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Recognised as Colour

#378D71

  • #378D71
  • Cyan
  • Dark
  • Nearest: Sea green

#378D71 is a cyan with RGB values 55, 141, 113 and HSL 160°, 44%, 38%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#378D71#378D71
HEX#378D71
RGBrgb(55, 141, 113)
RGB (0–1)0.2157, 0.5529, 0.4431
RGB percentages21.6%, 55.3%, 44.3%
HSLhsl(160.5, 43.9%, 38.4%)
HSV / HSBhsv(160.5, 61%, 55.3%)
CMYK61%, 0%, 19.9%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,640,689
CSS custom property--colour: #378D71;

Brightness & contrast

Relative luminance0.21054WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.21:1
Contrast with white4.03:1WCAG normal text: Fail
Contrast with black5.21:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#C8728E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8A8470no red cones; affects about 1% of men; ΔE 32 from the original
Deuteranopia#7D7B73no green cones; the most common form, about 1% of men; ΔE 32.3 from the original
Tritanopia#008E85no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.03:1WCAG large text: AA
Contrast with black, large text5.21:1WCAG large text: AAA

Named colours

Sea green · ΔE 14.5Dark cyan · ΔE 16.5Teal · ΔE 17Light seagreen · ΔE 19.3Cadetblue · ΔE 21.4Medium aquamarine · ΔE 23.3
Nearest named CSS colourSea green (#2E8B57)ΔE 14.51, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D3753
Analogous#378D46, #377E8D
Triadic#71378D, #8D7137
Split complementary#8D377E, #8D4637
Tetradic#46378D, #8D3753, #7E8D37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B0E0D0
Lighter +30%#8BD2BB
Lighter +20%#66C4A5
Lighter +10%#45B28E
Darker −10%#296854
Darker −20%#1A4436
Darker −30%#0C1F19
Darker −40%#000000
More saturated +25%#1FA67A
Less saturated −25%#507568

Channel breakdown

R55
G141
B113
Red55 (21.6%)
Green141 (55.3%)
Blue113 (44.3%)
Hue160.47°
Saturation (HSL)43.88%
Lightness38.43%
Dominant channelGreen
Hex per channelR 37 · G 8D · B 71

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Every value on this page was computed from “378d71” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.