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Colour

#15B478

  • #15B478
  • Cyan
  • Dark
  • Nearest: Medium seagreen

#15B478 is a cyan with RGB values 21, 180, 120 and HSL 157°, 79%, 39%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Medium seagreen.

Colour values

#15B478#15B478
HEX#15B478
RGBrgb(21, 180, 120)
RGB (0–1)0.0824, 0.7059, 0.4706
RGB percentages8.2%, 70.6%, 47.1%
HSLhsl(157.4, 79.1%, 39.4%)
HSV / HSBhsv(157.4, 88.3%, 70.6%)
CMYK88.3%, 0%, 33.3%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,422,456
CSS custom property--colour: #15B478;

Brightness & contrast

Relative luminance0.34158WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.83:1
Contrast with white2.68:1WCAG normal text: Fail
Contrast with black7.83:1WCAG normal text: AAA
Greyscale equivalent#8E8E8E
Inverted#EA4B87

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B2A574no red cones; affects about 1% of men; ΔE 49.9 from the original
Deuteranopia#A0997Cno green cones; the most common form, about 1% of men; ΔE 49.9 from the original
Tritanopia#00B3A4no blue cones; rare, and affects men and women equally; ΔE 25.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.68:1WCAG large text: Fail
Contrast with black, large text7.83:1WCAG large text: AAA

Named colours

Medium seagreen · ΔE 5.6Sea green · ΔE 18.3Medium aquamarine · ΔE 21Light green · ΔE 27.8Forest green · ΔE 28.9Dark seagreen · ΔE 29.1
Nearest named CSS colourMedium seagreen (#3CB371)ΔE 5.61, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B41551
Analogous#15B429, #15A1B4
Triadic#7815B4, #B47815
Split complementary#B415A1, #B42915
Tetradic#2915B4, #B41551, #A1B415

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1F4D5
Lighter +30%#73EFC0
Lighter +20%#46E9AC
Lighter +10%#1AE296
Darker −10%#10865A
Darker −20%#0A593B
Darker −30%#052B1D
Darker −40%#000000
More saturated +25%#00C97D
Less saturated −25%#2E9B72

Channel breakdown

R21
G180
B120
Red21 (8.2%)
Green180 (70.6%)
Blue120 (47.1%)
Hue157.36°
Saturation (HSL)79.1%
Lightness39.41%
Dominant channelGreen
Hex per channelR 15 · G B4 · B 78

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Every value on this page was computed from “15b478” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.