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Colour

#4042BE

  • #4042BE
  • Blue
  • Dark
  • Nearest: Slate blue

#4042BE is a blue with RGB values 64, 66, 190 and HSL 239°, 50%, 50%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#4042BE#4042BE
HEX#4042BE
RGBrgb(64, 66, 190)
RGB (0–1)0.251, 0.2588, 0.7451
RGB percentages25.1%, 25.9%, 74.5%
HSLhsl(239, 49.6%, 49.8%)
HSV / HSBhsv(239, 66.3%, 74.5%)
CMYK66.3%, 65.3%, 0%, 25.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,211,390
CSS custom property--colour: #4042BE;

Brightness & contrast

Relative luminance0.08704WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.66:1
Contrast with white7.66:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#BFBD41

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0059C2no red cones; affects about 1% of men; ΔE 19.6 from the original
Deuteranopia#004EBCno green cones; the most common form, about 1% of men; ΔE 13.9 from the original
Tritanopia#00627Ano blue cones; rare, and affects men and women equally; ΔE 70 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.66:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Slate blue · ΔE 12.7Medium slateblue · ΔE 17Royal blue · ΔE 17.3Rebecca purple · ΔE 18.9Indigo · ΔE 23.4Dark blue · ΔE 24.2
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 12.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BEBC40
Analogous#4081BE, #7D40BE
Triadic#BE4042, #42BE40
Split complementary#BE7D40, #81BE40
Tetradic#BE4081, #BEBC40, #40BE7D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8D9F2
Lighter +30%#B2B3E5
Lighter +20%#8C8DD8
Lighter +10%#6667CB
Darker −10%#333598
Darker −20%#262772
Darker −30%#191A4C
Darker −40%#0D0D25
More saturated +25%#2023DE
Less saturated −25%#60619E

Channel breakdown

R64
G66
B190
Red64 (25.1%)
Green66 (25.9%)
Blue190 (74.5%)
Hue239.05°
Saturation (HSL)49.61%
Lightness49.8%
Dominant channelBlue
Hex per channelR 40 · G 42 · B BE

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Every value on this page was computed from “4042be” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.