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Recognised as Colour

#28335C

  • #28335C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#28335C is a blue with RGB values 40, 51, 92 and HSL 227°, 39%, 26%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#28335C#28335C
HEX#28335C
RGBrgb(40, 51, 92)
RGB (0–1)0.1569, 0.2, 0.3608
RGB percentages15.7%, 20%, 36.1%
HSLhsl(227.3, 39.4%, 25.9%)
HSV / HSBhsv(227.3, 56.5%, 36.1%)
CMYK56.5%, 44.6%, 0%, 63.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,634,588
CSS custom property--colour: #28335C;

Brightness & contrast

Relative luminance0.03591WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.22:1
Contrast with white12.22:1WCAG normal text: AAA
Contrast with black1.72:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#D7CCA3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#22385Eno red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#1C335Bno green cones; the most common form, about 1% of men; ΔE 3.3 from the original
Tritanopia#0F3C43no blue cones; rare, and affects men and women equally; ΔE 27.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.22:1WCAG large text: AAA
Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.1Dark slate grey · ΔE 31.6Steel blue · ΔE 33.4Midnight blue · ΔE 33.5Dim grey · ΔE 35.3Black · ΔE 35.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.06, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5C5128
Analogous#284D5C, #37285C
Triadic#5C2833, #335C28
Split complementary#5C3728, #4D5C28
Tetradic#5C284D, #5C5128, #285C37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8694CA
Lighter +30%#6275BB
Lighter +20%#475AA3
Lighter +10%#374780
Darker −10%#191F38
Darker −20%#090C15
Darker −30%#000000
Darker −40%#000000
More saturated +25%#17296C
Less saturated −25%#383D4B

Channel breakdown

R40
G51
B92
Red40 (15.7%)
Green51 (20%)
Blue92 (36.1%)
Hue227.31°
Saturation (HSL)39.39%
Lightness25.88%
Dominant channelBlue
Hex per channelR 28 · G 33 · B 5C

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Every value on this page was computed from “28335c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.