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Colour

#21194D

  • #21194D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#21194D is a blue with RGB values 33, 25, 77 and HSL 249°, 51%, 20%. It is a dark colour, so white text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#21194D#21194D
HEX#21194D
RGBrgb(33, 25, 77)
RGB (0–1)0.1294, 0.098, 0.302
RGB percentages12.9%, 9.8%, 30.2%
HSLhsl(249.2, 51%, 20%)
HSV / HSBhsv(249.2, 67.5%, 30.2%)
CMYK57.1%, 67.5%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,169,165
CSS custom property--colour: #21194D;

Brightness & contrast

Relative luminance0.01554WCAG 2.x, 0 is black and 1 is white
Perceived brightness37 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.02:1
Contrast with white16.02:1WCAG normal text: AAA
Contrast with black1.31:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#DEE6B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00234Fno red cones; affects about 1% of men; ΔE 12.1 from the original
Deuteranopia#00204Cno green cones; the most common form, about 1% of men; ΔE 11.2 from the original
Tritanopia#102530no blue cones; rare, and affects men and women equally; ΔE 32.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.02:1WCAG large text: AAA
Contrast with black, large text1.31:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.9Midnight blue · ΔE 22.1Rebecca purple · ΔE 34.3Black · ΔE 39.1Indigo · ΔE 39.4Purple · ΔE 42.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#454D19
Analogous#192B4D, #3B194D
Triadic#4D2119, #194D21
Split complementary#4D3B19, #2B4D19
Tetradic#4D192B, #454D19, #194D3B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7565CD
Lighter +30%#533EC1
Lighter +20%#42329A
Lighter +10%#322574
Darker −10%#110D27
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#180C5A
Less saturated −25%#2A2640

Channel breakdown

R33
G25
B77
Red33 (12.9%)
Green25 (9.8%)
Blue77 (30.2%)
Hue249.23°
Saturation (HSL)50.98%
Lightness20%
Dominant channelBlue
Hex per channelR 21 · G 19 · B 4D

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Every value on this page was computed from “21194d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.