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Recognised as Colour

#00356D

  • #00356D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00356D is a blue with RGB values 0, 53, 109 and HSL 211°, 100%, 21%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00356D#00356D
HEX#00356D
RGBrgb(0, 53, 109)
RGB (0–1)0, 0.2078, 0.4275
RGB percentages0%, 20.8%, 42.7%
HSLhsl(210.8, 100%, 21.4%)
HSV / HSBhsv(210.8, 100%, 42.7%)
CMYK100%, 51.4%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,677
CSS custom property--colour: #00356D;

Brightness & contrast

Relative luminance0.0365WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.14:1
Contrast with white12.14:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#FFCA92

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#123B6Fno red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#00316Cno green cones; the most common form, about 1% of men; ΔE 3.2 from the original
Tritanopia#00434Bno blue cones; rare, and affects men and women equally; ΔE 35.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.14:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.1Midnight blue · ΔE 27.3Steel blue · ΔE 32.9Rebecca purple · ΔE 37.3Dark slate grey · ΔE 39.8Cornflower blue · ΔE 41.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D3800
Analogous#006B6D, #02006D
Triadic#6D0035, #356D00
Split complementary#6D0200, #6B6D00
Tetradic#6D006B, #6D3800, #006D02

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3A9AFF
Lighter +30%#0780FF
Lighter +20%#0067D3
Lighter +10%#004EA0
Darker −10%#001C3A
Darker −20%#000307
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00356D
Less saturated −25%#0E355F

Channel breakdown

R0
G53
B109
Red0 (0%)
Green53 (20.8%)
Blue109 (42.7%)
Hue210.83°
Saturation (HSL)100%
Lightness21.37%
Dominant channelBlue
Hex per channelR 00 · G 35 · B 6D

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Every value on this page was computed from “00356d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.