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Recognised as Colour

#405F90

  • #405F90
  • Blue
  • Dark
  • Nearest: Steel blue

#405F90 is a blue with RGB values 64, 95, 144 and HSL 217°, 38%, 41%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#405F90#405F90
HEX#405F90
RGBrgb(64, 95, 144)
RGB (0–1)0.251, 0.3725, 0.5647
RGB percentages25.1%, 37.3%, 56.5%
HSLhsl(216.8, 38.5%, 40.8%)
HSV / HSBhsv(216.8, 55.6%, 56.5%)
CMYK55.6%, 34%, 0%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,218,768
CSS custom property--colour: #405F90;

Brightness & contrast

Relative luminance0.11288WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.45:1
Contrast with white6.45:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#BFA06F

Colour vision & accessibility

Protanopia#4B6392no red cones; affects about 1% of men; ΔE 2.8 from the original
Deuteranopia#425B8Fno green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#116A71no blue cones; rare, and affects men and women equally; ΔE 32 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.45:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Nearest named CSS colourSteel blue (#4682B4)ΔE 14.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#907140
Analogous#408790, #494090
Triadic#90405F, #5F9040
Split complementary#904940, #879040
Tetradic#904087, #907140, #409049

Tints, shades & saturation

Lighter +40%#BBCAE1
Lighter +30%#98AED1
Lighter +20%#7592C1
Lighter +10%#5177B2
Darker −10%#30486D
Darker −20%#213049
Darker −30%#111926
Darker −40%#010203
More saturated +25%#2659AA
Less saturated −25%#5A6576

Channel breakdown

R64
G95
B144
Red64 (25.1%)
Green95 (37.3%)
Blue144 (56.5%)
Hue216.75°
Saturation (HSL)38.46%
Lightness40.78%
Dominant channelBlue
Hex per channelR 40 · G 5F · B 90

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Every value on this page was computed from “405f90” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.