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Recognised as Colour

#3A57DF

  • #3A57DF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3A57DF is a blue with RGB values 58, 87, 223 and HSL 229°, 72%, 55%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3A57DF#3A57DF
HEX#3A57DF
RGBrgb(58, 87, 223)
RGB (0–1)0.2275, 0.3412, 0.8745
RGB percentages22.7%, 34.1%, 87.5%
HSLhsl(229.5, 72.1%, 55.1%)
HSV / HSBhsv(229.5, 74%, 87.5%)
CMYK74%, 61%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,823,583
CSS custom property--colour: #3A57DF;

Brightness & contrast

Relative luminance0.13044WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.82:1
Contrast with white5.82:1WCAG normal text: AA
Contrast with black3.61:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#C5A820

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006DE3no red cones; affects about 1% of men; ΔE 17.7 from the original
Deuteranopia#005EDCno green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#007A93no blue cones; rare, and affects men and women equally; ΔE 75.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.82:1WCAG large text: AAA
Contrast with black, large text3.61:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 12.6Royal blue · ΔE 13Slate blue · ΔE 14.7Medium purple · ΔE 25.3Rebecca purple · ΔE 27.9Dark orchid · ΔE 31.6
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 12.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DFC23A
Analogous#3AA9DF, #703ADF
Triadic#DF3A57, #57DF3A
Split complementary#DF6F3A, #AADF3A
Tetradic#DF3AA9, #DFC23A, #3ADF6F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9EDFC
Lighter +30%#BEC7F4
Lighter +20%#92A2ED
Lighter +10%#667CE6
Darker −10%#203DC6
Darker −20%#19309A
Darker −30%#12226E
Darker −40%#0B1542
More saturated +25%#1D44FC
Less saturated −25%#576AC2

Channel breakdown

R58
G87
B223
Red58 (22.7%)
Green87 (34.1%)
Blue223 (87.5%)
Hue229.45°
Saturation (HSL)72.05%
Lightness55.1%
Dominant channelBlue
Hex per channelR 3A · G 57 · B DF

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Every value on this page was computed from “3a57df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.