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Recognised as Colour

#003455

  • #003455
  • Blue
  • Dark
  • Nearest: Dark slate grey

#003455 is a blue with RGB values 0, 52, 85 and HSL 203°, 100%, 17%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#003455#003455
HEX#003455
RGBrgb(0, 52, 85)
RGB (0–1)0, 0.2039, 0.3333
RGB percentages0%, 20.4%, 33.3%
HSLhsl(203.3, 100%, 16.7%)
HSV / HSBhsv(203.3, 100%, 33.3%)
CMYK100%, 38.8%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,397
CSS custom property--colour: #003455;

Brightness & contrast

Relative luminance0.03112WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.94:1
Contrast with white12.94:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#FFCBAA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#243556no red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#172E54no green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#003C40no blue cones; rare, and affects men and women equally; ΔE 22 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.94:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 25.4Black · ΔE 31.9Steel blue · ΔE 33Dim grey · ΔE 34.2Dark slateblue · ΔE 34.5Slate grey · ΔE 35.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 25.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#552100
Analogous#00554B, #000A55
Triadic#550034, #345500
Split complementary#55000A, #554B00
Tetradic#4B0055, #552100, #0A5500

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#22A9FF
Lighter +30%#0092EE
Lighter +20%#0072BB
Lighter +10%#005388
Darker −10%#001522
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003455
Less saturated −25%#0B324A

Channel breakdown

R0
G52
B85
Red0 (0%)
Green52 (20.4%)
Blue85 (33.3%)
Hue203.29°
Saturation (HSL)100%
Lightness16.67%
Dominant channelBlue
Hex per channelR 00 · G 34 · B 55

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Every value on this page was computed from “hex 003455” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.