Nerdulator> put something in

Recognised as Colour

#3F646D

  • #3F646D
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#3F646D is a cyan with RGB values 63, 100, 109 and HSL 192°, 27%, 34%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3F646D#3F646D
HEX#3F646D
RGBrgb(63, 100, 109)
RGB (0–1)0.2471, 0.3922, 0.4275
RGB percentages24.7%, 39.2%, 42.7%
HSLhsl(191.7, 26.7%, 33.7%)
HSV / HSBhsv(191.7, 42.2%, 42.7%)
CMYK42.2%, 8.3%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,154,477
CSS custom property--colour: #3F646D;

Brightness & contrast

Relative luminance0.11275WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.45:1
Contrast with white6.45:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#C09B92

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D626Eno red cones; affects about 1% of men; ΔE 11.6 from the original
Deuteranopia#565C6Dno green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#2C6867no blue cones; rare, and affects men and women equally; ΔE 9.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.45:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 10.4Dim grey · ΔE 14.7Slate grey · ΔE 15.4Light slate grey · ΔE 18Gray · ΔE 19.5Teal · ΔE 20
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.44, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D483F
Analogous#3F6D5F, #3F4D6D
Triadic#6D3F64, #646D3F
Split complementary#6D3F4D, #6D5F3F
Tetradic#5F3F6D, #6D483F, #4D6D3F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAC7CE
Lighter +30%#8AB2BB
Lighter +20%#699CA9
Lighter +10%#52828D
Darker −10%#2C464D
Darker −20%#1A292C
Darker −30%#070B0C
Darker −40%#000000
More saturated +25%#2A7183
Less saturated −25%#555758

Channel breakdown

R63
G100
B109
Red63 (24.7%)
Green100 (39.2%)
Blue109 (42.7%)
Hue191.74°
Saturation (HSL)26.74%
Lightness33.73%
Dominant channelBlue
Hex per channelR 3F · G 64 · B 6D

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “3f646d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.