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Recognised as Colour

#3C4049

  • #3C4049
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3C4049 is a blue with RGB values 60, 64, 73 and HSL 222°, 10%, 26%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3C4049#3C4049
HEX#3C4049
RGBrgb(60, 64, 73)
RGB (0–1)0.2353, 0.251, 0.2863
RGB percentages23.5%, 25.1%, 28.6%
HSLhsl(221.5, 9.8%, 26.1%)
HSV / HSBhsv(221.5, 17.8%, 28.6%)
CMYK17.8%, 12.3%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,948,617
CSS custom property--colour: #3C4049;

Brightness & contrast

Relative luminance0.05108WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.39:1
Contrast with white10.39:1WCAG normal text: AAA
Contrast with black2.02:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#C3BFB6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3D4149no red cones; affects about 1% of men; ΔE 0.8 from the original
Deuteranopia#3C3F49no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#394243no blue cones; rare, and affects men and women equally; ΔE 5.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.39:1WCAG large text: AAA
Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.2Dim grey · ΔE 18.4Slate grey · ΔE 26.3Gray · ΔE 27.2Black · ΔE 27.7Light slate grey · ΔE 29.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.18, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#49453C
Analogous#3C4649, #3E3C49
Triadic#493C40, #40493C
Split complementary#493E3C, #46493C
Tetradic#493C46, #49453C, #3C493E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0A5B1
Lighter +30%#848B9A
Lighter +20%#6A7181
Lighter +10%#535965
Darker −10%#25272D
Darker −20%#0E0F11
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2B3A5A
Less saturated −25%#424242

Channel breakdown

R60
G64
B73
Red60 (23.5%)
Green64 (25.1%)
Blue73 (28.6%)
Hue221.54°
Saturation (HSL)9.77%
Lightness26.08%
Dominant channelBlue
Hex per channelR 3C · G 40 · B 49

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Every value on this page was computed from “3c4049” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.