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Recognised as Colour

#004A40

  • #004A40
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004A40 is a cyan with RGB values 0, 74, 64 and HSL 172°, 100%, 15%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004A40#004A40
HEX#004A40
RGBrgb(0, 74, 64)
RGB (0–1)0, 0.2902, 0.251
RGB percentages0%, 29%, 25.1%
HSLhsl(171.9, 100%, 14.5%)
HSV / HSBhsv(171.9, 100%, 29%)
CMYK100%, 0%, 13.5%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,008
CSS custom property--colour: #004A40;

Brightness & contrast

Relative luminance0.05268WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.23:1
Contrast with white10.23:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FFB5BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#464540no red cones; affects about 1% of men; ΔE 22.7 from the original
Deuteranopia#3D3E41no green cones; the most common form, about 1% of men; ΔE 23.5 from the original
Tritanopia#004B47no blue cones; rare, and affects men and women equally; ΔE 4.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.23:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.6Teal · ΔE 23.2Dark cyan · ΔE 27.4Dim grey · ΔE 28.6Dark olivegreen · ΔE 34.1Slate grey · ΔE 34.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.62, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A000A
Analogous#004A1B, #002F4A
Triadic#40004A, #4A4000
Split complementary#4A002F, #4A1B00
Tetradic#1B004A, #4A000A, #2F4A00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#17FFE0
Lighter +30%#00E3C4
Lighter +20%#00B098
Lighter +10%#007D6C
Darker −10%#001714
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004A40
Less saturated −25%#094139

Channel breakdown

R0
G74
B64
Red0 (0%)
Green74 (29%)
Blue64 (25.1%)
Hue171.89°
Saturation (HSL)100%
Lightness14.51%
Dominant channelGreen
Hex per channelR 00 · G 4A · B 40

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Every value on this page was computed from “004a40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.