Recognised as Colour

#8B1501

#8B1501
Red
Dark
Nearest: Dark red

#8B1501 is a red with RGB values 139, 21, 1 and HSL 9°, 99%, 27%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#8B1501#8B1501

HEX#8B1501

RGBrgb(139, 21, 1)

RGB (0–1)0.5451, 0.0824, 0.0039

RGB percentages54.5%, 8.2%, 0.4%

HSLhsl(8.7, 98.6%, 27.5%)

HSV / HSBhsv(8.7, 99.3%, 54.5%)

CMYK0%, 84.9%, 99.3%, 45.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,114,881

CSS custom property--colour: #8B1501;

Brightness & contrast

Relative luminance0.06027WCAG 2.x, 0 is black and 1 is white

Perceived brightness77.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.52:1

Contrast with white9.52:1WCAG normal text: AAA

Contrast with black2.21:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#74EAFE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3D3500no red cones; affects about 1% of men; ΔE 51.6 from the original

Deuteranopia#5A4F00no green cones; the most common form, about 1% of men; ΔE 50.8 from the original

Tritanopia#9A0013no blue cones; rare, and affects men and women equally; ΔE 9.8 from the original

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

Contrast with white, large text9.52:1WCAG large text: AAA

Contrast with black, large text2.21:1WCAG large text: Fail

Named colours

Dark red · ΔE 4.3 Maroon · ΔE 5.7 Firebrick · ΔE 13.8 Brown · ΔE 14.3 Saddle brown · ΔE 22.1 Sienna · ΔE 23.6

Nearest named CSS colourDark red (#8B0000)ΔE 4.27, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01778B

Analogous#8B0132, #8B5A01

Triadic#018B15, #15018B

Split complementary#018B5A, #01328B

Tetradic#328B01, #01778B, #5A018B

Tints, shades & saturation

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

Lighter +40%#FE725A

Lighter +30%#FD4728

Lighter +20%#F02402

Lighter +10%#BE1D01

Darker −10%#580D01

Darker −20%#260600

Darker −30%#000000

Darker −40%#000000

More saturated +25%#8C1400

Less saturated −25%#7A2112

Channel breakdown

R139

G21

Red139 (54.5%)

Green21 (8.2%)

Blue1 (0.4%)

Hue8.7°

Saturation (HSL)98.57%

Lightness27.45%

Dominant channelRed

Hex per channelR 8B · G 15 · B 01

Keep nerding

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

#8B1501

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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