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Recognised as Colour

#BF0031

  • #BF0031
  • Red
  • Dark
  • Nearest: Crimson

#BF0031 is a red with RGB values 191, 0, 49 and HSL 345°, 100%, 37%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#BF0031#BF0031
HEX#BF0031
RGBrgb(191, 0, 49)
RGB (0–1)0.749, 0, 0.1922
RGB percentages74.9%, 0%, 19.2%
HSLhsl(344.6, 100%, 37.5%)
HSV / HSBhsv(344.6, 100%, 74.9%)
CMYK0%, 100%, 74.3%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,517,425
CSS custom property--colour: #BF0031;

Brightness & contrast

Relative luminance0.11298WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.44:1
Contrast with white6.44:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#40FFCE

Colour vision & accessibility

Protanopia#4C4731no red cones; affects about 1% of men; ΔE 70.1 from the original
Deuteranopia#776B2Ano green cones; the most common form, about 1% of men; ΔE 69.8 from the original
Tritanopia#D3001Cno blue cones; rare, and affects men and women equally; ΔE 18.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.44:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 9.33, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#00BF8E
Analogous#BF0091, #BF2F00
Triadic#31BF00, #0031BF
Split complementary#00BF2F, #0091BF
Tetradic#90BF00, #00BF8E, #2E00BF

Tints, shades & saturation

Lighter +40%#FF8CAA
Lighter +30%#FF5984
Lighter +20%#FF265E
Lighter +10%#F2003E
Darker −10%#8C0024
Darker −20%#590017
Darker −30%#26000A
Darker −40%#000000
More saturated +25%#BF0031
Less saturated −25%#A7183D

Channel breakdown

R191
G0
B49
Red191 (74.9%)
Green0 (0%)
Blue49 (19.2%)
Hue344.61°
Saturation (HSL)100%
Lightness37.45%
Dominant channelRed
Hex per channelR BF · G 00 · B 31

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Every value on this page was computed from “bf0031” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.