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Recognised as Colour

#280B28

  • #280B28
  • Magenta
  • Dark
  • Nearest: Black

#280B28 is a magenta with RGB values 40, 11, 40 and HSL 300°, 57%, 10%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#280B28#280B28
HEX#280B28
RGBrgb(40, 11, 40)
RGB (0–1)0.1569, 0.0431, 0.1569
RGB percentages15.7%, 4.3%, 15.7%
HSLhsl(300, 56.9%, 10%)
HSV / HSBhsv(300, 72.5%, 15.7%)
CMYK0%, 72.5%, 0%, 84.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,624,296
CSS custom property--colour: #280B28;

Brightness & contrast

Relative luminance0.00844WCAG 2.x, 0 is black and 1 is white
Perceived brightness27.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.97:1
Contrast with white17.97:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#D7F4D7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#081429no red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#121827no green cones; the most common form, about 1% of men; ΔE 17.9 from the original
Tritanopia#290F18no blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.97:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 25.1Dark slateblue · ΔE 37.8Midnight blue · ΔE 39.4Dark slate grey · ΔE 40.7Dim grey · ΔE 43.9Rebecca purple · ΔE 48.3
Nearest named CSS colourBlack (#000000)ΔE 25.06, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0B280B
Analogous#1A0B28, #280B1A
Triadic#28280B, #0B2828
Split complementary#1A280B, #0B281A
Tetradic#281A0B, #0B280B, #0B1A28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C837C8
Lighter +30%#A02CA0
Lighter +20%#782178
Lighter +10%#501650
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2E052E
Less saturated −25%#221122

Channel breakdown

R40
G11
B40
Red40 (15.7%)
Green11 (4.3%)
Blue40 (15.7%)
Hue300°
Saturation (HSL)56.86%
Lightness10%
Dominant channelRed and Blue
Hex per channelR 28 · G 0B · B 28

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Every value on this page was computed from “280b28” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.