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Recognised as Colour

#3D4756

  • #3D4756
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3D4756 is a blue with RGB values 61, 71, 86 and HSL 216°, 17%, 29%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3D4756#3D4756
HEX#3D4756
RGBrgb(61, 71, 86)
RGB (0–1)0.2392, 0.2784, 0.3373
RGB percentages23.9%, 27.8%, 33.7%
HSLhsl(216, 17%, 28.8%)
HSV / HSBhsv(216, 29.1%, 33.7%)
CMYK29.1%, 17.4%, 0%, 66.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,015,958
CSS custom property--colour: #3D4756;

Brightness & contrast

Relative luminance0.0617WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.4:1
Contrast with white9.4:1WCAG normal text: AAA
Contrast with black2.23:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#C2B8A9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#424857no red cones; affects about 1% of men; ΔE 1.7 from the original
Deuteranopia#3F4556no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#364A4Cno 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 text9.4:1WCAG large text: AAA
Contrast with black, large text2.23:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.4Dim grey · ΔE 17.8Slate grey · ΔE 23.1Gray · ΔE 25.9Light slate grey · ΔE 26.2Black · ΔE 31.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#564C3D
Analogous#3D5456, #403D56
Triadic#563D47, #47563D
Split complementary#56403D, #54563D
Tetradic#563D54, #564C3D, #3D5640

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A2ADBD
Lighter +30%#8492A8
Lighter +20%#677892
Lighter +10%#526074
Darker −10%#282E38
Darker −20%#13161A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2B4368
Less saturated −25%#4A4A4A

Channel breakdown

R61
G71
B86
Red61 (23.9%)
Green71 (27.8%)
Blue86 (33.7%)
Hue216°
Saturation (HSL)17.01%
Lightness28.82%
Dominant channelBlue
Hex per channelR 3D · G 47 · B 56

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Every value on this page was computed from “3d4756” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.