Mustard Color Code: #CEB301, RGB, HSL & CMYK

Mustard color values

HEX #CEB301

RGB rgb(206, 179, 1)

HSL hsl(52, 99%, 41%)

HSV 52, 100%, 81%

HWB hwb(52 0% 19%)

CMYK 0%, 13%, 100%, 19%

Decimal 13546241

41%HSL lightness (medium-dark)

99%HSL saturation (vivid)

52°Hue angle (yellow)

0.454Relative luminance

CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.

What is Mustard?

“Mustard” is a crowd-sourced name from the XKCD Color Survey, in which participants typed names for colors they were shown. It is a popular everyday label rather than an official standard.

Its hue angle of 52° places it in the yellow part of the color wheel, with 99% saturation (vivid) and 41% lightness (medium-dark). It is a warm color.

Compared with the other yellow colors in the Aqeeb Studio library, it is lighter than 4% of them and more saturated than 49% of them.

Its relative luminance is 0.454, which makes it a light color. That is above the 0.179 crossover point at which black and white text have equal contrast, so black text has the advantage.

Mustard counts as a light color: its HSL lightness is 41% and its relative luminance is 0.454. Black text reads best on it (10.07:1 contrast).

Text contrast on Mustard

WCAG contrast of white and black text on Mustard
Text	Preview	Ratio	AA normal	AA large	AAA normal	AAA large
White text	Sample text	2.08:1 Poor	Fail	Fail	Fail	Fail
Black text	Sample text	10.07:1 Excellent	Pass	Pass	Pass	Pass

Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.

Colors that go with Mustard

Complementary color

Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.

≈ True Blue#011CCE

Analogous colors

Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.

≈ Deep Orange#CE4D01 ≈ Apple Green#82CE01

Triadic colors

A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.

≈ Turquoise#01CEB3 ≈ Vibrant Purple#B301CE

Split-complementary colors

Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.

≈ Cerulean#0182CE ≈ Violet Blue#4D01CE

Tetradic colors

A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.

≈ Vibrant Green#1CCE01 ≈ True Blue#011CCE ≈ Vibrant Purple#B301CE

Monochromatic variants

Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.

#403800#403800

#877501#877501

#CEB301#CEB301

#FEE019#FEE019

#FEE960#FEE960

A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.

Tints and shades of Mustard

Lighter tints (mixed with white)

Darker shades (mixed with black)

Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.

Dark Yellow#D5B60A Mustard Yellow#D2BD0A Olive Yellow#C2B709 Burnt Yellow#D5AB09 Ocher#BF9B0C Yellow Ochre#CB9D06 Brown Yellow#B29705 Golden#F5BF03

Where to use Mustard

Card, highlight and section backgrounds with dark text (10.07:1 contrast with black)
Accents that need to stand out: call-to-action buttons, charts and illustrations
Infographics and chart series
Highlighters, badges and caution markers
Backgrounds that need to feel bright
Accents on dark layouts

Use Mustard in CSS

:root {
  --color-mustard: #CEB301;
}

.element {
  color: var(--color-mustard);
  background-color: #CEB301;
  border: 2px solid #CEB301;
}

Questions about Mustard

What is the HEX code for Mustard?

Mustard is #CEB301.

What is the RGB value of Mustard?

The RGB value of Mustard is 206, 179, 1: 206 red, 179 green and 1 blue on a 0–255 scale, written rgb(206, 179, 1) in CSS.

What is the HSL value of Mustard?

The HSL value of Mustard is 52°, 99%, 41% (hue, saturation, lightness), written hsl(52, 99%, 41%) in CSS.

What is the CMYK value of Mustard?

A standard conversion gives about C 0%, M 13%, Y 100%, K 19%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.

Is Mustard a light or dark color?

Mustard counts as a light color: its HSL lightness is 41% and its relative luminance is 0.454. Black text reads best on it (10.07:1 contrast).

How does Mustard look with white text?

White text on Mustard has a contrast ratio of 2.08:1, rated Poor. It falls below the WCAG minimum for text.

How does Mustard look with black text?

Black text on Mustard has a contrast ratio of 10.07:1, rated Excellent. It meets WCAG AA for normal text.

What colors go well with Mustard?

True Blue is its complementary color, and Deep Orange sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.

Where can Mustard be used?

It suits card, highlight and section backgrounds with dark text (10.07:1 contrast with black); accents that need to stand out: call-to-action buttons, charts and illustrations; infographics and chart series.

How do I use Mustard in CSS?

Use color: #CEB301; for text, background-color: #CEB301; for fills, or define a custom property such as --color-mustard: #CEB301; and reuse it with var(--color-mustard).

About this color page

Crowd-sourced name from the XKCD Color Survey (CC0). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.

Mustard Color Code: #CEB301