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Recognised as Colour

#1B4796

  • #1B4796
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1B4796 is a blue with RGB values 27, 71, 150 and HSL 219°, 69%, 35%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1B4796#1B4796
HEX#1B4796
RGBrgb(27, 71, 150)
RGB (0–1)0.1059, 0.2784, 0.5882
RGB percentages10.6%, 27.8%, 58.8%
HSLhsl(218.5, 69.5%, 34.7%)
HSV / HSBhsv(218.5, 82%, 58.8%)
CMYK82%, 52.7%, 0%, 41.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,787,798
CSS custom property--colour: #1B4796;

Brightness & contrast

Relative luminance0.06941WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.79:1
Contrast with white8.79:1WCAG normal text: AAA
Contrast with black2.39:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#E4B869

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#115099no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#004594no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#005A67no blue cones; rare, and affects men and women equally; ΔE 47.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.79:1WCAG large text: AAA
Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.9Midnight blue · ΔE 22.7Royal blue · ΔE 26.2Slate blue · ΔE 26.7Rebecca purple · ΔE 27.4Cornflower blue · ΔE 30.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#966A1B
Analogous#1B8596, #2C1B96
Triadic#961B47, #47961B
Split complementary#962C1B, #85961B
Tetradic#961B85, #966A1B, #1B962C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#92B2EB
Lighter +30%#6693E4
Lighter +20%#3B75DC
Lighter +10%#235BC1
Darker −10%#13336B
Darker −20%#0B1E40
Darker −30%#040A14
Darker −40%#000000
More saturated +25%#0541AC
Less saturated −25%#314D80

Channel breakdown

R27
G71
B150
Red27 (10.6%)
Green71 (27.8%)
Blue150 (58.8%)
Hue218.54°
Saturation (HSL)69.49%
Lightness34.71%
Dominant channelBlue
Hex per channelR 1B · G 47 · B 96

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Every value on this page was computed from “1b4796” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.