Nerdulator> put something in

Recognised as Colour

#045189

  • #045189
  • Blue
  • Dark
  • Nearest: Steel blue

#045189 is a blue with RGB values 4, 81, 137 and HSL 205°, 94%, 28%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#045189#045189
HEX#045189
RGBrgb(4, 81, 137)
RGB (0–1)0.0157, 0.3176, 0.5373
RGB percentages1.6%, 31.8%, 53.7%
HSLhsl(205.3, 94.3%, 27.6%)
HSV / HSBhsv(205.3, 97.1%, 53.7%)
CMYK97.1%, 40.9%, 0%, 46.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer283,017
CSS custom property--colour: #045189;

Brightness & contrast

Relative luminance0.07717WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.26:1
Contrast with white8.26:1WCAG normal text: AAA
Contrast with black2.54:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#FBAE76

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#35548Bno red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#204988no green cones; the most common form, about 1% of men; ΔE 8.1 from the original
Tritanopia#005F66no blue cones; rare, and affects men and women equally; ΔE 34.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.26:1WCAG large text: AAA
Contrast with black, large text2.54:1WCAG large text: Fail

Named colours

Steel blue · ΔE 20.5Dark slateblue · ΔE 25.1Cornflower blue · ΔE 32Slate grey · ΔE 33Light slate grey · ΔE 34.5Dark slate grey · ΔE 35.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.48, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#893C04
Analogous#04897F, #040E89
Triadic#890451, #518904
Split complementary#89040E, #897F04
Tetradic#7F0489, #893C04, #0E8904

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5FB9FA
Lighter +30%#2DA3F9
Lighter +20%#078CEC
Lighter +10%#056EBB
Darker −10%#033457
Darker −20%#011626
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00528D
Less saturated −25%#164E77

Channel breakdown

R4
G81
B137
Red4 (1.6%)
Green81 (31.8%)
Blue137 (53.7%)
Hue205.26°
Saturation (HSL)94.33%
Lightness27.65%
Dominant channelBlue
Hex per channelR 04 · G 51 · B 89

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “hex 045189” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.