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Recognised as Colour

#281A68

  • #281A68
  • Blue
  • Dark
  • Nearest: Midnight blue

#281A68 is a blue with RGB values 40, 26, 104 and HSL 251°, 60%, 25%. It is a dark colour, so white text on it reaches 14.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#281A68#281A68
HEX#281A68
RGBrgb(40, 26, 104)
RGB (0–1)0.1569, 0.102, 0.4078
RGB percentages15.7%, 10.2%, 40.8%
HSLhsl(250.8, 60%, 25.5%)
HSV / HSBhsv(250.8, 75%, 40.8%)
CMYK61.5%, 75%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,628,200
CSS custom property--colour: #281A68;

Brightness & contrast

Relative luminance0.02189WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.6:1
Contrast with white14.6:1WCAG normal text: AAA
Contrast with black1.44:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#D7E597

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002B6Ano red cones; affects about 1% of men; ΔE 16.2 from the original
Deuteranopia#002667no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#042F3Fno blue cones; rare, and affects men and women equally; ΔE 47.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.6:1WCAG large text: AAA
Contrast with black, large text1.44:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 6.4Dark slateblue · ΔE 15Rebecca purple · ΔE 21.1Indigo · ΔE 24Navy · ΔE 27.7Purple · ΔE 32.4
Nearest named CSS colourMidnight blue (#191970)ΔE 6.44, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A681A
Analogous#1A3368, #4F1A68
Triadic#68281A, #1A6828
Split complementary#684F1A, #33681A
Tetradic#681A33, #5A681A, #1A684F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8572DC
Lighter +30%#6249D2
Lighter +20%#472EBA
Lighter +10%#382491
Darker −10%#18103F
Darker −20%#090616
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1E0A78
Less saturated −25%#322A58

Channel breakdown

R40
G26
B104
Red40 (15.7%)
Green26 (10.2%)
Blue104 (40.8%)
Hue250.77°
Saturation (HSL)60%
Lightness25.49%
Dominant channelBlue
Hex per channelR 28 · G 1A · B 68

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Every value on this page was computed from “281a68” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.