Recognised as Colour

#901F2B

#901F2B
Red
Dark
Nearest: Brown

#901F2B is a red with RGB values 144, 31, 43 and HSL 354°, 65%, 34%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#901F2B#901F2B

HEX#901F2B

RGBrgb(144, 31, 43)

RGB (0–1)0.5647, 0.1216, 0.1686

RGB percentages56.5%, 12.2%, 16.9%

HSLhsl(353.6, 64.6%, 34.3%)

HSV / HSBhsv(353.6, 78.5%, 56.5%)

CMYK0%, 78.5%, 70.1%, 43.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,445,163

CSS custom property--colour: #901F2B;

Brightness & contrast

Relative luminance0.07084WCAG 2.x, 0 is black and 1 is white

Perceived brightness83.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.69:1

Contrast with white8.69:1WCAG normal text: AAA

Contrast with black2.42:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#6FE0D4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#403C2Bno red cones; affects about 1% of men; ΔE 50.1 from the original

Deuteranopia#5D5427no green cones; the most common form, about 1% of men; ΔE 50.2 from the original

Tritanopia#9F0025no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text8.69:1WCAG large text: AAA

Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Brown · ΔE 10.3 Maroon · ΔE 17 Firebrick · ΔE 19.1 Dark red · ΔE 19.8 Indian red · ΔE 21.5 Sienna · ΔE 25

Nearest named CSS colourBrown (#A52A2A)ΔE 10.26, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F9084

Analogous#901F64, #904B1F

Triadic#2B901F, #1F2B90

Split complementary#1F904B, #1F6490

Tetradic#64901F, #1F9084, #4B1F90

Tints, shades & saturation

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

Lighter +40%#E8939C

Lighter +30%#DF6976

Lighter +20%#D63F4F

Lighter +10%#BA2838

Darker −10%#66161E

Darker −20%#3C0D12

Darker −30%#120405

Darker −40%#000000

More saturated +25%#A6091A

Less saturated −25%#7A353C

Channel breakdown

R144

G31

B43

Red144 (56.5%)

Green31 (12.2%)

Blue43 (16.9%)

Hue353.63°

Saturation (HSL)64.57%

Lightness34.31%

Dominant channelRed

Hex per channelR 90 · G 1F · B 2B

Keep nerding

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

#901F2B

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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