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Recognised as Colour

#2B0737

  • #2B0737
  • Violet
  • Dark
  • Nearest: Midnight blue

#2B0737 is a violet with RGB values 43, 7, 55 and HSL 285°, 77%, 12%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#2B0737#2B0737
HEX#2B0737
RGBrgb(43, 7, 55)
RGB (0–1)0.1686, 0.0275, 0.2157
RGB percentages16.9%, 2.7%, 21.6%
HSLhsl(285, 77.4%, 12.2%)
HSV / HSBhsv(285, 87.3%, 21.6%)
CMYK21.8%, 87.3%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,819,895
CSS custom property--colour: #2B0737;

Brightness & contrast

Relative luminance0.00941WCAG 2.x, 0 is black and 1 is white
Perceived brightness30.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.67:1
Contrast with white17.67:1WCAG normal text: AAA
Contrast with black1.19:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#D4F8C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001638no red cones; affects about 1% of men; ΔE 19.7 from the original
Deuteranopia#071936no green cones; the most common form, about 1% of men; ΔE 21.6 from the original
Tritanopia#2A111Eno blue cones; rare, and affects men and women equally; ΔE 22.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.67:1WCAG large text: AAA
Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 28.4Dark slateblue · ΔE 29.7Black · ΔE 36Rebecca purple · ΔE 38.2Purple · ΔE 41Indigo · ΔE 41.4
Nearest named CSS colourMidnight blue (#191970)ΔE 28.43, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#133707
Analogous#130737, #37072B
Triadic#372B07, #07372B
Split complementary#2B3707, #073713
Tetradic#371307, #133707, #072B37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B427E3
Lighter +30%#9518BF
Lighter +20%#721391
Lighter +10%#4E0D64
Darker −10%#08010A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2F003E
Less saturated −25%#270F2F

Channel breakdown

R43
G7
B55
Red43 (16.9%)
Green7 (2.7%)
Blue55 (21.6%)
Hue285°
Saturation (HSL)77.42%
Lightness12.16%
Dominant channelBlue
Hex per channelR 2B · G 07 · B 37

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Every value on this page was computed from “2b0737” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.