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Recognised as Colour

#280AAF

  • #280AAF
  • Blue
  • Dark
  • Nearest: Dark blue

#280AAF is a blue with RGB values 40, 10, 175 and HSL 251°, 89%, 36%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#280AAF#280AAF
HEX#280AAF
RGBrgb(40, 10, 175)
RGB (0–1)0.1569, 0.0392, 0.6863
RGB percentages15.7%, 3.9%, 68.6%
HSLhsl(250.9, 89.2%, 36.3%)
HSV / HSBhsv(250.9, 94.3%, 68.6%)
CMYK77.1%, 94.3%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,624,175
CSS custom property--colour: #280AAF;

Brightness & contrast

Relative luminance0.03763WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.98:1
Contrast with white11.98:1WCAG normal text: AAA
Contrast with black1.75:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#D7F550

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003DB3no red cones; affects about 1% of men; ΔE 28.8 from the original
Deuteranopia#002FADno green cones; the most common form, about 1% of men; ΔE 20.6 from the original
Tritanopia#004866no blue cones; rare, and affects men and women equally; ΔE 85.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.98:1WCAG large text: AAA
Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark blue · ΔE 14Medium blue · ΔE 17.2Navy · ΔE 19.1Blue violet · ΔE 22.8Indigo · ΔE 24.8Dark violet · ΔE 25.8
Nearest named CSS colourDark blue (#00008B)ΔE 13.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#91AF0A
Analogous#0A3FAF, #7A0AAF
Triadic#AF280A, #0AAF28
Split complementary#AF7A0A, #3FAF0A
Tetradic#AF0A3F, #91AF0A, #0AAF7A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A08DF8
Lighter +30%#785CF6
Lighter +20%#502CF3
Lighter +10%#330DDF
Darker −10%#1D077F
Darker −20%#12044F
Darker −30%#07021E
Darker −40%#000000
More saturated +25%#2200B9
Less saturated −25%#372198

Channel breakdown

R40
G10
B175
Red40 (15.7%)
Green10 (3.9%)
Blue175 (68.6%)
Hue250.91°
Saturation (HSL)89.19%
Lightness36.27%
Dominant channelBlue
Hex per channelR 28 · G 0A · B AF

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