Recognised as Colour

#A91522

#A91522
Red
Dark
Nearest: Firebrick

#A91522 is a red with RGB values 169, 21, 34 and HSL 355°, 78%, 37%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A91522#A91522

HEX#A91522

RGBrgb(169, 21, 34)

RGB (0–1)0.6627, 0.0824, 0.1333

RGB percentages66.3%, 8.2%, 13.3%

HSLhsl(354.7, 77.9%, 37.3%)

HSV / HSBhsv(354.7, 87.6%, 66.3%)

CMYK0%, 87.6%, 79.9%, 33.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,080,994

CSS custom property--colour: #A91522;

Brightness & contrast

Relative luminance0.09087WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.45:1

Contrast with white7.45:1WCAG normal text: AAA

Contrast with black2.82:1WCAG normal text: Fail

Greyscale equivalent#353535

Inverted#56EADD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#484121no red cones; affects about 1% of men; ΔE 60.8 from the original

Deuteranopia#6C601Bno green cones; the most common form, about 1% of men; ΔE 60.5 from the original

Tritanopia#BB001Cno blue cones; rare, and affects men and women equally; ΔE 10.9 from the original

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

Contrast with white, large text7.45:1WCAG large text: AAA

Contrast with black, large text2.82:1WCAG large text: Fail

Named colours

Firebrick · ΔE 4.7 Brown · ΔE 7.7 Dark red · ΔE 12.2 Maroon · ΔE 14.1 Crimson · ΔE 18.1 Indian red · ΔE 24

Nearest named CSS colourFirebrick (#B22222)ΔE 4.71, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#15A99C

Analogous#A9156C, #A95215

Triadic#22A915, #1522A9

Split complementary#15A952, #156CA9

Tetradic#6CA915, #15A99C, #5215A9

Tints, shades & saturation

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

Lighter +40%#F298A0

Lighter +30%#ED6A76

Lighter +20%#E73D4C

Lighter +10%#D61B2B

Darker −10%#7C0F19

Darker −20%#4E0A10

Darker −30%#210407

Darker −40%#000000

More saturated +25%#BE0011

Less saturated −25%#912D36

Channel breakdown

R169

G21

B34

Red169 (66.3%)

Green21 (8.2%)

Blue34 (13.3%)

Hue354.73°

Saturation (HSL)77.89%

Lightness37.25%

Dominant channelRed

Hex per channelR A9 · G 15 · B 22

Keep nerding

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

#A91522

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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