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Colour

#33001B

  • #33001B
  • Magenta
  • Dark
  • Nearest: Black

#33001B is a magenta with RGB values 51, 0, 27 and HSL 328°, 100%, 10%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#33001B#33001B
HEX#33001B
RGBrgb(51, 0, 27)
RGB (0–1)0.2, 0, 0.1059
RGB percentages20%, 0%, 10.6%
HSLhsl(328.2, 100%, 10%)
HSV / HSBhsv(328.2, 100%, 20%)
CMYK0%, 100%, 47.1%, 80%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,342,363
CSS custom property--colour: #33001B;

Brightness & contrast

Relative luminance0.00783WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.16:1
Contrast with white18.16:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#0D0D0D
Inverted#CCFFE4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#090F1Cno red cones; affects about 1% of men; ΔE 27 from the original
Deuteranopia#19191Ano green cones; the most common form, about 1% of men; ΔE 27.6 from the original
Tritanopia#38000Bno blue cones; rare, and affects men and women equally; ΔE 11.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.16:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 28.8Dark slateblue · ΔE 45.3Dark slate grey · ΔE 46.2Dim grey · ΔE 46.6Midnight blue · ΔE 47.1Maroon · ΔE 49.8
Nearest named CSS colourBlack (#000000)ΔE 28.8, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#003318
Analogous#320033, #330002
Triadic#1B3300, #001B33
Split complementary#013300, #003332
Tetradic#333200, #003318, #000233

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FF0087
Lighter +30%#CC006C
Lighter +20%#990051
Lighter +10%#660036
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#33001B
Less saturated −25%#2D061B

Channel breakdown

R51
G0
B27
Red51 (20%)
Green0 (0%)
Blue27 (10.6%)
Hue328.24°
Saturation (HSL)100%
Lightness10%
Dominant channelRed
Hex per channelR 33 · G 00 · B 1B

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Every value on this page was computed from “33001b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.