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Recognised as Colour

#3A258A

  • #3A258A
  • Blue
  • Dark
  • Nearest: Midnight blue

#3A258A is a blue with RGB values 58, 37, 138 and HSL 252°, 58%, 34%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#3A258A#3A258A
HEX#3A258A
RGBrgb(58, 37, 138)
RGB (0–1)0.2275, 0.1451, 0.5412
RGB percentages22.7%, 14.5%, 54.1%
HSLhsl(252.5, 57.7%, 34.3%)
HSV / HSBhsv(252.5, 73.2%, 54.1%)
CMYK58%, 73.2%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,810,698
CSS custom property--colour: #3A258A;

Brightness & contrast

Relative luminance0.04058WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.59:1
Contrast with white11.59:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#C5DA75

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003C8Dno red cones; affects about 1% of men; ΔE 20.7 from the original
Deuteranopia#003688no green cones; the most common form, about 1% of men; ΔE 18.3 from the original
Tritanopia#124055no blue cones; rare, and affects men and women equally; ΔE 57.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.59:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.5Rebecca purple · ΔE 11.9Indigo · ΔE 14.4Dark slateblue · ΔE 17.3Navy · ΔE 18.8Slate blue · ΔE 22.1
Nearest named CSS colourMidnight blue (#191970)ΔE 10.52, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#758A25
Analogous#25428A, #6D258A
Triadic#8A3A25, #258A3A
Split complementary#8A6D25, #428A25
Tetradic#8A2542, #758A25, #258A6D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A798E3
Lighter +30%#856FD9
Lighter +20%#6347CE
Lighter +10%#4B30B2
Darker −10%#291A62
Darker −20%#180F3A
Darker −30%#070511
Darker −40%#000000
More saturated +25%#2D0FA0
Less saturated −25%#473B74

Channel breakdown

R58
G37
B138
Red58 (22.7%)
Green37 (14.5%)
Blue138 (54.1%)
Hue252.48°
Saturation (HSL)57.71%
Lightness34.31%
Dominant channelBlue
Hex per channelR 3A · G 25 · B 8A

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Every value on this page was computed from “3a258a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.