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Colour

#013563

  • #013563
  • Blue
  • Dark
  • Nearest: Dark slateblue

#013563 is a blue with RGB values 1, 53, 99 and HSL 208°, 98%, 20%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#013563#013563
HEX#013563
RGBrgb(1, 53, 99)
RGB (0–1)0.0039, 0.2078, 0.3882
RGB percentages0.4%, 20.8%, 38.8%
HSLhsl(208.2, 98%, 19.6%)
HSV / HSBhsv(208.2, 99%, 38.8%)
CMYK99%, 46.5%, 0%, 61.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer79,203
CSS custom property--colour: #013563;

Brightness & contrast

Relative luminance0.03454WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.42:1
Contrast with white12.42:1WCAG normal text: AAA
Contrast with black1.69:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#FECA9C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1D3965no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#083062no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#004047no blue cones; rare, and affects men and women equally; ΔE 29.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.42:1WCAG large text: AAA
Contrast with black, large text1.69:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 26Steel blue · ΔE 31.8Dark slate grey · ΔE 33.4Midnight blue · ΔE 33.5Slate grey · ΔE 38Black · ΔE 38.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#632F01
Analogous#016360, #010463
Triadic#630135, #356301
Split complementary#630104, #636001
Tetradic#600163, #632F01, #046301

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#339EFD
Lighter +30%#0386FA
Lighter +20%#026BC8
Lighter +10%#025095
Darker −10%#001A31
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003564
Less saturated −25%#0D3457

Channel breakdown

R1
G53
B99
Red1 (0.4%)
Green53 (20.8%)
Blue99 (38.8%)
Hue208.16°
Saturation (HSL)98%
Lightness19.61%
Dominant channelBlue
Hex per channelR 01 · G 35 · B 63

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Every value on this page was computed from “hex 013563” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.