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Recognised as Colour

#15515C

  • #15515C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#15515C is a cyan with RGB values 21, 81, 92 and HSL 189°, 63%, 22%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#15515C#15515C
HEX#15515C
RGBrgb(21, 81, 92)
RGB (0–1)0.0824, 0.3176, 0.3608
RGB percentages8.2%, 31.8%, 36.1%
HSLhsl(189.3, 62.8%, 22.2%)
HSV / HSBhsv(189.3, 77.2%, 36.1%)
CMYK77.2%, 12%, 0%, 63.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,397,084
CSS custom property--colour: #15515C;

Brightness & contrast

Relative luminance0.06817WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.89:1
Contrast with white8.89:1WCAG normal text: AAA
Contrast with black2.36:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#EAAEA3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#494E5Dno red cones; affects about 1% of men; ΔE 16.6 from the original
Deuteranopia#3F475Cno green cones; the most common form, about 1% of men; ΔE 17.1 from the original
Tritanopia#005554no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.89:1WCAG large text: AAA
Contrast with black, large text2.36:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 8.7Teal · ΔE 22.3Dim grey · ΔE 22.9Slate grey · ΔE 24.9Dark cyan · ΔE 26.4Light slate grey · ΔE 27.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.7, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5C2015
Analogous#155C44, #152D5C
Triadic#5C1551, #515C15
Split complementary#5C152D, #5C4415
Tetradic#44155C, #5C2015, #2D5C15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#62C8DB
Lighter +30%#38BAD2
Lighter +20%#289AAF
Lighter +10%#1E7686
Darker −10%#0C2C32
Darker −20%#020809
Darker −30%#000000
Darker −40%#000000
More saturated +25%#075B6A
Less saturated −25%#23474E

Channel breakdown

R21
G81
B92
Red21 (8.2%)
Green81 (31.8%)
Blue92 (36.1%)
Hue189.3°
Saturation (HSL)62.83%
Lightness22.16%
Dominant channelBlue
Hex per channelR 15 · G 51 · B 5C

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Every value on this page was computed from “15515c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.