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Recognised as Colour

#B3301A

  • #B3301A
  • Red
  • Dark
  • Nearest: Firebrick

#B3301A is a red with RGB values 179, 48, 26 and HSL 9°, 75%, 40%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B3301A#B3301A
HEX#B3301A
RGBrgb(179, 48, 26)
RGB (0–1)0.702, 0.1882, 0.102
RGB percentages70.2%, 18.8%, 10.2%
HSLhsl(8.6, 74.6%, 40.2%)
HSV / HSBhsv(8.6, 85.5%, 70.2%)
CMYK0%, 73.2%, 85.5%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,743,258
CSS custom property--colour: #B3301A;

Brightness & contrast

Relative luminance0.11772WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.26:1
Contrast with white6.26:1WCAG normal text: AA
Contrast with black3.35:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#4CCFE5

Colour vision & accessibility

Protanopia#584E15no red cones; affects about 1% of men; ΔE 56.1 from the original
Deuteranopia#786B12no green cones; the most common form, about 1% of men; ΔE 56.4 from the original
Tritanopia#C6002Cno blue cones; rare, and affects men and women equally; ΔE 17.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.26:1WCAG large text: AAA
Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Nearest named CSS colourFirebrick (#B22222)ΔE 7.54, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1A9DB3
Analogous#B31A50, #B37D1A
Triadic#1AB330, #301AB3
Split complementary#1AB37D, #1A51B3
Tetradic#51B31A, #1A9DB3, #7D1AB3

Tints, shades & saturation

Lighter +40%#F2B2A7
Lighter +30%#EC8B7A
Lighter +20%#E5644E
Lighter +10%#DF3C21
Darker −10%#862414
Darker −20%#5A180D
Darker −30%#2D0C07
Darker −40%#010000
More saturated +25%#CD1E00
Less saturated −25%#994234

Channel breakdown

R179
G48
B26
Red179 (70.2%)
Green48 (18.8%)
Blue26 (10.2%)
Hue8.63°
Saturation (HSL)74.63%
Lightness40.2%
Dominant channelRed
Hex per channelR B3 · G 30 · B 1A

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Every value on this page was computed from “b3301a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.