Nerdulator> put something in

Recognised as Colour

#280F48

  • #280F48
  • Violet
  • Dark
  • Nearest: Midnight blue

#280F48 is a violet with RGB values 40, 15, 72 and HSL 266°, 66%, 17%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#280F48#280F48
HEX#280F48
RGBrgb(40, 15, 72)
RGB (0–1)0.1569, 0.0588, 0.2824
RGB percentages15.7%, 5.9%, 28.2%
HSLhsl(266.3, 65.5%, 17.1%)
HSV / HSBhsv(266.3, 79.2%, 28.2%)
CMYK44.4%, 79.2%, 0%, 71.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,625,352
CSS custom property--colour: #280F48;

Brightness & contrast

Relative luminance0.01261WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.77:1
Contrast with white16.77:1WCAG normal text: AAA
Contrast with black1.25:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#D7F0B7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001D4Ano red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#001D47no green cones; the most common form, about 1% of men; ΔE 17.6 from the original
Tritanopia#201D2Ano blue cones; rare, and affects men and women equally; ΔE 31.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.77:1WCAG large text: AAA
Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 20.3Dark slateblue · ΔE 22.9Rebecca purple · ΔE 32Indigo · ΔE 35.2Purple · ΔE 38Navy · ΔE 40.1
Nearest named CSS colourMidnight blue (#191970)ΔE 20.25, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2F480F
Analogous#0F1348, #440F48
Triadic#48280F, #0F4828
Split complementary#48450F, #12480F
Tetradic#480F13, #2F480F, #0F4844

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#894AD9
Lighter +30%#6E29C7
Lighter +20%#57219C
Lighter +10%#3F1872
Darker −10%#11061E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#270453
Less saturated −25%#291A3D

Channel breakdown

R40
G15
B72
Red40 (15.7%)
Green15 (5.9%)
Blue72 (28.2%)
Hue266.32°
Saturation (HSL)65.52%
Lightness17.06%
Dominant channelBlue
Hex per channelR 28 · G 0F · B 48

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “280f48” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.