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Recognised as Colour

#404D4D

  • #404D4D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#404D4D is a cyan with RGB values 64, 77, 77 and HSL 180°, 9%, 28%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#404D4D#404D4D
HEX#404D4D
RGBrgb(64, 77, 77)
RGB (0–1)0.251, 0.302, 0.302
RGB percentages25.1%, 30.2%, 30.2%
HSLhsl(180, 9.2%, 27.6%)
HSV / HSBhsv(180, 16.9%, 30.2%)
CMYK16.9%, 0%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,214,093
CSS custom property--colour: #404D4D;

Brightness & contrast

Relative luminance0.06934WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.8:1
Contrast with white8.8:1WCAG normal text: AAA
Contrast with black2.39:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#BFB2B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B4C4Dno red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#494A4Dno green cones; the most common form, about 1% of men; ΔE 5.4 from the original
Tritanopia#3C4E4Dno blue cones; rare, and affects men and women equally; ΔE 2.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.8:1WCAG large text: AAA
Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.9Dim grey · ΔE 13.9Gray · ΔE 22.6Slate grey · ΔE 23.1Light slate grey · ΔE 26.2Teal · ΔE 29.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.89, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D4040
Analogous#404D47, #40474D
Triadic#4D404D, #4D4D40
Split complementary#4D4047, #4D4740
Tetradic#47404D, #4D4040, #474D40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A5B4B4
Lighter +30%#899D9D
Lighter +20%#6E8585
Lighter +10%#576969
Darker −10%#293131
Darker −20%#121515
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2E5F5F
Less saturated −25%#474747

Channel breakdown

R64
G77
B77
Red64 (25.1%)
Green77 (30.2%)
Blue77 (30.2%)
Hue180°
Saturation (HSL)9.22%
Lightness27.65%
Dominant channelGreen and Blue
Hex per channelR 40 · G 4D · B 4D

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Every value on this page was computed from “404d4d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.