Recognised as Colour

#42031E

#42031E
Red
Dark
Nearest: Black

#42031E is a red with RGB values 66, 3, 30 and HSL 334°, 91%, 14%. It is a dark colour, so white text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#42031E#42031E

HEX#42031E

RGBrgb(66, 3, 30)

RGB (0–1)0.2588, 0.0118, 0.1176

RGB percentages25.9%, 1.2%, 11.8%

HSLhsl(334.3, 91.3%, 13.5%)

HSV / HSBhsv(334.3, 95.5%, 25.9%)

CMYK0%, 95.5%, 54.5%, 74.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,326,174

CSS custom property--colour: #42031E;

Brightness & contrast

Relative luminance0.01317WCAG 2.x, 0 is black and 1 is white

Perceived brightness37.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.62:1

Contrast with white16.62:1WCAG normal text: AAA

Contrast with black1.26:1WCAG normal text: Fail

Greyscale equivalent#121212

Inverted#BDFCE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#13161Fno red cones; affects about 1% of men; ΔE 30.8 from the original

Deuteranopia#24231Dno green cones; the most common form, about 1% of men; ΔE 32 from the original

Tritanopia#49000Fno blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text16.62:1WCAG large text: AAA

Contrast with black, large text1.26:1WCAG large text: Fail

Named colours

Black · ΔE 32.9 Maroon · ΔE 43.3 Brown · ΔE 43.7 Dim grey · ΔE 45.2 Dark slate grey · ΔE 47.2 Dark slateblue · ΔE 47.5

Nearest named CSS colourBlack (#000000)ΔE 32.93, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#034227

Analogous#42033E, #420703

Triadic#1E4203, #031E42

Split complementary#034207, #033E42

Tetradic#3E4203, #034227, #070342

Tints, shades & saturation

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

Lighter +40%#F51C79

Lighter +30%#D40A61

Lighter +20%#A4074A

Lighter +10%#730534

Darker −10%#110108

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#45001E

Less saturated −25%#390C1F

Channel breakdown

R66

B30

Red66 (25.9%)

Green3 (1.2%)

Blue30 (11.8%)

Hue334.29°

Saturation (HSL)91.3%

Lightness13.53%

Dominant channelRed

Hex per channelR 42 · G 03 · B 1E

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#42031E

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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