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Recognised as Colour

#15474E

  • #15474E
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#15474E is a cyan with RGB values 21, 71, 78 and HSL 187°, 58%, 19%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#15474E#15474E
HEX#15474E
RGBrgb(21, 71, 78)
RGB (0–1)0.0824, 0.2784, 0.3059
RGB percentages8.2%, 27.8%, 30.6%
HSLhsl(187.4, 57.6%, 19.4%)
HSV / HSBhsv(187.4, 73.1%, 30.6%)
CMYK73.1%, 9%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,394,510
CSS custom property--colour: #15474E;

Brightness & contrast

Relative luminance0.05216WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.28:1
Contrast with white10.28:1WCAG normal text: AAA
Contrast with black2.04:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#EAB8B1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#40444Eno red cones; affects about 1% of men; ΔE 14.9 from the original
Deuteranopia#383E4Eno green cones; the most common form, about 1% of men; ΔE 15.6 from the original
Tritanopia#004A49no blue cones; rare, and affects men and women equally; ΔE 7.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.28:1WCAG large text: AAA
Contrast with black, large text2.04:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.9Dim grey · ΔE 23.8Teal · ΔE 25.8Slate grey · ΔE 28.1Dark cyan · ΔE 30Light slate grey · ΔE 30.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.94, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E1C15
Analogous#154E38, #152B4E
Triadic#4E1547, #474E15
Split complementary#4E152B, #4E3915
Tetradic#39154E, #4E1C15, #2B4E15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5CC4D3
Lighter +30%#35B5C7
Lighter +20%#2B909E
Lighter +10%#206C76
Darker −10%#0A2226
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#09505A
Less saturated −25%#213E42

Channel breakdown

R21
G71
B78
Red21 (8.2%)
Green71 (27.8%)
Blue78 (30.6%)
Hue187.37°
Saturation (HSL)57.58%
Lightness19.41%
Dominant channelBlue
Hex per channelR 15 · G 47 · B 4E

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Every value on this page was computed from “15474e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.