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Recognised as Colour

#3D4E59

  • #3D4E59
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3D4E59 is a blue with RGB values 61, 78, 89 and HSL 204°, 19%, 29%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3D4E59#3D4E59
HEX#3D4E59
RGBrgb(61, 78, 89)
RGB (0–1)0.2392, 0.3059, 0.349
RGB percentages23.9%, 30.6%, 34.9%
HSLhsl(203.6, 18.7%, 29.4%)
HSV / HSBhsv(203.6, 31.5%, 34.9%)
CMYK31.5%, 12.4%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,017,753
CSS custom property--colour: #3D4E59;

Brightness & contrast

Relative luminance0.07162WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.63:1
Contrast with white8.63:1WCAG normal text: AAA
Contrast with black2.43:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#C2B1A6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#494D5Ano red cones; affects about 1% of men; ΔE 5.3 from the original
Deuteranopia#454A59no green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#345151no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.63:1WCAG large text: AAA
Contrast with black, large text2.43:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.5Dim grey · ΔE 15.4Slate grey · ΔE 20.8Gray · ΔE 23.4Light slate grey · ΔE 23.9Teal · ΔE 29.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.46, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#59483D
Analogous#3D5956, #3D4059
Triadic#593D4E, #4E593D
Split complementary#593D40, #59563D
Tetradic#563D59, #59483D, #40593D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A2B4C0
Lighter +30%#849CAB
Lighter +20%#668396
Lighter +10%#526977
Darker −10%#28333B
Darker −20%#14191C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2A526C
Less saturated −25%#4B4B4B

Channel breakdown

R61
G78
B89
Red61 (23.9%)
Green78 (30.6%)
Blue89 (34.9%)
Hue203.57°
Saturation (HSL)18.67%
Lightness29.41%
Dominant channelBlue
Hex per channelR 3D · G 4E · B 59

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Every value on this page was computed from “3d4e59” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.