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Recognised as Colour

#1A478B

  • #1A478B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1A478B is a blue with RGB values 26, 71, 139 and HSL 216°, 68%, 32%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1A478B#1A478B
HEX#1A478B
RGBrgb(26, 71, 139)
RGB (0–1)0.102, 0.2784, 0.5451
RGB percentages10.2%, 27.8%, 54.5%
HSLhsl(216.1, 68.5%, 32.4%)
HSV / HSBhsv(216.1, 81.3%, 54.5%)
CMYK81.3%, 48.9%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,722,251
CSS custom property--colour: #1A478B;

Brightness & contrast

Relative luminance0.0659WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.06:1
Contrast with white9.06:1WCAG normal text: AAA
Contrast with black2.32:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#E5B874

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#214E8Eno red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#00448Ano green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#005762no blue cones; rare, and affects men and women equally; ΔE 41.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.06:1WCAG large text: AAA
Contrast with black, large text2.32:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.1Midnight blue · ΔE 26.7Steel blue · ΔE 28.2Cornflower blue · ΔE 31.9Rebecca purple · ΔE 32.4Royal blue · ΔE 32.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B5E1A
Analogous#1A7F8B, #251A8B
Triadic#8B1A47, #478B1A
Split complementary#8B261A, #7F8B1A
Tetradic#8B1A80, #8B5E1A, #1A8B26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#88AFE9
Lighter +30%#5D92E1
Lighter +20%#3275D9
Lighter +10%#225DB6
Darker −10%#123160
Darker −20%#0A1B35
Darker −30%#02050A
Darker −40%#000000
More saturated +25%#0543A0
Less saturated −25%#2F4B76

Channel breakdown

R26
G71
B139
Red26 (10.2%)
Green71 (27.8%)
Blue139 (54.5%)
Hue216.11°
Saturation (HSL)68.48%
Lightness32.35%
Dominant channelBlue
Hex per channelR 1A · G 47 · B 8B

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Every value on this page was computed from “1a478b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.