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Recognised as Colour

#31615A

  • #31615A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#31615A is a cyan with RGB values 49, 97, 90 and HSL 171°, 33%, 29%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31615A#31615A
HEX#31615A
RGBrgb(49, 97, 90)
RGB (0–1)0.1922, 0.3804, 0.3529
RGB percentages19.2%, 38%, 35.3%
HSLhsl(171.3, 32.9%, 28.6%)
HSV / HSBhsv(171.3, 49.5%, 38%)
CMYK49.5%, 0%, 7.2%, 62%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,236,186
CSS custom property--colour: #31615A;

Brightness & contrast

Relative luminance0.09941WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.03:1
Contrast with white7.03:1WCAG normal text: AAA
Contrast with black2.99:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#CE9EA5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D5C5Ano red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#55565Bno green cones; the most common form, about 1% of men; ΔE 19.1 from the original
Tritanopia#1B635Fno blue cones; rare, and affects men and women equally; ΔE 5.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.03:1WCAG large text: AAA
Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.6Teal · ΔE 16.7Dim grey · ΔE 19.5Dark cyan · ΔE 20.6Slate grey · ΔE 24Gray · ΔE 24.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.57, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#613138
Analogous#316142, #315061
Triadic#5A3161, #615A31
Split complementary#613150, #614231
Tetradic#423161, #613138, #506131

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#95C9C2
Lighter +30%#73B8AE
Lighter +20%#53A599
Lighter +10%#428379
Darker −10%#203F3B
Darker −20%#0F1D1B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F7367
Less saturated −25%#434F4D

Channel breakdown

R49
G97
B90
Red49 (19.2%)
Green97 (38%)
Blue90 (35.3%)
Hue171.25°
Saturation (HSL)32.88%
Lightness28.63%
Dominant channelGreen
Hex per channelR 31 · G 61 · B 5A

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Every value on this page was computed from “31615a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.