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Colour

#31B383

  • #31B383
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#31B383 is a cyan with RGB values 49, 179, 131 and HSL 158°, 57%, 45%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#31B383#31B383
HEX#31B383
RGBrgb(49, 179, 131)
RGB (0–1)0.1922, 0.702, 0.5137
RGB percentages19.2%, 70.2%, 51.4%
HSLhsl(157.8, 57%, 44.7%)
HSV / HSBhsv(157.8, 72.6%, 70.2%)
CMYK72.6%, 0%, 26.8%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,257,219
CSS custom property--colour: #31B383;

Brightness & contrast

Relative luminance0.34532WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.91:1
Contrast with white2.66:1WCAG normal text: Fail
Contrast with black7.91:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#CE4C7C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B0A680no red cones; affects about 1% of men; ΔE 44.3 from the original
Deuteranopia#9F9A86no green cones; the most common form, about 1% of men; ΔE 44.7 from the original
Tritanopia#00B3A6no blue cones; rare, and affects men and women equally; ΔE 19.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.66:1WCAG large text: Fail
Contrast with black, large text7.91:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 9.8Medium aquamarine · ΔE 14.4Sea green · ΔE 16.2Light seagreen · ΔE 22.7Dark seagreen · ΔE 23.6Turquoise · ΔE 24.6
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 9.84, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B33161
Analogous#31B342, #31A2B3
Triadic#8331B3, #B38331
Split complementary#B331A2, #B34231
Tetradic#4231B3, #B33161, #A2B331

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2EEDE
Lighter +30%#9AE3C8
Lighter +20%#72D8B2
Lighter +10%#4ACD9D
Darker −10%#268B66
Darker −20%#1B6348
Darker −30%#103B2B
Darker −40%#05130E
More saturated +25%#14D08A
Less saturated −25%#4E967C

Channel breakdown

R49
G179
B131
Red49 (19.2%)
Green179 (70.2%)
Blue131 (51.4%)
Hue157.85°
Saturation (HSL)57.02%
Lightness44.71%
Dominant channelGreen
Hex per channelR 31 · G B3 · B 83

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Every value on this page was computed from “31b383” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.