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Recognised as Colour

#39337F

  • #39337F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#39337F is a blue with RGB values 57, 51, 127 and HSL 245°, 43%, 35%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#39337F#39337F
HEX#39337F
RGBrgb(57, 51, 127)
RGB (0–1)0.2235, 0.2, 0.498
RGB percentages22.4%, 20%, 49.8%
HSLhsl(244.7, 42.7%, 34.9%)
HSV / HSBhsv(244.7, 59.8%, 49.8%)
CMYK55.1%, 59.8%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,748,735
CSS custom property--colour: #39337F;

Brightness & contrast

Relative luminance0.0477WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.75:1
Contrast with white10.75:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#C6CC80

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004082no red cones; affects about 1% of men; ΔE 15.3 from the original
Deuteranopia#003B7Dno green cones; the most common form, about 1% of men; ΔE 13.9 from the original
Tritanopia#1B4554no blue cones; rare, and affects men and women equally; ΔE 45.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.75:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 4.8Midnight blue · ΔE 14.1Rebecca purple · ΔE 19.5Slate blue · ΔE 26.9Indigo · ΔE 29.2Royal blue · ΔE 31.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 4.84, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#797F33
Analogous#33537F, #5F337F
Triadic#7F3933, #337F39
Split complementary#7F5F33, #537F33
Tetradic#7F3353, #797F33, #337F5F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A8A4DA
Lighter +30%#857FCC
Lighter +20%#635BBD
Lighter +10%#4942A3
Darker −10%#29245B
Darker −20%#181636
Darker −30%#080712
Darker −40%#000000
More saturated +25%#261D95
Less saturated −25%#4C4969

Channel breakdown

R57
G51
B127
Red57 (22.4%)
Green51 (20%)
Blue127 (49.8%)
Hue244.74°
Saturation (HSL)42.7%
Lightness34.9%
Dominant channelBlue
Hex per channelR 39 · G 33 · B 7F

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Every value on this page was computed from “39337f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.