

CMYK cmyk(100, 25, 0, 0)

Luminance 0.4448

Contrast Black 9.9:1White 2.12:1

CSS

--color-00bfff: #00BFFF;
.background-00bfff { background-color: #00BFFF; }
.text-00bfff { color: #00BFFF; }

Luminance0.4448

Black text9.9:1AA Pass

White text2.12:1AA 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":"#00BFFF","rgb":[0,191,255],"hsl":[195,100,50],"cmyk":[100,25,0,0],"luminance":0.4448,"contrast":{"black":9.9,"white":2.12}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":9.9,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":2.12,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"Cyan","hex":"#00FFFF","family":"cyan","bestTextColor":"#000000","contrastBlack":16.75,"contrastWhite":1.25,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#00FFBF","hex":"#00FFBF","family":"cyan","bestTextColor":"#000000","contrastBlack":16.06,"contrastWhite":1.31,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"#5CD6FF","hex":"#5CD6FF","family":"blue","bestTextColor":"#000000","contrastBlack":12.52,"contrastWhite":1.68,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Dark Turquoise","hex":"#00CED1","family":"cyan","bestTextColor":"#000000","contrastBlack":10.75,"contrastWhite":1.95,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Robin Egg Blue","hex":"#00CCCC","family":"cyan","bestTextColor":"#000000","contrastBlack":10.51,"contrastWhite":2,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]}]

AI context

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

Harmonies

{"complementary":"#FF4000","analogous":["#00FFBF","#0040FF"],"triadic":["#FF00BF","#BFFF00"],"tetradic":["#BF00FF","#FF4000","#40FF00"],"splitComplementary":["#FF0040","#FFBF00"],"monochromatic":["#5CD6FF","#00BFFF","#007AA3"]}

Variants

{"light":"#5CD6FF","dark":"#007AA3","saturated":"#00BFFF","desaturated":"#1CB1E3","pastel":"#89DAF5","neon":"#29C9FF"}

Nearest named colors

[{"slug":"deep-sky-blue","name":"Deep Sky Blue","hex":"#00BFFF","distance":0},{"slug":"dark-turquoise","name":"Dark Turquoise","hex":"#00CED1","distance":48.38388161361178},{"slug":"robin-egg-blue","name":"Robin Egg Blue","hex":"#00CCCC","distance":52.630789467763066},{"slug":"dodger-blue","name":"Dodger Blue","hex":"#1E90FF","distance":55.758407437802596},{"slug":"aqua","name":"Aqua","hex":"#00FFFF","distance":64}]

HEX meaning and use

About #00BFFF

#00BFFF is classified as a cool blue value with vibrant visual character. #00BFFF is visually closest to Deep Sky Blue, a named blue color with HEX #00BFFF.

The RGB channels are 0, 191, and 255, with blue carrying the strongest channel weight. In HSL, the hue is 195deg with 100% saturation and 50% 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 0.4448, 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 text9.9:1AA Pass

White text2.12:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

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

Black text#0000009.9:1 · AAA

White text#FFFFFF2.12:1 · Fail

Accessible Alternatives

Cyan#000000 text · best 16.75:1#00FFFF

#00FFBF#000000 text · best 16.06:1#00FFBF

#5CD6FF#000000 text · best 12.52:1#5CD6FF

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

Robin Egg Blue#000000 text · best 10.51:1#00CCCC

Generated Palette

Deep Sky Blue#00BFFF

#FF4000#FF4000

#00FFBF#00FFBF

#0040FF#0040FF

#5CD6FF#5CD6FF

#007AA3#007AA3

Color Harmonies

#FF4000#FF4000

#00FFBF#00FFBF

#0040FF#0040FF

#FF00BF#FF00BF

#BFFF00#BFFF00

Variants

#5CD6FF#5CD6FF

#007AA3#007AA3

Deep Sky Blue#00BFFF

#1CB1E3#1CB1E3

#89DAF5#89DAF5

#29C9FF#29C9FF

Nearest Named Colors

Deep Sky Blue#00BFFF

Dark Turquoise#00CED1

Robin Egg Blue#00CCCC

Dodger Blue#1E90FF

Aqua#00FFFF

#00BFFF

CSS

Machine-Readable HEX Data (JSON)

About #00BFFF

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides