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Colour

#053DB5

  • #053DB5
  • Blue
  • Dark
  • Nearest: Slate blue

#053DB5 is a blue with RGB values 5, 61, 181 and HSL 221°, 95%, 36%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#053DB5#053DB5
HEX#053DB5
RGBrgb(5, 61, 181)
RGB (0–1)0.0196, 0.2392, 0.7098
RGB percentages2%, 23.9%, 71%
HSLhsl(220.9, 94.6%, 36.5%)
HSV / HSBhsv(220.9, 97.2%, 71%)
CMYK97.2%, 66.3%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer343,477
CSS custom property--colour: #053DB5;

Brightness & contrast

Relative luminance0.06706WCAG 2.x, 0 is black and 1 is white
Perceived brightness77 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.97:1
Contrast with white8.97:1WCAG normal text: AAA
Contrast with black2.34:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FAC24A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051B9no red cones; affects about 1% of men; ΔE 14.9 from the original
Deuteranopia#0042B3no green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#005E73no blue cones; rare, and affects men and women equally; ΔE 69.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.97:1WCAG large text: AAA
Contrast with black, large text2.34:1WCAG large text: Fail

Named colours

Slate blue · ΔE 17.2Royal blue · ΔE 18.3Rebecca purple · ΔE 22.2Medium slateblue · ΔE 22.4Navy · ΔE 23.1Midnight blue · ΔE 23.3
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 17.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B57D05
Analogous#0595B5, #2505B5
Triadic#B5053D, #3DB505
Split complementary#B52505, #95B505
Tetradic#B50595, #B57D05, #05B525

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8AAEFC
Lighter +30%#598CFA
Lighter +20%#276AF9
Lighter +10%#064EE7
Darker −10%#042C83
Darker −20%#021C52
Darker −30%#010B20
Darker −40%#000000
More saturated +25%#003BBA
Less saturated −25%#1C459E

Channel breakdown

R5
G61
B181
Red5 (2%)
Green61 (23.9%)
Blue181 (71%)
Hue220.91°
Saturation (HSL)94.62%
Lightness36.47%
Dominant channelBlue
Hex per channelR 05 · G 3D · B B5

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Every value on this page was computed from “053db5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.