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Recognised as Colour

#37028F

  • #37028F
  • Violet
  • Dark
  • Nearest: Dark blue

#37028F is a violet with RGB values 55, 2, 143 and HSL 263°, 97%, 28%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#37028F#37028F
HEX#37028F
RGBrgb(55, 2, 143)
RGB (0–1)0.2157, 0.0078, 0.5608
RGB percentages21.6%, 0.8%, 56.1%
HSLhsl(262.6, 97.2%, 28.4%)
HSV / HSBhsv(262.6, 98.6%, 56.1%)
CMYK61.5%, 98.6%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,605,135
CSS custom property--colour: #37028F;

Brightness & contrast

Relative luminance0.02839WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.39:1
Contrast with white13.39:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#C8FD70

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003292no red cones; affects about 1% of men; ΔE 27.3 from the original
Deuteranopia#002B8Dno green cones; the most common form, about 1% of men; ΔE 24 from the original
Tritanopia#003752no blue cones; rare, and affects men and women equally; ΔE 71.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.39:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark blue · ΔE 7.4Navy · ΔE 8.2Indigo · ΔE 10.1Rebecca purple · ΔE 23.2Midnight blue · ΔE 25.2Dark orchid · ΔE 27.3
Nearest named CSS colourDark blue (#00008B)ΔE 7.35, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A8F02
Analogous#02138F, #7E028F
Triadic#8F3702, #028F37
Split complementary#8F7E02, #138F02
Tetradic#8F0213, #5A8F02, #028F7E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9B60FD
Lighter +30%#7B2EFC
Lighter +20%#5E03F4
Lighter +10%#4A03C1
Darker −10%#24015D
Darker −20%#10012A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#370091
Less saturated −25%#3B147D

Channel breakdown

R55
G2
B143
Red55 (21.6%)
Green2 (0.8%)
Blue143 (56.1%)
Hue262.55°
Saturation (HSL)97.24%
Lightness28.43%
Dominant channelBlue
Hex per channelR 37 · G 02 · B 8F

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Every value on this page was computed from “37028f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.