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Recognised as Colour

#3A238B

  • #3A238B
  • Blue
  • Dark
  • Nearest: Midnight blue

#3A238B is a blue with RGB values 58, 35, 139 and HSL 253°, 60%, 34%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#3A238B#3A238B
HEX#3A238B
RGBrgb(58, 35, 139)
RGB (0–1)0.2275, 0.1373, 0.5451
RGB percentages22.7%, 13.7%, 54.5%
HSLhsl(253.3, 59.8%, 34.1%)
HSV / HSBhsv(253.3, 74.8%, 54.5%)
CMYK58.3%, 74.8%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,810,187
CSS custom property--colour: #3A238B;

Brightness & contrast

Relative luminance0.03966WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.71:1
Contrast with white11.71:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#C5DC74

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003B8Eno red cones; affects about 1% of men; ΔE 21 from the original
Deuteranopia#003589no green cones; the most common form, about 1% of men; ΔE 18.6 from the original
Tritanopia#113F55no blue cones; rare, and affects men and women equally; ΔE 58.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.71:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.6Rebecca purple · ΔE 12.2Indigo · ΔE 12.9Navy · ΔE 17.2Dark slateblue · ΔE 19.1Dark blue · ΔE 20.5
Nearest named CSS colourMidnight blue (#191970)ΔE 11.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#748B23
Analogous#23408B, #6E238B
Triadic#8B3A23, #238B3A
Split complementary#8B6E23, #408B23
Tetradic#8B2340, #748B23, #238B6E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A796E4
Lighter +30%#856DDA
Lighter +20%#6344D0
Lighter +10%#4B2DB4
Darker −10%#291962
Darker −20%#180E3A
Darker −30%#070411
Darker −40%#000000
More saturated +25%#2E0DA1
Less saturated −25%#463975

Channel breakdown

R58
G35
B139
Red58 (22.7%)
Green35 (13.7%)
Blue139 (54.5%)
Hue253.27°
Saturation (HSL)59.77%
Lightness34.12%
Dominant channelBlue
Hex per channelR 3A · G 23 · B 8B

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Every value on this page was computed from “3a238b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.