Colour

#423B01

#423B01
Yellow
Dark
Nearest: Dark olivegreen

#423B01 is a yellow with RGB values 66, 59, 1 and HSL 54°, 97%, 13%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#423B01#423B01

HEX#423B01

RGBrgb(66, 59, 1)

RGB (0–1)0.2588, 0.2314, 0.0039

RGB percentages25.9%, 23.1%, 0.4%

HSLhsl(53.5, 97%, 13.1%)

HSV / HSBhsv(53.5, 98.5%, 25.9%)

CMYK0%, 10.6%, 98.5%, 74.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,340,481

CSS custom property--colour: #423B01;

Brightness & contrast

Relative luminance0.04288WCAG 2.x, 0 is black and 1 is white

Perceived brightness57.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.3:1

Contrast with white11.3:1WCAG normal text: AAA

Contrast with black1.86:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#BDC4FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#423900no red cones; affects about 1% of men; ΔE 1.4 from the original

Deuteranopia#443C05no green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#483631no blue cones; rare, and affects men and women equally; ΔE 29 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.3:1WCAG large text: AAA

Contrast with black, large text1.86:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 23.3 Saddle brown · ΔE 33.8 Olive · ΔE 37.2 Dark slate grey · ΔE 38.2 Sienna · ΔE 38.4 Dim grey · ΔE 38.7

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 23.3, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#010842

Analogous#421B01, #284201

Triadic#01423B, #3B0142

Split complementary#012942, #1B0142

Tetradic#01421A, #010842, #420128

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FBE214

Lighter +30%#D9C203

Lighter +20%#A69503

Lighter +10%#746802

Darker −10%#100E00

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#433C00

Less saturated −25%#3A3409

Channel breakdown

R66

G59

Red66 (25.9%)

Green59 (23.1%)

Blue1 (0.4%)

Hue53.54°

Saturation (HSL)97.01%

Lightness13.14%

Dominant channelRed

Hex per channelR 42 · G 3B · B 01

Keep nerding

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#423B01

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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