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Colour

#40879B

  • #40879B
  • Cyan
  • Dark
  • Nearest: Cadetblue

#40879B is a cyan with RGB values 64, 135, 155 and HSL 193°, 42%, 43%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Cadetblue.

Colour values

#40879B#40879B
HEX#40879B
RGBrgb(64, 135, 155)
RGB (0–1)0.251, 0.5294, 0.6078
RGB percentages25.1%, 52.9%, 60.8%
HSLhsl(193.2, 41.6%, 42.9%)
HSV / HSBhsv(193.2, 58.7%, 60.8%)
CMYK58.7%, 12.9%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,229,019
CSS custom property--colour: #40879B;

Brightness & contrast

Relative luminance0.20784WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.16:1
Contrast with white4.07:1WCAG normal text: Fail
Contrast with black5.16:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#BF7864

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7A849Cno red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#6D799Bno green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#008E8Dno blue cones; rare, and affects men and women equally; ΔE 17.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.07:1WCAG large text: AA
Contrast with black, large text5.16:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 13.5Slate grey · ΔE 15.6Light slate grey · ΔE 15.6Teal · ΔE 16.1Dark cyan · ΔE 16.7Steel blue · ΔE 19.1
Nearest named CSS colourCadetblue (#5F9EA0)ΔE 13.53, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B5440
Analogous#409B82, #405A9B
Triadic#9B4087, #879B40
Split complementary#9B405A, #9B8240
Tetradic#82409B, #9B5440, #5A9B40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1DEE6
Lighter +30%#9DCAD7
Lighter +20%#79B7C8
Lighter +10%#55A3B9
Darker −10%#316877
Darker −20%#224853
Darker −30%#13292F
Darker −40%#04090B
More saturated +25%#2596B6
Less saturated −25%#5B7880

Channel breakdown

R64
G135
B155
Red64 (25.1%)
Green135 (52.9%)
Blue155 (60.8%)
Hue193.19°
Saturation (HSL)41.55%
Lightness42.94%
Dominant channelBlue
Hex per channelR 40 · G 87 · B 9B

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Every value on this page was computed from “40879b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.