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Recognised as Colour

#013B72

  • #013B72
  • Blue
  • Dark
  • Nearest: Dark slateblue

#013B72 is a blue with RGB values 1, 59, 114 and HSL 209°, 98%, 23%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#013B72#013B72
HEX#013B72
RGBrgb(1, 59, 114)
RGB (0–1)0.0039, 0.2314, 0.4471
RGB percentages0.4%, 23.1%, 44.7%
HSLhsl(209.2, 98.3%, 22.5%)
HSV / HSBhsv(209.2, 99.1%, 44.7%)
CMYK99.1%, 48.2%, 0%, 55.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer80,754
CSS custom property--colour: #013B72;

Brightness & contrast

Relative luminance0.04349WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.23:1
Contrast with white11.23:1WCAG normal text: AAA
Contrast with black1.87:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FEC48D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1C4074no red cones; affects about 1% of men; ΔE 3.6 from the original
Deuteranopia#003671no green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#004851no blue cones; rare, and affects men and women equally; ΔE 34 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.23:1WCAG large text: AAA
Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.2Midnight blue · ΔE 29.8Steel blue · ΔE 29.9Dark slate grey · ΔE 37.9Rebecca purple · ΔE 38.8Slate grey · ΔE 39.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.21, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#723801
Analogous#017271, #010272
Triadic#72013B, #3B7201
Split complementary#720102, #727101
Tetradic#710172, #723801, #027201

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#42A2FD
Lighter +30%#0F89FD
Lighter +20%#026FD7
Lighter +10%#0155A5
Darker −10%#01213F
Darker −20%#00070D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003B73
Less saturated −25%#0F3B64

Channel breakdown

R1
G59
B114
Red1 (0.4%)
Green59 (23.1%)
Blue114 (44.7%)
Hue209.2°
Saturation (HSL)98.26%
Lightness22.55%
Dominant channelBlue
Hex per channelR 01 · G 3B · B 72

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Every value on this page was computed from “013b72” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.