HEX atlas value

#CBBF0B

#CBBF0B is a warm yellow HEX color close to Mustard Yellow. According to Colors Encyclopedia, it converts to RGB 203, 191, 11, HSL 56, 90%, 42%, has luminance 0.4998, and belongs to the vibrant group.

yellow warm vibrant

#CBBF0B Sample readable text

HEX #CBBF0B

RGB rgb(203, 191, 11)

HSL hsl(56 90% 42%)

CMYK cmyk(0, 6, 95, 20)

Luminance 0.4998

Contrast Black 11:1White 1.91:1

CSS

--color-cbbf0b: #CBBF0B;
.background-cbbf0b { background-color: #CBBF0B; }
.text-cbbf0b { color: #CBBF0B; }

Luminance0.4998

Black text11:1AA Pass

White text1.91:1AA 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":"#CBBF0B","rgb":[203,191,11],"hsl":[56,90,42],"cmyk":[0,6,95,20],"luminance":0.4998,"contrast":{"black":11,"white":1.91}}

WCAG

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

Safe pairings

[{"name":"Black text","hex":"#000000","contrast":11,"wcagAA":true,"wcagAAA":true},{"name":"White text","hex":"#FFFFFF","contrast":1.91,"wcagAA":false,"wcagAAA":false}]

Accessible alternatives

[{"name":"#F5E93D","hex":"#F5E93D","family":"yellow","bestTextColor":"#000000","contrastBlack":16.61,"contrastWhite":1.26,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A","#36454F"]},{"name":"Citrine","hex":"#E4D00A","family":"yellow","bestTextColor":"#000000","contrastBlack":13.33,"contrastWhite":1.58,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#D6C800","hex":"#D6C800","family":"yellow","bestTextColor":"#000000","contrastBlack":12.12,"contrastWhite":1.73,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"Peridot","hex":"#B4C424","family":"yellow","bestTextColor":"#000000","contrastBlack":10.86,"contrastWhite":1.93,"wcagAA":["#000000","#1A1A1A","#36454F"],"wcagAAA":["#000000","#1A1A1A"]},{"name":"#0B18CB","hex":"#0B18CB","family":"blue","bestTextColor":"#FFFFFF","contrastBlack":2.01,"contrastWhite":10.46,"wcagAA":["#FFFFFF","#F5F5F5"],"wcagAAA":["#FFFFFF","#F5F5F5"]}]

AI context

{"semanticGroups":["warm yellow","vibrant","vibrant yellow","Mustard Yellow adjacent"],"useCases":["color conversion","WCAG contrast checks","CSS color tokens","high-energy accents","highlight and warning systems"],"contrastSafeWith":["#000000","#1A1A1A","#36454F"],"relatedEndpoints":["https://www.colorsencyclopedia.com/api/hex/cbbf0b.json","https://www.colorsencyclopedia.com/api/hex.json","https://www.colorsencyclopedia.com/api/colors/mustard-yellow.json","https://www.colorsencyclopedia.com/api/colors/citrine.json","https://www.colorsencyclopedia.com/api/colors/acid-green.json"]}

Harmonies

{"complementary":"#0B18CB","analogous":["#CB5E0B","#78CB0B"],"triadic":["#0BCBBF","#BF0BCB"],"tetradic":["#0BCB5E","#0B18CB","#CB0B78"],"splitComplementary":["#0B78CB","#5E0BCB"],"monochromatic":["#F5E93D","#CBBF0B","#746D06"]}

Variants

{"light":"#F5E93D","dark":"#746D06","saturated":"#D6C800","desaturated":"#B4AA22","pastel":"#EAE26C","neon":"#FFEE00"}

Nearest named colors

[{"slug":"mustard-yellow","name":"Mustard Yellow","hex":"#E1AD01","distance":30.133038346638727},{"slug":"citrine","name":"Citrine","hex":"#E4D00A","distance":30.24896692450835},{"slug":"acid-green","name":"Acid Green","hex":"#B0BF1A","distance":30.886890422961002},{"slug":"peridot","name":"Peridot","hex":"#B4C424","distance":34.336569426778794},{"slug":"goldenrod","name":"Goldenrod","hex":"#DAA520","distance":36.6333181680284}]

HEX meaning and use

About #CBBF0B

#CBBF0B is classified as a warm yellow value with vibrant visual character. #CBBF0B is visually closest to Mustard Yellow, a named yellow color with HEX #E1AD01.

The RGB channels are 203, 191, and 11, with red carrying the strongest channel weight. In HSL, the hue is 56deg with 90% saturation and 42% 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 0.4998, black text provides the stronger contrast for readable interface or documentation use, and Its nearest named-color distance is 30.13, which helps separate this atlas value from adjacent named color records.

WCAG Accessibility

Black text11:1AA Pass

White text1.91:1AA Fail

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

AAA text options: #000000, #1A1A1A.

Accessibility-Safe Pairings and Alternatives

Use these pairings when #CBBF0B needs readable text, badges, interface states, or nearby accessible alternatives.

Black text#00000011:1 · AAA

White text#FFFFFF1.91:1 · Fail

Accessible Alternatives

#F5E93D#000000 text · best 16.61:1#F5E93D

Citrine#000000 text · best 13.33:1#E4D00A

#D6C800#000000 text · best 12.12:1#D6C800

Peridot#000000 text · best 10.86:1#B4C424

#0B18CB#FFFFFF text · best 10.46:1#0B18CB

Generated Palette

#CBBF0B#CBBF0B

#0B18CB#0B18CB

#CB5E0B#CB5E0B

#78CB0B#78CB0B

#F5E93D#F5E93D

#746D06#746D06

Color Harmonies

#0B18CB#0B18CB

#CB5E0B#CB5E0B

#78CB0B#78CB0B

#0BCBBF#0BCBBF

#BF0BCB#BF0BCB

Variants

#F5E93D#F5E93D

#746D06#746D06

#D6C800#D6C800

#B4AA22#B4AA22

#EAE26C#EAE26C

#FFEE00#FFEE00

Nearest Named Colors

Mustard Yellow#E1AD01

Citrine#E4D00A

Acid Green#B0BF1A

Peridot#B4C424

Goldenrod#DAA520

#CBBF0B

CSS

Machine-Readable HEX Data (JSON)

About #CBBF0B

WCAG Accessibility

Accessibility-Safe Pairings and Alternatives

Accessible Alternatives

Generated Palette

Color Harmonies

Variants

Nearest Named Colors

Related HEX Guides