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Recognised as Colour

#2A42AE

  • #2A42AE
  • Blue
  • Dark
  • Nearest: Slate blue

#2A42AE is a blue with RGB values 42, 66, 174 and HSL 229°, 61%, 42%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#2A42AE#2A42AE
HEX#2A42AE
RGBrgb(42, 66, 174)
RGB (0–1)0.1647, 0.2588, 0.6824
RGB percentages16.5%, 25.9%, 68.2%
HSLhsl(229.1, 61.1%, 42.4%)
HSV / HSBhsv(229.1, 75.9%, 68.2%)
CMYK75.9%, 62.1%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,769,582
CSS custom property--colour: #2A42AE;

Brightness & contrast

Relative luminance0.07445WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.44:1
Contrast with white8.44:1WCAG normal text: AAA
Contrast with black2.49:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#D5BD51

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0053B2no red cones; affects about 1% of men; ΔE 13.8 from the original
Deuteranopia#0047ACno green cones; the most common form, about 1% of men; ΔE 7.1 from the original
Tritanopia#005E71no blue cones; rare, and affects men and women equally; ΔE 63 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.44:1WCAG large text: AAA
Contrast with black, large text2.49:1WCAG large text: Fail

Named colours

Slate blue · ΔE 14.2Royal blue · ΔE 16.3Rebecca purple · ΔE 18.4Dark slateblue · ΔE 18.6Midnight blue · ΔE 20.1Medium slateblue · ΔE 23
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 14.17, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AE962A
Analogous#2A84AE, #542AAE
Triadic#AE2A42, #42AE2A
Split complementary#AE542A, #84AE2A
Tetradic#AE2A84, #AE962A, #2AAE54

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B6C0EE
Lighter +30%#8D9DE4
Lighter +20%#647ADA
Lighter +10%#3B56D0
Darker −10%#203285
Darker −20%#16235C
Darker −30%#0C1333
Darker −40%#02040A
More saturated +25%#0F31C9
Less saturated −25%#455393

Channel breakdown

R42
G66
B174
Red42 (16.5%)
Green66 (25.9%)
Blue174 (68.2%)
Hue229.09°
Saturation (HSL)61.11%
Lightness42.35%
Dominant channelBlue
Hex per channelR 2A · G 42 · B AE

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Every value on this page was computed from “2a42ae” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.