Colour

#A12917

#A12917
Red
Dark
Nearest: Firebrick

#A12917 is a red with RGB values 161, 41, 23 and HSL 8°, 75%, 36%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A12917#A12917

HEX#A12917

RGBrgb(161, 41, 23)

RGB (0–1)0.6314, 0.1608, 0.0902

RGB percentages63.1%, 16.1%, 9%

HSLhsl(7.8, 75%, 36.1%)

HSV / HSBhsv(7.8, 85.7%, 63.1%)

CMYK0%, 74.5%, 85.7%, 36.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,561,815

CSS custom property--colour: #A12917;

Brightness & contrast

Relative luminance0.09225WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.38:1

Contrast with white7.38:1WCAG normal text: AAA

Contrast with black2.84:1WCAG normal text: Fail

Greyscale equivalent#414141

Inverted#5ED6E8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4E4513no red cones; affects about 1% of men; ΔE 52.3 from the original

Deuteranopia#6B5F10no green cones; the most common form, about 1% of men; ΔE 52.4 from the original

Tritanopia#B20026no blue cones; rare, and affects men and women equally; ΔE 15.2 from the original

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

Contrast with white, large text7.38:1WCAG large text: AAA

Contrast with black, large text2.84:1WCAG large text: Fail

Named colours

Firebrick · ΔE 8.5 Dark red · ΔE 9 Brown · ΔE 9.4 Maroon · ΔE 11 Sienna · ΔE 20.6 Saddle brown · ΔE 21.7

Nearest named CSS colourFirebrick (#B22222)ΔE 8.53, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#178FA1

Analogous#A1174A, #A16E17

Triadic#17A129, #2917A1

Split complementary#17A16E, #174AA1

Tetradic#4AA117, #178FA1, #6E17A1

Tints, shades & saturation

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

Lighter +40%#F0A094

Lighter +30%#E97968

Lighter +20%#E3513B

Lighter +10%#CE341D

Darker −10%#741E11

Darker −20%#48120A

Darker −30%#1B0704

Darker −40%#000000

More saturated +25%#B81800

Less saturated −25%#8A3A2E

Channel breakdown

R161

G41

B23

Red161 (63.1%)

Green41 (16.1%)

Blue23 (9%)

Hue7.83°

Saturation (HSL)75%

Lightness36.08%

Dominant channelRed

Hex per channelR A1 · G 29 · B 17

Keep nerding

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

#A12917

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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