Nerdulator> put something in

Colour

#001BBB

  • #001BBB
  • Blue
  • Dark
  • Nearest: Medium blue

#001BBB is a blue with RGB values 0, 27, 187 and HSL 231°, 100%, 37%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#001BBB#001BBB
HEX#001BBB
RGBrgb(0, 27, 187)
RGB (0–1)0, 0.1059, 0.7333
RGB percentages0%, 10.6%, 73.3%
HSLhsl(231.3, 100%, 36.7%)
HSV / HSBhsv(231.3, 100%, 73.3%)
CMYK100%, 85.6%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,099
CSS custom property--colour: #001BBB;

Brightness & contrast

Relative luminance0.04372WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.2:1
Contrast with white11.2:1WCAG normal text: AAA
Contrast with black1.87:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FFE444

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0044BFno red cones; affects about 1% of men; ΔE 26.9 from the original
Deuteranopia#0031B8no green cones; the most common form, about 1% of men; ΔE 15.3 from the original
Tritanopia#00526Fno blue cones; rare, and affects men and women equally; ΔE 87.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.2:1WCAG large text: AAA
Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Medium blue · ΔE 16.2Dark blue · ΔE 16.6Navy · ΔE 21.5Blue violet · ΔE 23.8Dark violet · ΔE 28.2Indigo · ΔE 28.3
Nearest named CSS colourMedium blue (#0000CD)ΔE 16.21, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBA000
Analogous#0079BB, #4200BB
Triadic#BB001B, #1BBB00
Split complementary#BB4200, #79BB00
Tetradic#BB0079, #BBA000, #00BB42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8899FF
Lighter +30%#556EFF
Lighter +20%#2242FF
Lighter +10%#0022EE
Darker −10%#001488
Darker −20%#000C55
Darker −30%#000522
Darker −40%#000000
More saturated +25%#001BBB
Less saturated −25%#172CA4

Channel breakdown

R0
G27
B187
Red0 (0%)
Green27 (10.6%)
Blue187 (73.3%)
Hue231.34°
Saturation (HSL)100%
Lightness36.67%
Dominant channelBlue
Hex per channelR 00 · G 1B · B BB

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “001bbb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.