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Recognised as Colour

#021DCB

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

#021DCB is a blue with RGB values 2, 29, 203 and HSL 232°, 98%, 40%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#021DCB#021DCB
HEX#021DCB
RGBrgb(2, 29, 203)
RGB (0–1)0.0078, 0.1137, 0.7961
RGB percentages0.8%, 11.4%, 79.6%
HSLhsl(231.9, 98%, 40.2%)
HSV / HSBhsv(231.9, 99%, 79.6%)
CMYK99%, 85.7%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer138,699
CSS custom property--colour: #021DCB;

Brightness & contrast

Relative luminance0.05203WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.29:1
Contrast with white10.29:1WCAG normal text: AAA
Contrast with black2.04:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#FDE234

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004AD0no red cones; affects about 1% of men; ΔE 28.5 from the original
Deuteranopia#0036C8no green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#005979no blue cones; rare, and affects men and women equally; ΔE 93.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.29:1WCAG large text: AAA
Contrast with black, large text2.04:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10.1Blue violet · ΔE 21.9Dark blue · ΔE 23.3Dark violet · ΔE 26.8Navy · ΔE 28.4Blue · ΔE 30
Nearest named CSS colourMedium blue (#0000CD)ΔE 10.08, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CBB002
Analogous#0282CB, #4B02CB
Triadic#CB021D, #1DCB02
Split complementary#CB4B02, #82CB02
Tetradic#CB0282, #CBB002, #02CB4B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9BA8FE
Lighter +30%#687DFE
Lighter +20%#3651FD
Lighter +10%#0325FD
Darker −10%#021698
Darker −20%#010F66
Darker −30%#010733
Darker −40%#000001
More saturated +25%#001CCD
Less saturated −25%#1C30B1

Channel breakdown

R2
G29
B203
Red2 (0.8%)
Green29 (11.4%)
Blue203 (79.6%)
Hue231.94°
Saturation (HSL)98.05%
Lightness40.2%
Dominant channelBlue
Hex per channelR 02 · G 1D · B CB

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