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Colour

#3F61AF

  • #3F61AF
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3F61AF is a blue with RGB values 63, 97, 175 and HSL 222°, 47%, 47%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3F61AF#3F61AF
HEX#3F61AF
RGBrgb(63, 97, 175)
RGB (0–1)0.2471, 0.3804, 0.6863
RGB percentages24.7%, 38%, 68.6%
HSLhsl(221.8, 47.1%, 46.7%)
HSV / HSBhsv(221.8, 64%, 68.6%)
CMYK64%, 44.6%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,153,775
CSS custom property--colour: #3F61AF;

Brightness & contrast

Relative luminance0.12701WCAG 2.x, 0 is black and 1 is white
Perceived brightness101 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.93:1
Contrast with white5.93:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#C09E50

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3C69B2no red cones; affects about 1% of men; ΔE 5.5 from the original
Deuteranopia#2A5FADno green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#00737Fno blue cones; rare, and affects men and women equally; ΔE 47.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.93:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 17.6Cornflower blue · ΔE 20.4Steel blue · ΔE 23.9Royal blue · ΔE 24.5Dodgerblue · ΔE 25Slate blue · ΔE 26.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF8D3F
Analogous#3F99AF, #553FAF
Triadic#AF3F61, #61AF3F
Split complementary#AF553F, #99AF3F
Tetradic#AF3F99, #AF8D3F, #3FAF55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDD7ED
Lighter +30%#A7B8DF
Lighter +20%#829AD2
Lighter +10%#5D7CC4
Darker −10%#324C8A
Darker −20%#243764
Darker −30%#16233E
Darker −40%#090E19
More saturated +25%#2155CD
Less saturated −25%#5D6D91

Channel breakdown

R63
G97
B175
Red63 (24.7%)
Green97 (38%)
Blue175 (68.6%)
Hue221.79°
Saturation (HSL)47.06%
Lightness46.67%
Dominant channelBlue
Hex per channelR 3F · G 61 · B AF

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Every value on this page was computed from “3f61af” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.