Colour

#40090C

#40090C
Red
Dark
Nearest: Black

#40090C is a red with RGB values 64, 9, 12 and HSL 357°, 75%, 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

#40090C#40090C

HEX#40090C

RGBrgb(64, 9, 12)

RGB (0–1)0.251, 0.0353, 0.0471

RGB percentages25.1%, 3.5%, 4.7%

HSLhsl(356.7, 75.3%, 14.3%)

HSV / HSBhsv(356.7, 85.9%, 25.1%)

CMYK0%, 85.9%, 81.2%, 74.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,196,620

CSS custom property--colour: #40090C;

Brightness & contrast

Relative luminance0.01312WCAG 2.x, 0 is black and 1 is white

Perceived brightness35.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.64:1

Contrast with white16.64:1WCAG normal text: AAA

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

Greyscale equivalent#151515

Inverted#BFF6F3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#19170Cno red cones; affects about 1% of men; ΔE 28.4 from the original

Deuteranopia#27220Ano green cones; the most common form, about 1% of men; ΔE 28 from the original

Tritanopia#47000Bno blue cones; rare, and affects men and women equally; ΔE 6.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.64:1WCAG large text: AAA

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

Named colours

Black · ΔE 31.3 Maroon · ΔE 36.3 Saddle brown · ΔE 38.5 Brown · ΔE 39.4 Sienna · ΔE 39.8 Dark red · ΔE 41.4

Nearest named CSS colourBlack (#000000)ΔE 31.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#09403D

Analogous#400927, #402209

Triadic#0C4009, #090C40

Split complementary#094022, #092740

Tetradic#274009, #09403D, #220940

Tints, shades & saturation

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

Lighter +40%#E2333C

Lighter +30%#C61C25

Lighter +20%#99161D

Lighter +10%#6D0F14

Darker −10%#130304

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#490004

Less saturated −25%#371214

Channel breakdown

R64

B12

Red64 (25.1%)

Green9 (3.5%)

Blue12 (4.7%)

Hue356.73°

Saturation (HSL)75.34%

Lightness14.31%

Dominant channelRed

Hex per channelR 40 · G 09 · B 0C

Keep nerding

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#40090C

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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