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Recognised as Colour

#278C7C

  • #278C7C
  • Cyan
  • Dark
  • Nearest: Dark cyan

#278C7C is a cyan with RGB values 39, 140, 124 and HSL 170°, 56%, 35%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#278C7C#278C7C
HEX#278C7C
RGBrgb(39, 140, 124)
RGB (0–1)0.1529, 0.549, 0.4863
RGB percentages15.3%, 54.9%, 48.6%
HSLhsl(170.5, 56.4%, 35.1%)
HSV / HSBhsv(170.5, 72.1%, 54.9%)
CMYK72.1%, 0%, 11.4%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,591,868
CSS custom property--colour: #278C7C;

Brightness & contrast

Relative luminance0.20643WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.13:1
Contrast with white4.09:1WCAG normal text: Fail
Contrast with black5.13:1WCAG normal text: AA
Greyscale equivalent#757575
Inverted#D87383

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#86837Bno red cones; affects about 1% of men; ΔE 32.4 from the original
Deuteranopia#78797Dno green cones; the most common form, about 1% of men; ΔE 33 from the original
Tritanopia#008E87no blue cones; rare, and affects men and women equally; ΔE 5.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.09:1WCAG large text: AA
Contrast with black, large text5.13:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 9.4Teal · ΔE 10.4Light seagreen · ΔE 15.7Cadetblue · ΔE 17.2Sea green · ΔE 21.1Medium aquamarine · ΔE 25.2
Nearest named CSS colourDark cyan (#008B8B)ΔE 9.44, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C2737
Analogous#278C4A, #276A8C
Triadic#7C278C, #8C7C27
Split complementary#8C276A, #8C4A27
Tetradic#49278C, #8C2737, #6A8C27

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CE3D8
Lighter +30%#74D8C8
Lighter +20%#4CCDB9
Lighter +10%#32B49F
Darker −10%#1C6459
Darker −20%#113C35
Darker −30%#061412
Darker −40%#000000
More saturated +25%#11A28B
Less saturated −25%#3D766D

Channel breakdown

R39
G140
B124
Red39 (15.3%)
Green140 (54.9%)
Blue124 (48.6%)
Hue170.5°
Saturation (HSL)56.42%
Lightness35.1%
Dominant channelGreen
Hex per channelR 27 · G 8C · B 7C

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Every value on this page was computed from “278c7c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.