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Recognised as Colour

#0473B1

  • #0473B1
  • Blue
  • Dark
  • Nearest: Steel blue

#0473B1 is a blue with RGB values 4, 115, 177 and HSL 202°, 96%, 35%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#0473B1#0473B1
HEX#0473B1
RGBrgb(4, 115, 177)
RGB (0–1)0.0157, 0.451, 0.6941
RGB percentages1.6%, 45.1%, 69.4%
HSLhsl(201.5, 95.6%, 35.5%)
HSV / HSBhsv(201.5, 97.7%, 69.4%)
CMYK97.7%, 35%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer291,761
CSS custom property--colour: #0473B1;

Brightness & contrast

Relative luminance0.15462WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.13:1
Contrast with white5.13:1WCAG normal text: AA
Contrast with black4.09:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#FB8C4E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5575B4no red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#3E67B0no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#008289no blue cones; rare, and affects men and women equally; ΔE 36.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.13:1WCAG large text: AAA
Contrast with black, large text4.09:1WCAG large text: AA

Named colours

Steel blue · ΔE 10.2Cornflower blue · ΔE 22.2Dodgerblue · ΔE 29.8Deep skyblue · ΔE 29.9Slate grey · ΔE 30.5Light slate grey · ΔE 30.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B14204
Analogous#04B198, #041DB1
Triadic#B10473, #73B104
Split complementary#B1041D, #B19804
Tetradic#9804B1, #B14204, #1DB104

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#85D1FC
Lighter +30%#53BFFB
Lighter +20%#21ACFA
Lighter +10%#0593E3
Darker −10%#03537F
Darker −20%#02324D
Darker −30%#01121B
Darker −40%#000000
More saturated +25%#0074B5
Less saturated −25%#1B6D9A

Channel breakdown

R4
G115
B177
Red4 (1.6%)
Green115 (45.1%)
Blue177 (69.4%)
Hue201.5°
Saturation (HSL)95.58%
Lightness35.49%
Dominant channelBlue
Hex per channelR 04 · G 73 · B B1

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Every value on this page was computed from “0473b1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.