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Colour

#321A57

  • #321A57
  • Violet
  • Dark
  • Nearest: Dark slateblue

#321A57 is a violet with RGB values 50, 26, 87 and HSL 264°, 54%, 22%. It is a dark colour, so white text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#321A57#321A57
HEX#321A57
RGBrgb(50, 26, 87)
RGB (0–1)0.1961, 0.102, 0.3412
RGB percentages19.6%, 10.2%, 34.1%
HSLhsl(263.6, 54%, 22.2%)
HSV / HSBhsv(263.6, 70.1%, 34.1%)
CMYK42.5%, 70.1%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,283,543
CSS custom property--colour: #321A57;

Brightness & contrast

Relative luminance0.02105WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.78:1
Contrast with white14.78:1WCAG normal text: AAA
Contrast with black1.42:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#CDE5A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002859no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#002756no green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#292836no blue cones; rare, and affects men and women equally; ΔE 32.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.78:1WCAG large text: AAA
Contrast with black, large text1.42:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.6Midnight blue · ΔE 17.6Rebecca purple · ΔE 27.5Indigo · ΔE 32.7Purple · ΔE 35.2Navy · ΔE 38.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.55, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F571A
Analogous#1A2057, #511A57
Triadic#57321A, #1A5732
Split complementary#57511A, #20571A
Tetradic#571A20, #3F571A, #1A5751

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#936AD3
Lighter +30%#7743C7
Lighter +20%#5F31A6
Lighter +10%#49267E
Darker −10%#1B0E30
Darker −20%#050308
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F0C65
Less saturated −25%#352849

Channel breakdown

R50
G26
B87
Red50 (19.6%)
Green26 (10.2%)
Blue87 (34.1%)
Hue263.61°
Saturation (HSL)53.98%
Lightness22.16%
Dominant channelBlue
Hex per channelR 32 · G 1A · B 57

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Every value on this page was computed from “321a57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.