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Recognised as Colour

#1D35BB

  • #1D35BB
  • Blue
  • Dark
  • Nearest: Dark blue

#1D35BB is a blue with RGB values 29, 53, 187 and HSL 231°, 73%, 42%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#1D35BB#1D35BB
HEX#1D35BB
RGBrgb(29, 53, 187)
RGB (0–1)0.1137, 0.2078, 0.7333
RGB percentages11.4%, 20.8%, 73.3%
HSLhsl(230.9, 73.1%, 42.4%)
HSV / HSBhsv(230.9, 84.5%, 73.3%)
CMYK84.5%, 71.7%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,914,299
CSS custom property--colour: #1D35BB;

Brightness & contrast

Relative luminance0.06395WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.21:1
Contrast with white9.21:1WCAG normal text: AAA
Contrast with black2.28:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#E2CA44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004FBFno red cones; affects about 1% of men; ΔE 19.4 from the original
Deuteranopia#0040B9no green cones; the most common form, about 1% of men; ΔE 10 from the original
Tritanopia#005B74no blue cones; rare, and affects men and women equally; ΔE 75.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.21:1WCAG large text: AAA
Contrast with black, large text2.28:1WCAG large text: Fail

Named colours

Dark blue · ΔE 18.1Navy · ΔE 19.7Slate blue · ΔE 21.4Medium slateblue · ΔE 22.7Indigo · ΔE 23.2Royal blue · ΔE 24.3
Nearest named CSS colourDark blue (#00008B)ΔE 18.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBA31D
Analogous#1D84BB, #541DBB
Triadic#BB1D35, #35BB1D
Split complementary#BB541D, #84BB1D
Tetradic#BB1D84, #BBA31D, #1DBB54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B1BBF3
Lighter +30%#8595EC
Lighter +20%#596EE5
Lighter +10%#2D48DE
Darker −10%#16288F
Darker −20%#0F1C63
Darker −30%#080F37
Darker −40%#02030A
More saturated +25%#0222D6
Less saturated −25%#3848A0

Channel breakdown

R29
G53
B187
Red29 (11.4%)
Green53 (20.8%)
Blue187 (73.3%)
Hue230.89°
Saturation (HSL)73.15%
Lightness42.35%
Dominant channelBlue
Hex per channelR 1D · G 35 · B BB

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Every value on this page was computed from “1d35bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.