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Recognised as Colour

#3A72CB

  • #3A72CB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3A72CB is a blue with RGB values 58, 114, 203 and HSL 217°, 58%, 51%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3A72CB#3A72CB
HEX#3A72CB
RGBrgb(58, 114, 203)
RGB (0–1)0.2275, 0.4471, 0.7961
RGB percentages22.7%, 44.7%, 79.6%
HSLhsl(216.8, 58.2%, 51.2%)
HSV / HSBhsv(216.8, 71.4%, 79.6%)
CMYK71.4%, 43.8%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,830,475
CSS custom property--colour: #3A72CB;

Brightness & contrast

Relative luminance0.17246WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.72:1
Contrast with white4.72:1WCAG normal text: AA
Contrast with black4.45:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#C58D34

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#467BCEno red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#2B6DC9no green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#008794no blue cones; rare, and affects men and women equally; ΔE 51.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.72:1WCAG large text: AAA
Contrast with black, large text4.45:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 13.8Dodgerblue · ΔE 16.1Royal blue · ΔE 20Dark slateblue · ΔE 24.7Steel blue · ΔE 25.3Slate blue · ΔE 25.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.75, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB933A
Analogous#3ABBCB, #4A3ACB
Triadic#CB3A72, #72CB3A
Split complementary#CB4B3A, #BACB3A
Tetradic#CB3ABB, #CB933A, #3ACB4B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBE6F6
Lighter +30%#B3C9EB
Lighter +20%#8BACE0
Lighter +10%#628FD6
Darker −10%#2C5BA6
Darker −20%#21457E
Darker −30%#172F55
Darker −40%#0C192D
More saturated +25%#1B6BEA
Less saturated −25%#5979AC

Channel breakdown

R58
G114
B203
Red58 (22.7%)
Green114 (44.7%)
Blue203 (79.6%)
Hue216.83°
Saturation (HSL)58.23%
Lightness51.18%
Dominant channelBlue
Hex per channelR 3A · G 72 · B CB

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Every value on this page was computed from “3a72cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.