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Recognised as Colour

#21021C

  • #21021C
  • Magenta
  • Dark
  • Nearest: Black

#21021C is a magenta with RGB values 33, 2, 28 and HSL 310°, 89%, 7%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#21021C#21021C
HEX#21021C
RGBrgb(33, 2, 28)
RGB (0–1)0.1294, 0.0078, 0.1098
RGB percentages12.9%, 0.8%, 11%
HSLhsl(309.7, 88.6%, 6.9%)
HSV / HSBhsv(309.7, 93.9%, 12.9%)
CMYK0%, 93.9%, 15.2%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,163,228
CSS custom property--colour: #21021C;

Brightness & contrast

Relative luminance0.00451WCAG 2.x, 0 is black and 1 is white
Perceived brightness20.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.26:1
Contrast with white19.26:1WCAG normal text: AAA
Contrast with black1.09:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#DEFDE3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#020B1Dno red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#0B101Bno green cones; the most common form, about 1% of men; ΔE 16.6 from the original
Tritanopia#23040Dno blue cones; rare, and affects men and women equally; ΔE 10.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.26:1WCAG large text: AAA
Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 20.3Dark slate grey · ΔE 40.4Dark slateblue · ΔE 43.3Midnight blue · ΔE 44.4Dim grey · ΔE 45Slate grey · ΔE 52.6
Nearest named CSS colourBlack (#000000)ΔE 20.26, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#022107
Analogous#170221, #21020C
Triadic#1C2102, #021C21
Split complementary#0C2102, #022117
Tetradic#211702, #022107, #020C21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E10EBF
Lighter +30%#B10B96
Lighter +20%#81086E
Lighter +10%#510545
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#23001D
Less saturated −25%#1D0619

Channel breakdown

R33
G2
B28
Red33 (12.9%)
Green2 (0.8%)
Blue28 (11%)
Hue309.68°
Saturation (HSL)88.57%
Lightness6.86%
Dominant channelRed
Hex per channelR 21 · G 02 · B 1C

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Every value on this page was computed from “21021c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.