Colour

#6B0100

#6B0100
Red
Dark
Nearest: Maroon

#6B0100 is a red with RGB values 107, 1, 0 and HSL 1°, 100%, 21%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#6B0100#6B0100

HEX#6B0100

RGBrgb(107, 1, 0)

RGB (0–1)0.4196, 0.0039, 0

RGB percentages42%, 0.4%, 0%

HSLhsl(0.6, 100%, 21%)

HSV / HSBhsv(0.6, 100%, 42%)

CMYK0%, 99.1%, 100%, 58%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,012,608

CSS custom property--colour: #6B0100;

Brightness & contrast

Relative luminance0.03148WCAG 2.x, 0 is black and 1 is white

Perceived brightness58.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.89:1

Contrast with white12.89:1WCAG normal text: AAA

Contrast with black1.63:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#94FEFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2A2300no red cones; affects about 1% of men; ΔE 45.4 from the original

Deuteranopia#423900no green cones; the most common form, about 1% of men; ΔE 44.8 from the original

Tritanopia#770003no blue cones; rare, and affects men and women equally; ΔE 5.3 from the original

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

Contrast with white, large text12.89:1WCAG large text: AAA

Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Maroon · ΔE 10.2 Dark red · ΔE 15.3 Brown · ΔE 18.6 Firebrick · ΔE 23.9 Saddle brown · ΔE 24.8 Sienna · ΔE 26.8

Nearest named CSS colourMaroon (#800000)ΔE 10.19, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#006A6B

Analogous#6B0034, #6B3700

Triadic#006B01, #01006B

Split complementary#006B37, #00346B

Tetradic#346B00, #006A6B, #37006B

Tints, shades & saturation

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

Lighter +40%#FF3A38

Lighter +30%#FF0705

Lighter +20%#D10200

Lighter +10%#9E0100

Darker −10%#380100

Darker −20%#050000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#6B0100

Less saturated −25%#5E0E0D

Channel breakdown

R107

Red107 (42%)

Green1 (0.4%)

Blue0 (0%)

Hue0.56°

Saturation (HSL)100%

Lightness20.98%

Dominant channelRed

Hex per channelR 6B · G 01 · B 00

Keep nerding

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#6B0100

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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