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Recognised as Colour

#21101E

  • #21101E
  • Magenta
  • Dark
  • Nearest: Black

#21101E is a magenta with RGB values 33, 16, 30 and HSL 311°, 35%, 10%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#21101E#21101E
HEX#21101E
RGBrgb(33, 16, 30)
RGB (0–1)0.1294, 0.0627, 0.1176
RGB percentages12.9%, 6.3%, 11.8%
HSLhsl(310.6, 34.7%, 9.6%)
HSV / HSBhsv(310.6, 51.5%, 12.9%)
CMYK0%, 51.5%, 9.1%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,166,814
CSS custom property--colour: #21101E;

Brightness & contrast

Relative luminance0.00788WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.14:1
Contrast with white18.14:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#DEEFE1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#10141Fno red cones; affects about 1% of men; ΔE 10.3 from the original
Deuteranopia#14171Dno green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#221115no blue cones; rare, and affects men and women equally; ΔE 7.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.14:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 14.9Dark slate grey · ΔE 33.7Dim grey · ΔE 39.5Dark slateblue · ΔE 45.4Slate grey · ΔE 47.9Gray · ΔE 48.3
Nearest named CSS colourBlack (#000000)ΔE 14.94, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#102113
Analogous#1C1021, #211016
Triadic#1E2110, #101E21
Split complementary#152110, #10211C
Tetradic#211C10, #102113, #101521

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AA539B
Lighter +30%#88427C
Lighter +20%#66315C
Lighter +10%#43213D
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#270A22
Less saturated −25%#1B161A

Channel breakdown

R33
G16
B30
Red33 (12.9%)
Green16 (6.3%)
Blue30 (11.8%)
Hue310.59°
Saturation (HSL)34.69%
Lightness9.61%
Dominant channelRed
Hex per channelR 21 · G 10 · B 1E

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Every value on this page was computed from “21101e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.