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Recognised as Colour

#31CB8A

  • #31CB8A
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#31CB8A is a cyan with RGB values 49, 203, 138 and HSL 155°, 61%, 49%. It is a dark colour, so black text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#31CB8A#31CB8A
HEX#31CB8A
RGBrgb(49, 203, 138)
RGB (0–1)0.1922, 0.7961, 0.5412
RGB percentages19.2%, 79.6%, 54.1%
HSLhsl(154.7, 61.1%, 49.4%)
HSV / HSBhsv(154.7, 75.9%, 79.6%)
CMYK75.9%, 0%, 32%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,263,370
CSS custom property--colour: #31CB8A;

Brightness & contrast

Relative luminance0.452WCAG 2.x, 0 is black and 1 is white
Perceived brightness164.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.04:1
Contrast with white2.09:1WCAG normal text: Fail
Contrast with black10.04:1WCAG normal text: AAA
Greyscale equivalent#A6A6A6
Inverted#CE3475

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9BB86no red cones; affects about 1% of men; ΔE 51.8 from the original
Deuteranopia#B6AE8Eno green cones; the most common form, about 1% of men; ΔE 52 from the original
Tritanopia#00CABAno blue cones; rare, and affects men and women equally; ΔE 26.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.09:1WCAG large text: Fail
Contrast with black, large text10.04:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 10.2Medium aquamarine · ΔE 20.8Light green · ΔE 22Aquamarine · ΔE 24Medium spring green · ΔE 24.5Pale green · ΔE 25.3
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 10.19, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB3172
Analogous#31CB3D, #31BFCB
Triadic#8A31CB, #CB8A31
Split complementary#CB31BF, #CB3D31
Tetradic#3D31CB, #CB3172, #BFCB31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3F5E7
Lighter +30%#AAEBCF
Lighter +20%#81E1B8
Lighter +10%#58D7A1
Darker −10%#27A26E
Darker −20%#1D7952
Darker −30%#135036
Darker −40%#09271A
More saturated +25%#11EB8F
Less saturated −25%#51AC85

Channel breakdown

R49
G203
B138
Red49 (19.2%)
Green203 (79.6%)
Blue138 (54.1%)
Hue154.68°
Saturation (HSL)61.11%
Lightness49.41%
Dominant channelGreen
Hex per channelR 31 · G CB · B 8A

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Every value on this page was computed from “31cb8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.