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Colour

#280F67

  • #280F67
  • Violet
  • Dark
  • Nearest: Midnight blue

#280F67 is a violet with RGB values 40, 15, 103 and HSL 257°, 75%, 23%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#280F67#280F67
HEX#280F67
RGBrgb(40, 15, 103)
RGB (0–1)0.1569, 0.0588, 0.4039
RGB percentages15.7%, 5.9%, 40.4%
HSLhsl(257, 74.6%, 23.1%)
HSV / HSBhsv(257, 85.4%, 40.4%)
CMYK61.2%, 85.4%, 0%, 59.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,625,383
CSS custom property--colour: #280F67;

Brightness & contrast

Relative luminance0.01772WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.5:1
Contrast with white15.5:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#D7F098

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002669no red cones; affects about 1% of men; ΔE 18.8 from the original
Deuteranopia#002165no green cones; the most common form, about 1% of men; ΔE 16.6 from the original
Tritanopia#072A3Cno blue cones; rare, and affects men and women equally; ΔE 51.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.5:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.5Indigo · ΔE 18.4Dark slateblue · ΔE 19.7Rebecca purple · ΔE 19.9Navy · ΔE 21.8Dark blue · ΔE 26.7
Nearest named CSS colourMidnight blue (#191970)ΔE 5.54, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E670F
Analogous#0F2267, #540F67
Triadic#67280F, #0F6728
Split complementary#67540F, #22670F
Tetradic#670F22, #4E670F, #0F6754

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#835BE7
Lighter +30%#612EE1
Lighter +20%#4B1CC0
Lighter +10%#391594
Darker −10%#17093A
Darker −20%#05020E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#220076
Less saturated −25%#2E1E58

Channel breakdown

R40
G15
B103
Red40 (15.7%)
Green15 (5.9%)
Blue103 (40.4%)
Hue257.05°
Saturation (HSL)74.58%
Lightness23.14%
Dominant channelBlue
Hex per channelR 28 · G 0F · B 67

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Every value on this page was computed from “280f67” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.