Colour

#66371D

#66371D
Orange
Dark
Nearest: Saddle brown

#66371D is a orange with RGB values 102, 55, 29 and HSL 21°, 56%, 26%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#66371D#66371D

HEX#66371D

RGBrgb(102, 55, 29)

RGB (0–1)0.4, 0.2157, 0.1137

RGB percentages40%, 21.6%, 11.4%

HSLhsl(21.4, 55.7%, 25.7%)

HSV / HSBhsv(21.4, 71.6%, 40%)

CMYK0%, 46.1%, 71.6%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,698,781

CSS custom property--colour: #66371D;

Brightness & contrast

Relative luminance0.05646WCAG 2.x, 0 is black and 1 is white

Perceived brightness70.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.86:1

Contrast with white9.86:1WCAG normal text: AAA

Contrast with black2.13:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#99C8E2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443D1Ano red cones; affects about 1% of men; ΔE 21.2 from the original

Deuteranopia#4F471Dno green cones; the most common form, about 1% of men; ΔE 21.3 from the original

Tritanopia#702E31no blue cones; rare, and affects men and women equally; ΔE 16.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.86:1WCAG large text: AAA

Contrast with black, large text2.13:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 20 Sienna · ΔE 21.6 Maroon · ΔE 32.5 Brown · ΔE 33 Dim grey · ΔE 34.9 Dark red · ΔE 36.4

Nearest named CSS colourSaddle brown (#8B4513)ΔE 19.97, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D4C66

Analogous#661D27, #665C1D

Triadic#1D6637, #371D66

Split complementary#1D665B, #1D2866

Tetradic#27661D, #1D4C66, #5C1D66

Tints, shades & saturation

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

Lighter +40%#D89977

Lighter +30%#CD7C4F

Lighter +20%#B56234

Lighter +10%#8E4C28

Darker −10%#3E2212

Darker −20%#170C06

Darker −30%#000000

Darker −40%#000000

More saturated +25%#76320D

Less saturated −25%#563C2D

Channel breakdown

R102

G55

B29

Red102 (40%)

Green55 (21.6%)

Blue29 (11.4%)

Hue21.37°

Saturation (HSL)55.73%

Lightness25.69%

Dominant channelRed

Hex per channelR 66 · G 37 · B 1D

Keep nerding

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#66371D

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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