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Recognised as Colour

#064BB8

  • #064BB8
  • Blue
  • Dark
  • Nearest: Royal blue

#064BB8 is a blue with RGB values 6, 75, 184 and HSL 217°, 94%, 37%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#064BB8#064BB8
HEX#064BB8
RGBrgb(6, 75, 184)
RGB (0–1)0.0235, 0.2941, 0.7216
RGB percentages2.4%, 29.4%, 72.2%
HSLhsl(216.7, 93.7%, 37.3%)
HSV / HSBhsv(216.7, 96.7%, 72.2%)
CMYK96.7%, 59.2%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer412,600
CSS custom property--colour: #064BB8;

Brightness & contrast

Relative luminance0.08532WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.76:1
Contrast with white7.76:1WCAG normal text: AAA
Contrast with black2.71:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#F9B447

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005ABCno red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#004BB6no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#00677Ano blue cones; rare, and affects men and women equally; ΔE 62.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.76:1WCAG large text: AAA
Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Royal blue · ΔE 13.1Slate blue · ΔE 15.6Dark slateblue · ΔE 20.8Rebecca purple · ΔE 23.4Medium slateblue · ΔE 23.4Midnight blue · ΔE 24
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B87306
Analogous#06A4B8, #1A06B8
Triadic#B8064B, #4BB806
Split complementary#B81A06, #A4B806
Tetradic#B806A4, #B87306, #06B81A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8FB9FB
Lighter +30%#5D9AFA
Lighter +20%#2C7BF8
Lighter +10%#085FE9
Darker −10%#043787
Darker −20%#032355
Darker −30%#010F24
Darker −40%#000000
More saturated +25%#004ABE
Less saturated −25%#1E50A0

Channel breakdown

R6
G75
B184
Red6 (2.4%)
Green75 (29.4%)
Blue184 (72.2%)
Hue216.74°
Saturation (HSL)93.68%
Lightness37.25%
Dominant channelBlue
Hex per channelR 06 · G 4B · B B8

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Every value on this page was computed from “064bb8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.