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Recognised as Colour

#021BD3

  • #021BD3
  • Blue
  • Dark
  • Nearest: Medium blue

#021BD3 is a blue with RGB values 2, 27, 211 and HSL 233°, 98%, 42%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#021BD3#021BD3
HEX#021BD3
RGBrgb(2, 27, 211)
RGB (0–1)0.0078, 0.1059, 0.8275
RGB percentages0.8%, 10.6%, 82.7%
HSLhsl(232.8, 98.1%, 41.8%)
HSV / HSBhsv(232.8, 99.1%, 82.7%)
CMYK99.1%, 87.2%, 0%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer138,195
CSS custom property--colour: #021BD3;

Brightness & contrast

Relative luminance0.055WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10:1
Contrast with white10:1WCAG normal text: AAA
Contrast with black2.1:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#FDE42C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DD8no red cones; affects about 1% of men; ΔE 30.9 from the original
Deuteranopia#0037D0no green cones; the most common form, about 1% of men; ΔE 17.8 from the original
Tritanopia#005C7Dno blue cones; rare, and affects men and women equally; ΔE 97.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10:1WCAG large text: AAA
Contrast with black, large text2.1:1WCAG large text: Fail

Named colours

Medium blue · ΔE 6.4Blue violet · ΔE 22Blue · ΔE 25.4Dark violet · ΔE 26.8Dark blue · ΔE 27.5Navy · ΔE 32.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 6.39, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D3BA02
Analogous#0283D3, #5202D3
Triadic#D3021B, #1BD302
Split complementary#D35202, #83D302
Tetradic#D30283, #D3BA02, #02D352

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3AEFE
Lighter +30%#7081FE
Lighter +20%#3E55FD
Lighter +10%#0B28FD
Darker −10%#0215A0
Darker −20%#010E6E
Darker −30%#01083B
Darker −40%#000109
More saturated +25%#0019D5
Less saturated −25%#1D2FB8

Channel breakdown

R2
G27
B211
Red2 (0.8%)
Green27 (10.6%)
Blue211 (82.7%)
Hue232.82°
Saturation (HSL)98.12%
Lightness41.76%
Dominant channelBlue
Hex per channelR 02 · G 1B · B D3

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Every value on this page was computed from “021bd3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.