Nerdulator> put something in

Colour

#001B71

  • #001B71
  • Blue
  • Dark
  • Nearest: Midnight blue

#001B71 is a blue with RGB values 0, 27, 113 and HSL 226°, 100%, 22%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001B71#001B71
HEX#001B71
RGBrgb(0, 27, 113)
RGB (0–1)0, 0.1059, 0.4431
RGB percentages0%, 10.6%, 44.3%
HSLhsl(225.7, 100%, 22.2%)
HSV / HSBhsv(225.7, 100%, 44.3%)
CMYK100%, 76.1%, 0%, 55.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,025
CSS custom property--colour: #001B71;

Brightness & contrast

Relative luminance0.01976WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.05:1
Contrast with white15.05:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#FFE48E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002C74no red cones; affects about 1% of men; ΔE 13.4 from the original
Deuteranopia#00216Fno green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#003444no blue cones; rare, and affects men and women equally; ΔE 53.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.05:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 3Dark slateblue · ΔE 18.2Rebecca purple · ΔE 22.6Navy · ΔE 23Indigo · ΔE 23.2Dark blue · ΔE 27.6
Nearest named CSS colourMidnight blue (#191970)ΔE 3.04, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#715600
Analogous#005471, #1D0071
Triadic#71001B, #1B7100
Split complementary#711D00, #547100
Tetradic#710054, #715600, #00711D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3E6CFF
Lighter +30%#0B45FF
Lighter +20%#0033D7
Lighter +10%#0027A4
Darker −10%#000F3E
Darker −20%#00030B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001B71
Less saturated −25%#0E2263

Channel breakdown

R0
G27
B113
Red0 (0%)
Green27 (10.6%)
Blue113 (44.3%)
Hue225.66°
Saturation (HSL)100%
Lightness22.16%
Dominant channelBlue
Hex per channelR 00 · G 1B · B 71

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 “001b71” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.