Recognised as Colour

#B3281A

#B3281A
Red
Dark
Nearest: Firebrick

#B3281A is a red with RGB values 179, 40, 26 and HSL 5°, 75%, 40%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B3281A#B3281A

HEX#B3281A

RGBrgb(179, 40, 26)

RGB (0–1)0.702, 0.1569, 0.102

RGB percentages70.2%, 15.7%, 10.2%

HSLhsl(5.5, 74.6%, 40.2%)

HSV / HSBhsv(5.5, 85.5%, 70.2%)

CMYK0%, 77.7%, 85.5%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,741,210

CSS custom property--colour: #B3281A;

Brightness & contrast

Relative luminance0.11176WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.49:1

Contrast with white6.49:1WCAG normal text: AA

Contrast with black3.24:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#4CD7E5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#544A16no red cones; affects about 1% of men; ΔE 58.6 from the original

Deuteranopia#766911no green cones; the most common form, about 1% of men; ΔE 59 from the original

Tritanopia#C60027no blue cones; rare, and affects men and women equally; ΔE 13.4 from the original

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

Contrast with white, large text6.49:1WCAG large text: AAA

Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Firebrick · ΔE 5.3 Dark red · ΔE 12.3 Brown · ΔE 13.1 Maroon · ΔE 16.3 Crimson · ΔE 20.3 Tomato · ΔE 22.9

Nearest named CSS colourFirebrick (#B22222)ΔE 5.34, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1AA5B3

Analogous#B31A58, #B3751A

Triadic#1AB328, #281AB3

Split complementary#1AB375, #1A58B3

Tetradic#58B31A, #1AA5B3, #751AB3

Tints, shades & saturation

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

Lighter +40%#F2AEA7

Lighter +30%#EC857A

Lighter +20%#E55C4E

Lighter +10%#DF3321

Darker −10%#861E14

Darker −20%#5A140D

Darker −30%#2D0A07

Darker −40%#010000

More saturated +25%#CD1300

Less saturated −25%#993D34

Channel breakdown

R179

G40

B26

Red179 (70.2%)

Green40 (15.7%)

Blue26 (10.2%)

Hue5.49°

Saturation (HSL)74.63%

Lightness40.2%

Dominant channelRed

Hex per channelR B3 · G 28 · B 1A

Keep nerding

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

#B3281A

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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