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Colour

#3A4FCB

  • #3A4FCB
  • Blue
  • Dark
  • Nearest: Slate blue

#3A4FCB is a blue with RGB values 58, 79, 203 and HSL 231°, 58%, 51%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#3A4FCB#3A4FCB
HEX#3A4FCB
RGBrgb(58, 79, 203)
RGB (0–1)0.2275, 0.3098, 0.7961
RGB percentages22.7%, 31%, 79.6%
HSLhsl(231.3, 58.2%, 51.2%)
HSV / HSBhsv(231.3, 71.4%, 79.6%)
CMYK71.4%, 61.1%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,821,515
CSS custom property--colour: #3A4FCB;

Brightness & contrast

Relative luminance0.10803WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.64:1
Contrast with white6.64:1WCAG normal text: AA
Contrast with black3.16:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#C5B034

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063CFno red cones; affects about 1% of men; ΔE 16.7 from the original
Deuteranopia#0056C9no green cones; the most common form, about 1% of men; ΔE 9.5 from the original
Tritanopia#006F85no blue cones; rare, and affects men and women equally; ΔE 70.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.64:1WCAG large text: AAA
Contrast with black, large text3.16:1WCAG large text: AA

Named colours

Slate blue · ΔE 11Royal blue · ΔE 11.6Medium slateblue · ΔE 14.8Rebecca purple · ΔE 22.4Medium purple · ΔE 23Dark slateblue · ΔE 27.2
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 10.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CBB63A
Analogous#3A98CB, #6D3ACB
Triadic#CB3A4F, #4FCB3A
Split complementary#CB6D3A, #98CB3A
Tetradic#CB3A98, #CBB63A, #3ACB6D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBDFF6
Lighter +30%#B3BBEB
Lighter +20%#8B97E0
Lighter +10%#6273D6
Darker −10%#2C3EA6
Darker −20%#212F7E
Darker −30%#172055
Darker −40%#0C112D
More saturated +25%#1B39EA
Less saturated −25%#5965AC

Channel breakdown

R58
G79
B203
Red58 (22.7%)
Green79 (31%)
Blue203 (79.6%)
Hue231.31°
Saturation (HSL)58.23%
Lightness51.18%
Dominant channelBlue
Hex per channelR 3A · G 4F · B CB

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Every value on this page was computed from “3a4fcb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.