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Recognised as Colour

#138C56

  • #138C56
  • Cyan
  • Dark
  • Nearest: Sea green

#138C56 is a cyan with RGB values 19, 140, 86 and HSL 153°, 76%, 31%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#138C56#138C56
HEX#138C56
RGBrgb(19, 140, 86)
RGB (0–1)0.0745, 0.549, 0.3373
RGB percentages7.5%, 54.9%, 33.7%
HSLhsl(153.2, 76.1%, 31.2%)
HSV / HSBhsv(153.2, 86.4%, 54.9%)
CMYK86.4%, 0%, 38.6%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,281,110
CSS custom property--colour: #138C56;

Brightness & contrast

Relative luminance0.19566WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.91:1
Contrast with white4.27:1WCAG normal text: Fail
Contrast with black4.91:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#EC73A9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8B8052no red cones; affects about 1% of men; ΔE 41.9 from the original
Deuteranopia#7E765Ano green cones; the most common form, about 1% of men; ΔE 42.7 from the original
Tritanopia#008B7Eno blue cones; rare, and affects men and women equally; ΔE 24.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.27:1WCAG large text: AA
Contrast with black, large text4.91:1WCAG large text: AAA

Named colours

Sea green · ΔE 4.5Medium seagreen · ΔE 15Forest green · ΔE 25.3Dark green · ΔE 26.4Medium aquamarine · ΔE 27.8Dark olivegreen · ΔE 28.9
Nearest named CSS colourSea green (#2E8B57)ΔE 4.52, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C1349
Analogous#138C1A, #13868C
Triadic#56138C, #8C5613
Split complementary#8C1386, #8C1913
Tetradic#19138C, #8C1349, #868C13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7EEDBC
Lighter +30%#51E7A4
Lighter +20%#24E18D
Lighter +10%#19B972
Darker −10%#0D5F3A
Darker −20%#07321F
Darker −30%#010503
Darker −40%#000000
More saturated +25%#009F58
Less saturated −25%#277854

Channel breakdown

R19
G140
B86
Red19 (7.5%)
Green140 (54.9%)
Blue86 (33.7%)
Hue153.22°
Saturation (HSL)76.1%
Lightness31.18%
Dominant channelGreen
Hex per channelR 13 · G 8C · B 56

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Every value on this page was computed from “138c56” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.