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Recognised as Colour

#28036E

  • #28036E
  • Violet
  • Dark
  • Nearest: Indigo

#28036E is a violet with RGB values 40, 3, 110 and HSL 261°, 95%, 22%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#28036E#28036E
HEX#28036E
RGBrgb(40, 3, 110)
RGB (0–1)0.1569, 0.0118, 0.4314
RGB percentages15.7%, 1.2%, 43.1%
HSLhsl(260.7, 94.7%, 22.2%)
HSV / HSBhsv(260.7, 97.3%, 43.1%)
CMYK63.6%, 97.3%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,622,318
CSS custom property--colour: #28036E;

Brightness & contrast

Relative luminance0.01642WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.81:1
Contrast with white15.81:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#D7FC91

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002571no red cones; affects about 1% of men; ΔE 21.8 from the original
Deuteranopia#001F6Cno green cones; the most common form, about 1% of men; ΔE 19.3 from the original
Tritanopia#00293Eno blue cones; rare, and affects men and women equally; ΔE 58.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.81:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Indigo · ΔE 11.4Midnight blue · ΔE 11.5Navy · ΔE 13.4Dark blue · ΔE 18.3Rebecca purple · ΔE 20.1Dark slateblue · ΔE 26.1
Nearest named CSS colourIndigo (#4B0082)ΔE 11.44, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#496E03
Analogous#03136E, #5E036E
Triadic#6E2803, #036E28
Split complementary#6E5E03, #136E03
Tetradic#6E0313, #496E03, #036E5E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8243FA
Lighter +30%#6111F9
Lighter +20%#4C06D1
Lighter +10%#3A04A0
Darker −10%#16023C
Darker −20%#04000B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#270071
Less saturated −25%#2C1160

Channel breakdown

R40
G3
B110
Red40 (15.7%)
Green3 (1.2%)
Blue110 (43.1%)
Hue260.75°
Saturation (HSL)94.69%
Lightness22.16%
Dominant channelBlue
Hex per channelR 28 · G 03 · B 6E

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Every value on this page was computed from “28036e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.