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Recognised as Colour

#212FDD

  • #212FDD
  • Blue
  • Dark
  • Nearest: Medium blue

#212FDD is a blue with RGB values 33, 47, 221 and HSL 236°, 74%, 50%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#212FDD#212FDD
HEX#212FDD
RGBrgb(33, 47, 221)
RGB (0–1)0.1294, 0.1843, 0.8667
RGB percentages12.9%, 18.4%, 86.7%
HSLhsl(235.5, 74%, 49.8%)
HSV / HSBhsv(235.5, 85.1%, 86.7%)
CMYK85.1%, 78.7%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,174,941
CSS custom property--colour: #212FDD;

Brightness & contrast

Relative luminance0.07577WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.35:1
Contrast with white8.35:1WCAG normal text: AAA
Contrast with black2.52:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#DED022

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057E2no red cones; affects about 1% of men; ΔE 27.1 from the original
Deuteranopia#0044DAno green cones; the most common form, about 1% of men; ΔE 16 from the original
Tritanopia#006686no blue cones; rare, and affects men and women equally; ΔE 93.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.35:1WCAG large text: AAA
Contrast with black, large text2.52:1WCAG large text: Fail

Named colours

Medium blue · ΔE 13.9Blue violet · ΔE 20.2Dark violet · ΔE 26.6Dark blue · ΔE 26.8Dark orchid · ΔE 30.2Blue · ΔE 30.5
Nearest named CSS colourMedium blue (#0000CD)ΔE 13.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDCF21
Analogous#218DDD, #7121DD
Triadic#DD212F, #2FDD21
Split complementary#DD7121, #8DDD21
Tetradic#DD218D, #DDCF21, #21DD71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2D5F8
Lighter +30%#A5ABF2
Lighter +20%#7981EB
Lighter +10%#4D58E4
Darker −10%#1A26B1
Darker −20%#141C84
Darker −30%#0D1358
Darker −40%#06092C
More saturated +25%#0114FD
Less saturated −25%#414ABD

Channel breakdown

R33
G47
B221
Red33 (12.9%)
Green47 (18.4%)
Blue221 (86.7%)
Hue235.53°
Saturation (HSL)74.02%
Lightness49.8%
Dominant channelBlue
Hex per channelR 21 · G 2F · B DD

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Every value on this page was computed from “212fdd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.