Colour

#9B1603

#9B1603
Red
Dark
Nearest: Dark red

#9B1603 is a red with RGB values 155, 22, 3 and HSL 8°, 96%, 31%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#9B1603#9B1603

HEX#9B1603

RGBrgb(155, 22, 3)

RGB (0–1)0.6078, 0.0863, 0.0118

RGB percentages60.8%, 8.6%, 1.2%

HSLhsl(7.5, 96.2%, 31%)

HSV / HSBhsv(7.5, 98.1%, 60.8%)

CMYK0%, 85.8%, 98.1%, 39.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,163,715

CSS custom property--colour: #9B1603;

Brightness & contrast

Relative luminance0.07549WCAG 2.x, 0 is black and 1 is white

Perceived brightness86.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.37:1

Contrast with white8.37:1WCAG normal text: AAA

Contrast with black2.51:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#64E9FC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443B00no red cones; affects about 1% of men; ΔE 56.2 from the original

Deuteranopia#645800no green cones; the most common form, about 1% of men; ΔE 55.7 from the original

Tritanopia#AC0015no blue cones; rare, and affects men and women equally; ΔE 9.7 from the original

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

Contrast with white, large text8.37:1WCAG large text: AAA

Contrast with black, large text2.51:1WCAG large text: Fail

Named colours

Dark red · ΔE 6.4 Firebrick · ΔE 10.7 Maroon · ΔE 11 Brown · ΔE 15.5 Saddle brown · ΔE 25.9 Sienna · ΔE 26.6

Nearest named CSS colourDark red (#8B0000)ΔE 6.38, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03889B

Analogous#9B033C, #9B6203

Triadic#039B16, #16039B

Split complementary#039B62, #033C9B

Tetradic#3C9B03, #03889B, #62039B

Tints, shades & saturation

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

Lighter +40%#FC806E

Lighter +30%#FB543C

Lighter +20%#FA280A

Lighter +10%#CD1D04

Darker −10%#690F02

Darker −20%#370801

Darker −30%#050100

Darker −40%#000000

More saturated +25%#9E1400

Less saturated −25%#872517

Channel breakdown

R155

G22

Red155 (60.8%)

Green22 (8.6%)

Blue3 (1.2%)

Hue7.5°

Saturation (HSL)96.2%

Lightness30.98%

Dominant channelRed

Hex per channelR 9B · G 16 · B 03

Keep nerding

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#9B1603

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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