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Recognised as Colour

#31645D

  • #31645D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#31645D is a cyan with RGB values 49, 100, 93 and HSL 172°, 34%, 29%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31645D#31645D
HEX#31645D
RGBrgb(49, 100, 93)
RGB (0–1)0.1922, 0.3922, 0.3647
RGB percentages19.2%, 39.2%, 36.5%
HSLhsl(171.8, 34.2%, 29.2%)
HSV / HSBhsv(171.8, 51%, 39.2%)
CMYK51%, 0%, 7%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,236,957
CSS custom property--colour: #31645D;

Brightness & contrast

Relative luminance0.10558WCAG 2.x, 0 is black and 1 is white
Perceived brightness87 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.75:1
Contrast with white6.75:1WCAG normal text: AA
Contrast with black3.11:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#CE9BA2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#605F5Dno red cones; affects about 1% of men; ΔE 19.3 from the original
Deuteranopia#57595Eno green cones; the most common form, about 1% of men; ΔE 19.5 from the original
Tritanopia#186662no blue cones; rare, and affects men and women equally; ΔE 5.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.75:1WCAG large text: AAA
Contrast with black, large text3.11:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 10.8Teal · ΔE 15.4Dark cyan · ΔE 19.3Dim grey · ΔE 19.9Cadetblue · ΔE 23.2Slate grey · ΔE 23.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.8, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#643138
Analogous#316443, #315264
Triadic#5D3164, #645D31
Split complementary#643152, #644431
Tetradic#433164, #643138, #526431

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#96CBC4
Lighter +30%#73BBB1
Lighter +20%#53A89D
Lighter +10%#42867D
Darker −10%#20423D
Darker −20%#0F201D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E776B
Less saturated −25%#44514F

Channel breakdown

R49
G100
B93
Red49 (19.2%)
Green100 (39.2%)
Blue93 (36.5%)
Hue171.76°
Saturation (HSL)34.23%
Lightness29.22%
Dominant channelGreen
Hex per channelR 31 · G 64 · B 5D

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Every value on this page was computed from “31645d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.