Colour

#423F00

#423F00
Yellow
Dark
Nearest: Dark olivegreen

#423F00 is a yellow with RGB values 66, 63, 0 and HSL 57°, 100%, 13%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#423F00#423F00

HEX#423F00

RGBrgb(66, 63, 0)

RGB (0–1)0.2588, 0.2471, 0

RGB percentages25.9%, 24.7%, 0%

HSLhsl(57.3, 100%, 12.9%)

HSV / HSBhsv(57.3, 100%, 25.9%)

CMYK0%, 4.5%, 100%, 74.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,341,504

CSS custom property--colour: #423F00;

Brightness & contrast

Relative luminance0.04713WCAG 2.x, 0 is black and 1 is white

Perceived brightness60.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.81:1

Contrast with white10.81:1WCAG normal text: AAA

Contrast with black1.94:1WCAG normal text: Fail

Greyscale equivalent#3B3B3B

Inverted#BDC0FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#463C00no red cones; affects about 1% of men; ΔE 4.1 from the original

Deuteranopia#473E05no green cones; the most common form, about 1% of men; ΔE 3.9 from the original

Tritanopia#483A34no blue cones; rare, and affects men and women equally; ΔE 30.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.81:1WCAG large text: AAA

Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 21 Olive · ΔE 34.7 Saddle brown · ΔE 35.3 Dark green · ΔE 39.1 Olivedrab · ΔE 39.1 Dark slate grey · ΔE 39.1

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 20.96, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#000342

Analogous#421E00, #244200

Triadic#00423F, #3F0042

Split complementary#002442, #1E0042

Tetradic#00421E, #000342, #420024

Tints, shades & saturation

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

Lighter +40%#FFF40F

Lighter +30%#DBD100

Lighter +20%#A8A000

Lighter +10%#757000

Darker −10%#0F0E00

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#423F00

Less saturated −25%#3A3808

Channel breakdown

R66

G63

Red66 (25.9%)

Green63 (24.7%)

Blue0 (0%)

Hue57.27°

Saturation (HSL)100%

Lightness12.94%

Dominant channelRed

Hex per channelR 42 · G 3F · B 00

Keep nerding

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#423F00

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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