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Recognised as Colour

#003C40

  • #003C40
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#003C40 is a cyan with RGB values 0, 60, 64 and HSL 184°, 100%, 13%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#003C40#003C40
HEX#003C40
RGBrgb(0, 60, 64)
RGB (0–1)0, 0.2353, 0.251
RGB percentages0%, 23.5%, 25.1%
HSLhsl(183.8, 100%, 12.5%)
HSV / HSBhsv(183.8, 100%, 25.1%)
CMYK100%, 6.2%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,424
CSS custom property--colour: #003C40;

Brightness & contrast

Relative luminance0.03602WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.21:1
Contrast with white12.21:1WCAG normal text: AAA
Contrast with black1.72:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#FFC3BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#363940no red cones; affects about 1% of men; ΔE 16.4 from the original
Deuteranopia#2E3340no green cones; the most common form, about 1% of men; ΔE 17.1 from the original
Tritanopia#003F3Dno blue cones; rare, and affects men and women equally; ΔE 4.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.21:1WCAG large text: AAA
Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.5Dim grey · ΔE 28.1Black · ΔE 28.2Teal · ΔE 29.1Dark cyan · ΔE 33.5Slate grey · ΔE 33.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.46, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#400400
Analogous#004024, #001C40
Triadic#40003C, #3C4000
Split complementary#40001C, #402400
Tetradic#240040, #400400, #1C4000

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0DF0FF
Lighter +30%#00CBD9
Lighter +20%#009CA6
Lighter +10%#006C73
Darker −10%#000C0D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003C40
Less saturated −25%#083538

Channel breakdown

R0
G60
B64
Red0 (0%)
Green60 (23.5%)
Blue64 (25.1%)
Hue183.75°
Saturation (HSL)100%
Lightness12.55%
Dominant channelBlue
Hex per channelR 00 · G 3C · B 40

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Every value on this page was computed from “003c40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.