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Recognised as Colour

#31575E

  • #31575E
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#31575E is a cyan with RGB values 49, 87, 94 and HSL 189°, 31%, 28%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#31575E#31575E
HEX#31575E
RGBrgb(49, 87, 94)
RGB (0–1)0.1922, 0.3412, 0.3686
RGB percentages19.2%, 34.1%, 36.9%
HSLhsl(189.3, 31.5%, 28%)
HSV / HSBhsv(189.3, 47.9%, 36.9%)
CMYK47.9%, 7.4%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,233,630
CSS custom property--colour: #31575E;

Brightness & contrast

Relative luminance0.08278WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.91:1
Contrast with white7.91:1WCAG normal text: AAA
Contrast with black2.66:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#CEA8A1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#51545Eno red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#4A4F5Eno green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#1B5A59no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.91:1WCAG large text: AAA
Contrast with black, large text2.66:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5.6Dim grey · ΔE 17.2Slate grey · ΔE 20.6Teal · ΔE 22.2Light slate grey · ΔE 23.4Gray · ΔE 23.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 5.63, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E3831
Analogous#315E4F, #31405E
Triadic#5E3157, #575E31
Split complementary#5E3140, #5E4F31
Tetradic#4F315E, #5E3831, #405E31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#94BFC7
Lighter +30%#72ABB6
Lighter +20%#5495A1
Lighter +10%#427680
Darker −10%#20383C
Darker −20%#0E191B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F6370
Less saturated −25%#434B4C

Channel breakdown

R49
G87
B94
Red49 (19.2%)
Green87 (34.1%)
Blue94 (36.9%)
Hue189.33°
Saturation (HSL)31.47%
Lightness28.04%
Dominant channelBlue
Hex per channelR 31 · G 57 · B 5E

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Every value on this page was computed from “31575e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.