Recognised as Colour

#891B30

#891B30
Red
Dark
Nearest: Brown

#891B30 is a red with RGB values 137, 27, 48 and HSL 349°, 67%, 32%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#891B30#891B30

HEX#891B30

RGBrgb(137, 27, 48)

RGB (0–1)0.5373, 0.1059, 0.1882

RGB percentages53.7%, 10.6%, 18.8%

HSLhsl(348.5, 67.1%, 32.2%)

HSV / HSBhsv(348.5, 80.3%, 53.7%)

CMYK0%, 80.3%, 65%, 46.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,985,392

CSS custom property--colour: #891B30;

Brightness & contrast

Relative luminance0.06316WCAG 2.x, 0 is black and 1 is white

Perceived brightness79.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.28:1

Contrast with white9.28:1WCAG normal text: AAA

Contrast with black2.26:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#76E4CF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3B3830no red cones; affects about 1% of men; ΔE 48.4 from the original

Deuteranopia#574F2Dno green cones; the most common form, about 1% of men; ΔE 48.8 from the original

Tritanopia#970024no blue cones; rare, and affects men and women equally; ΔE 13 from the original

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

Contrast with white, large text9.28:1WCAG large text: AAA

Contrast with black, large text2.26:1WCAG large text: Fail

Named colours

Brown · ΔE 16.2 Maroon · ΔE 22.1 Indian red · ΔE 23.9 Firebrick · ΔE 24.9 Dark red · ΔE 25.3 Sienna · ΔE 29

Nearest named CSS colourBrown (#A52A2A)ΔE 16.17, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1B8974

Analogous#891B67, #893D1B

Triadic#30891B, #1B3089

Split complementary#1B893D, #1B6789

Tetradic#67891B, #1B8974, #3D1B89

Tints, shades & saturation

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

Lighter +40%#E8889B

Lighter +30%#DF5E76

Lighter +20%#D73352

Lighter +10%#B4233F

Darker −10%#5E1321

Darker −20%#340A12

Darker −30%#090203

Darker −40%#000000

More saturated +25%#9E0623

Less saturated −25%#742F3D

Channel breakdown

R137

G27

B48

Red137 (53.7%)

Green27 (10.6%)

Blue48 (18.8%)

Hue348.55°

Saturation (HSL)67.07%

Lightness32.16%

Dominant channelRed

Hex per channelR 89 · G 1B · B 30

Keep nerding

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

#891B30

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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