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Recognised as Colour

#31505E

  • #31505E
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#31505E is a cyan with RGB values 49, 80, 94 and HSL 199°, 31%, 28%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31505E#31505E
HEX#31505E
RGBrgb(49, 80, 94)
RGB (0–1)0.1922, 0.3137, 0.3686
RGB percentages19.2%, 31.4%, 36.9%
HSLhsl(198.7, 31.5%, 28%)
HSV / HSBhsv(198.7, 47.9%, 36.9%)
CMYK47.9%, 14.9%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,231,838
CSS custom property--colour: #31505E;

Brightness & contrast

Relative luminance0.07198WCAG 2.x, 0 is black and 1 is white
Perceived brightness74 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.61:1
Contrast with white8.61:1WCAG normal text: AAA
Contrast with black2.44:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#CEAFA1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#494F5Fno red cones; affects about 1% of men; ΔE 9 from the original
Deuteranopia#424A5Eno green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#1D5454no blue cones; rare, and affects men and women equally; ΔE 12.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.61:1WCAG large text: AAA
Contrast with black, large text2.44:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.3Dim grey · ΔE 18.4Slate grey · ΔE 21.2Light slate grey · ΔE 24.2Gray · ΔE 25.4Teal · ΔE 27.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.27, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E3F31
Analogous#315E56, #31395E
Triadic#5E3150, #505E31
Split complementary#5E3139, #5E5631
Tetradic#56315E, #5E3F31, #395E31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#94B7C7
Lighter +30%#72A1B6
Lighter +20%#5489A1
Lighter +10%#426D80
Darker −10%#20333C
Darker −20%#0E171B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F5770
Less saturated −25%#43494C

Channel breakdown

R49
G80
B94
Red49 (19.2%)
Green80 (31.4%)
Blue94 (36.9%)
Hue198.67°
Saturation (HSL)31.47%
Lightness28.04%
Dominant channelBlue
Hex per channelR 31 · G 50 · B 5E

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Every value on this page was computed from “31505e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.