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Recognised as Colour

#2109DA

  • #2109DA
  • Blue
  • Dark
  • Nearest: Medium blue

#2109DA is a blue with RGB values 33, 9, 218 and HSL 247°, 92%, 45%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2109DA#2109DA
HEX#2109DA
RGBrgb(33, 9, 218)
RGB (0–1)0.1294, 0.0353, 0.8549
RGB percentages12.9%, 3.5%, 85.5%
HSLhsl(246.9, 92.1%, 44.5%)
HSV / HSBhsv(246.9, 95.9%, 85.5%)
CMYK84.9%, 95.9%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,165,210
CSS custom property--colour: #2109DA;

Brightness & contrast

Relative luminance0.05581WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.92:1
Contrast with white9.92:1WCAG normal text: AAA
Contrast with black2.12:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#DEF625

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DDFno red cones; affects about 1% of men; ΔE 35.1 from the original
Deuteranopia#0038D7no green cones; the most common form, about 1% of men; ΔE 23 from the original
Tritanopia#005B80no blue cones; rare, and affects men and women equally; ΔE 102.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.92:1WCAG large text: AAA
Contrast with black, large text2.12:1WCAG large text: Fail

Named colours

Medium blue · ΔE 4.3Blue · ΔE 18.1Blue violet · ΔE 23.3Dark violet · ΔE 26.7Dark blue · ΔE 33.8Dark orchid · ΔE 36.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 4.28, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C2DA09
Analogous#095ADA, #8909DA
Triadic#DA2109, #09DA21
Split complementary#DA8909, #5ADA09
Tetradic#DA095A, #C2DA09, #09DA89

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BBB3FC
Lighter +30%#9082FA
Lighter +20%#6451F8
Lighter +10%#3920F6
Darker −10%#1A07A9
Darker −20%#120578
Darker −30%#0B0347
Darker −40%#030116
More saturated +25%#1A00E3
Less saturated −25%#3725BE

Channel breakdown

R33
G9
B218
Red33 (12.9%)
Green9 (3.5%)
Blue218 (85.5%)
Hue246.89°
Saturation (HSL)92.07%
Lightness44.51%
Dominant channelBlue
Hex per channelR 21 · G 09 · B DA

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Every value on this page was computed from “2109da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.