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Recognised as Colour

#1A3879

  • #1A3879
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1A3879 is a blue with RGB values 26, 56, 121 and HSL 221°, 65%, 29%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1A3879#1A3879
HEX#1A3879
RGBrgb(26, 56, 121)
RGB (0–1)0.102, 0.2196, 0.4745
RGB percentages10.2%, 22%, 47.5%
HSLhsl(221.1, 64.6%, 28.8%)
HSV / HSBhsv(221.1, 78.5%, 47.5%)
CMYK78.5%, 53.7%, 0%, 52.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,718,393
CSS custom property--colour: #1A3879;

Brightness & contrast

Relative luminance0.04428WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.14:1
Contrast with white11.14:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#E5C786

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0D407Bno red cones; affects about 1% of men; ΔE 6.9 from the original
Deuteranopia#003778no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#004853no blue cones; rare, and affects men and women equally; ΔE 40.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.14:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.5Midnight blue · ΔE 22Rebecca purple · ΔE 30.7Steel blue · ΔE 33.9Slate blue · ΔE 34.7Royal blue · ΔE 35.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#795B1A
Analogous#1A6779, #2C1A79
Triadic#791A38, #38791A
Split complementary#792C1A, #67791A
Tetradic#791A67, #795B1A, #1A792C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7C9DE3
Lighter +30%#527DDA
Lighter +20%#2C5FCD
Lighter +10%#234BA3
Darker −10%#11254F
Darker −20%#081125
Darker −30%#000000
Darker −40%#000000
More saturated +25%#08318B
Less saturated −25%#2C3F67

Channel breakdown

R26
G56
B121
Red26 (10.2%)
Green56 (22%)
Blue121 (47.5%)
Hue221.05°
Saturation (HSL)64.63%
Lightness28.82%
Dominant channelBlue
Hex per channelR 1A · G 38 · B 79

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Every value on this page was computed from “1a3879” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.