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Recognised as Colour

#1C646C

  • #1C646C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#1C646C is a cyan with RGB values 28, 100, 108 and HSL 186°, 59%, 27%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1C646C#1C646C
HEX#1C646C
RGBrgb(28, 100, 108)
RGB (0–1)0.1098, 0.3922, 0.4235
RGB percentages11%, 39.2%, 42.4%
HSLhsl(186, 58.8%, 26.7%)
HSV / HSBhsv(186, 74.1%, 42.4%)
CMYK74.1%, 7.4%, 0%, 57.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,860,716
CSS custom property--colour: #1C646C;

Brightness & contrast

Relative luminance0.10444WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.8:1
Contrast with white6.8:1WCAG normal text: AA
Contrast with black3.09:1WCAG normal text: Fail
Greyscale equivalent#555555
Inverted#E39B93

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5B606Dno red cones; affects about 1% of men; ΔE 20.1 from the original
Deuteranopia#50576Cno green cones; the most common form, about 1% of men; ΔE 21.3 from the original
Tritanopia#006966no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.8:1WCAG large text: AAA
Contrast with black, large text3.09:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 12.4Teal · ΔE 14.2Dark cyan · ΔE 18.2Slate grey · ΔE 21.8Dim grey · ΔE 22.4Cadetblue · ΔE 22.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.44, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6C241C
Analogous#1C6C4C, #1C3C6C
Triadic#6C1C64, #646C1C
Split complementary#6C1C3C, #6C4C1C
Tetradic#4C1C6C, #6C241C, #3C6C1C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#78D2DC
Lighter +30%#50C4D2
Lighter +20%#31AFBD
Lighter +10%#278A95
Darker −10%#123F44
Darker −20%#07191B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B727D
Less saturated −25%#2D565B

Channel breakdown

R28
G100
B108
Red28 (11%)
Green100 (39.2%)
Blue108 (42.4%)
Hue186°
Saturation (HSL)58.82%
Lightness26.67%
Dominant channelBlue
Hex per channelR 1C · G 64 · B 6C

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Every value on this page was computed from “1c646c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.