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Recognised as Colour

#00355A

  • #00355A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#00355A is a blue with RGB values 0, 53, 90 and HSL 205°, 100%, 18%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00355A#00355A
HEX#00355A
RGBrgb(0, 53, 90)
RGB (0–1)0, 0.2078, 0.3529
RGB percentages0%, 20.8%, 35.3%
HSLhsl(204.7, 100%, 17.6%)
HSV / HSBhsv(204.7, 100%, 35.3%)
CMYK100%, 41.1%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,658
CSS custom property--colour: #00355A;

Brightness & contrast

Relative luminance0.03284WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.67:1
Contrast with white12.67:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#FFCAA5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#23375Cno red cones; affects about 1% of men; ΔE 5.6 from the original
Deuteranopia#152F59no green cones; the most common form, about 1% of men; ΔE 6.8 from the original
Tritanopia#003E43no blue cones; rare, and affects men and women equally; ΔE 24.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.67:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 27.6Dark slateblue · ΔE 31.9Steel blue · ΔE 32.1Black · ΔE 34Dim grey · ΔE 35.3Slate grey · ΔE 35.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 27.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A2500
Analogous#005A52, #00085A
Triadic#5A0035, #355A00
Split complementary#5A0008, #5A5200
Tetradic#52005A, #5A2500, #085A00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#27A6FF
Lighter +30%#008FF3
Lighter +20%#0071C0
Lighter +10%#00538D
Darker −10%#001727
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00355A
Less saturated −25%#0B334F

Channel breakdown

R0
G53
B90
Red0 (0%)
Green53 (20.8%)
Blue90 (35.3%)
Hue204.67°
Saturation (HSL)100%
Lightness17.65%
Dominant channelBlue
Hex per channelR 00 · G 35 · B 5A

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Every value on this page was computed from “00355a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.