Colour

#A41733

#A41733
Red
Dark
Nearest: Brown

#A41733 is a red with RGB values 164, 23, 51 and HSL 348°, 75%, 37%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A41733#A41733

HEX#A41733

RGBrgb(164, 23, 51)

RGB (0–1)0.6431, 0.0902, 0.2

RGB percentages64.3%, 9%, 20%

HSLhsl(348.1, 75.4%, 36.7%)

HSV / HSBhsv(348.1, 86%, 64.3%)

CMYK0%, 86%, 68.9%, 35.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,753,843

CSS custom property--colour: #A41733;

Brightness & contrast

Relative luminance0.08744WCAG 2.x, 0 is black and 1 is white

Perceived brightness93 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.64:1

Contrast with white7.64:1WCAG normal text: AAA

Contrast with black2.75:1WCAG normal text: Fail

Greyscale equivalent#373737

Inverted#5BE8CC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#454133no red cones; affects about 1% of men; ΔE 58.5 from the original

Deuteranopia#675E2Fno green cones; the most common form, about 1% of men; ΔE 59.1 from the original

Tritanopia#B50024no blue cones; rare, and affects men and women equally; ΔE 14.9 from the original

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

Contrast with white, large text7.64:1WCAG large text: AAA

Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Brown · ΔE 10.1 Firebrick · ΔE 15.6 Maroon · ΔE 19.9 Dark red · ΔE 20.7 Indian red · ΔE 20.8 Crimson · ΔE 22.3

Nearest named CSS colourBrown (#A52A2A)ΔE 10.06, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17A488

Analogous#A4177A, #A44217

Triadic#33A417, #1733A4

Split complementary#17A442, #177AA4

Tetradic#7AA417, #17A488, #4117A4

Tints, shades & saturation

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

Lighter +40%#F097A8

Lighter +30%#EA6A83

Lighter +20%#E43D5E

Lighter +10%#D11D41

Darker −10%#771125

Darker −20%#4B0A17

Darker −30%#1E0409

Darker −40%#000000

More saturated +25%#BB0025

Less saturated −25%#8D2E41

Channel breakdown

R164

G23

B51

Red164 (64.3%)

Green23 (9%)

Blue51 (20%)

Hue348.09°

Saturation (HSL)75.4%

Lightness36.67%

Dominant channelRed

Hex per channelR A4 · G 17 · B 33

Keep nerding

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

#A41733

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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