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Colour

#004BB4

  • #004BB4
  • Blue
  • Dark
  • Nearest: Royal blue

#004BB4 is a blue with RGB values 0, 75, 180 and HSL 215°, 100%, 35%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#004BB4#004BB4
HEX#004BB4
RGBrgb(0, 75, 180)
RGB (0–1)0, 0.2941, 0.7059
RGB percentages0%, 29.4%, 70.6%
HSLhsl(215, 100%, 35.3%)
HSV / HSBhsv(215, 100%, 70.6%)
CMYK100%, 58.3%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,380
CSS custom property--colour: #004BB4;

Brightness & contrast

Relative luminance0.08327WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.88:1
Contrast with white7.88:1WCAG normal text: AAA
Contrast with black2.67:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#FFB44B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0059B8no red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#004AB2no green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#006678no blue cones; rare, and affects men and women equally; ΔE 60.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.88:1WCAG large text: AAA
Contrast with black, large text2.67:1WCAG large text: Fail

Named colours

Royal blue · ΔE 14.2Slate blue · ΔE 16.8Dark slateblue · ΔE 19.2Midnight blue · ΔE 23.4Rebecca purple · ΔE 23.8Medium slateblue · ΔE 25.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 14.2, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B46900
Analogous#00A5B4, #0F00B4
Triadic#B4004B, #4BB400
Split complementary#B40F00, #A5B400
Tetradic#B400A5, #B46900, #00B40F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#81B5FF
Lighter +30%#4E98FF
Lighter +20%#1B7AFF
Lighter +10%#0060E7
Darker −10%#003681
Darker −20%#00204E
Darker −30%#000B1B
Darker −40%#000000
More saturated +25%#004BB4
Less saturated −25%#174F9E

Channel breakdown

R0
G75
B180
Red0 (0%)
Green75 (29.4%)
Blue180 (70.6%)
Hue215°
Saturation (HSL)100%
Lightness35.29%
Dominant channelBlue
Hex per channelR 00 · G 4B · B B4

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Every value on this page was computed from “004bb4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.