Colour

#1B64AF

#1B64AF
Blue
Dark
Nearest: Steel blue

#1B64AF is a blue with RGB values 27, 100, 175 and HSL 210°, 73%, 40%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#1B64AF#1B64AF

HEX#1B64AF

RGBrgb(27, 100, 175)

RGB (0–1)0.1059, 0.3922, 0.6863

RGB percentages10.6%, 39.2%, 68.6%

HSLhsl(210.4, 73.3%, 39.6%)

HSV / HSBhsv(210.4, 84.6%, 68.6%)

CMYK84.6%, 42.9%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,795,247

CSS custom property--colour: #1B64AF;

Brightness & contrast

Relative luminance0.12442WCAG 2.x, 0 is black and 1 is white

Perceived brightness97.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.02:1

Contrast with white6.02:1WCAG normal text: AA

Contrast with black3.49:1WCAG normal text: Fail

Greyscale equivalent#5A5A5A

Inverted#E49B50

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3E6AB2no red cones; affects about 1% of men; ΔE 4.9 from the original

Deuteranopia#225DAEno green cones; the most common form, about 1% of men; ΔE 5.8 from the original

Tritanopia#007681no blue cones; rare, and affects men and women equally; ΔE 43.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.02:1WCAG large text: AAA

Contrast with black, large text3.49:1WCAG large text: AA

Named colours

Steel blue · ΔE 20.3 Cornflower blue · ΔE 20.5 Dark slateblue · ΔE 23 Dodgerblue · ΔE 24.9 Royal blue · ΔE 28.3 Slate blue · ΔE 32.1

Nearest named CSS colourSteel blue (#4682B4)ΔE 20.29, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#AF661B

Analogous#1BAEAF, #1C1BAF

Triadic#AF1B64, #64AF1B

Split complementary#AF1C1B, #AEAF1B

Tetradic#AF1BAE, #AF661B, #1BAF1C

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#A5CAF1

Lighter +30%#79B1EA

Lighter +20%#4D97E3

Lighter +10%#227DDB

Darker −10%#144B83

Darker −20%#0D3257

Darker −30%#07182A

Darker −40%#000000

More saturated +25%#0264C8

Less saturated −25%#346496

Channel breakdown

R27

G100

B175

Red27 (10.6%)

Green100 (39.2%)

Blue175 (68.6%)

Hue210.41°

Saturation (HSL)73.27%

Lightness39.61%

Dominant channelBlue

Hex per channelR 1B · G 64 · B AF

Keep nerding

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

#1B64AF

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else