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Recognised as Colour

#3F504E

  • #3F504E
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#3F504E is a cyan with RGB values 63, 80, 78 and HSL 173°, 12%, 28%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F504E#3F504E
HEX#3F504E
RGBrgb(63, 80, 78)
RGB (0–1)0.2471, 0.3137, 0.3059
RGB percentages24.7%, 31.4%, 30.6%
HSLhsl(172.9, 11.9%, 28%)
HSV / HSBhsv(172.9, 21.2%, 31.4%)
CMYK21.2%, 0%, 2.5%, 68.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,149,326
CSS custom property--colour: #3F504E;

Brightness & contrast

Relative luminance0.07344WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.51:1
Contrast with white8.51:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#C0AFB1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4E4E4Eno red cones; affects about 1% of men; ΔE 7.2 from the original
Deuteranopia#4B4C4Eno green cones; the most common form, about 1% of men; ΔE 7.2 from the original
Tritanopia#3A514Fno blue cones; rare, and affects men and women equally; ΔE 2.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.51:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5.5Dim grey · ΔE 13.8Gray · ΔE 22.2Slate grey · ΔE 22.9Light slate grey · ΔE 25.9Teal · ΔE 27.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 5.51, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#503F41
Analogous#3F5046, #3F4950
Triadic#4E3F50, #504E3F
Split complementary#503F49, #50463F
Tetradic#463F50, #503F41, #49503F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A4B7B5
Lighter +30%#87A19E
Lighter +20%#6C8986
Lighter +10%#556D6A
Darker −10%#293332
Darker −20%#121716
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2D625C
Less saturated −25%#484848

Channel breakdown

R63
G80
B78
Red63 (24.7%)
Green80 (31.4%)
Blue78 (30.6%)
Hue172.94°
Saturation (HSL)11.89%
Lightness28.04%
Dominant channelGreen
Hex per channelR 3F · G 50 · B 4E

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Every value on this page was computed from “3f504e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.