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Recognised as Colour

#013597

  • #013597
  • Blue
  • Dark
  • Nearest: Midnight blue

#013597 is a blue with RGB values 1, 53, 151 and HSL 219°, 99%, 30%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#013597#013597
HEX#013597
RGBrgb(1, 53, 151)
RGB (0–1)0.0039, 0.2078, 0.5922
RGB percentages0.4%, 20.8%, 59.2%
HSLhsl(219.2, 98.7%, 29.8%)
HSV / HSBhsv(219.2, 99.3%, 59.2%)
CMYK99.3%, 64.9%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer79,255
CSS custom property--colour: #013597;

Brightness & contrast

Relative luminance0.04787WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.73:1
Contrast with white10.73:1WCAG normal text: AAA
Contrast with black1.96:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#FECA68

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00459Ano red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#003795no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#004F61no blue cones; rare, and affects men and women equally; ΔE 57.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.73:1WCAG large text: AAA
Contrast with black, large text1.96:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13.8Dark slateblue · ΔE 15.9Rebecca purple · ΔE 20.2Slate blue · ΔE 21.4Royal blue · ΔE 23.1Navy · ΔE 25.7
Nearest named CSS colourMidnight blue (#191970)ΔE 13.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#976301
Analogous#018097, #180197
Triadic#970135, #359701
Split complementary#971801, #809701
Tetradic#970180, #976301, #019718

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#669BFE
Lighter +30%#3379FE
Lighter +20%#0259FC
Lighter +10%#0147CA
Darker −10%#012364
Darker −20%#001132
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003598
Less saturated −25%#143B84

Channel breakdown

R1
G53
B151
Red1 (0.4%)
Green53 (20.8%)
Blue151 (59.2%)
Hue219.2°
Saturation (HSL)98.68%
Lightness29.8%
Dominant channelBlue
Hex per channelR 01 · G 35 · B 97

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Every value on this page was computed from “hex 013597” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.