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Colour

#40485B

  • #40485B
  • Blue
  • Dark
  • Nearest: Dark slate grey

#40485B is a blue with RGB values 64, 72, 91 and HSL 222°, 17%, 30%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#40485B#40485B
HEX#40485B
RGBrgb(64, 72, 91)
RGB (0–1)0.251, 0.2824, 0.3569
RGB percentages25.1%, 28.2%, 35.7%
HSLhsl(222.2, 17.4%, 30.4%)
HSV / HSBhsv(222.2, 29.7%, 35.7%)
CMYK29.7%, 20.9%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,212,827
CSS custom property--colour: #40485B;

Brightness & contrast

Relative luminance0.0648WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.15:1
Contrast with white9.15:1WCAG normal text: AAA
Contrast with black2.3:1WCAG normal text: Fail
Greyscale equivalent#484848
Inverted#BFB7A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#42495Cno red cones; affects about 1% of men; ΔE 0.6 from the original
Deuteranopia#40475Bno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#394C4Eno blue cones; rare, and affects men and women equally; ΔE 12.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.15:1WCAG large text: AAA
Contrast with black, large text2.3:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16Dim grey · ΔE 18.6Slate grey · ΔE 22.6Light slate grey · ΔE 25.7Gray · ΔE 26.1Steel blue · ΔE 30.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B5340
Analogous#40565B, #46405B
Triadic#5B4048, #485B40
Split complementary#5B4640, #565B40
Tetradic#5B4056, #5B5340, #405B46

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6AEC1
Lighter +30%#8893AC
Lighter +20%#6A7897
Lighter +10%#556079
Darker −10%#2B303D
Darker −20%#16191F
Darker −30%#010101
Darker −40%#000000
More saturated +25%#2D406E
Less saturated −25%#4E4E4E

Channel breakdown

R64
G72
B91
Red64 (25.1%)
Green72 (28.2%)
Blue91 (35.7%)
Hue222.22°
Saturation (HSL)17.42%
Lightness30.39%
Dominant channelBlue
Hex per channelR 40 · G 48 · B 5B

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Every value on this page was computed from “40485b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.