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Recognised as Colour

#281EFF

  • #281EFF
  • Blue
  • Dark
  • Nearest: Blue

#281EFF is a blue with RGB values 40, 30, 255 and HSL 243°, 100%, 56%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#281EFF#281EFF
HEX#281EFF
RGBrgb(40, 30, 255)
RGB (0–1)0.1569, 0.1176, 1
RGB percentages15.7%, 11.8%, 100%
HSLhsl(242.7, 100%, 55.9%)
HSV / HSBhsv(242.7, 88.2%, 100%)
CMYK84.3%, 88.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,629,375
CSS custom property--colour: #281EFF;

Brightness & contrast

Relative luminance0.086WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.72:1
Contrast with white7.72:1WCAG normal text: AAA
Contrast with black2.72:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#D7E100

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005EFFno red cones; affects about 1% of men; ΔE 39.3 from the original
Deuteranopia#0046FCno green cones; the most common form, about 1% of men; ΔE 22.9 from the original
Tritanopia#006F98no blue cones; rare, and affects men and women equally; ΔE 112.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.72:1WCAG large text: AAA
Contrast with black, large text2.72:1WCAG large text: Fail

Named colours

Blue · ΔE 7.9Medium blue · ΔE 16.7Blue violet · ΔE 29.3Dark violet · ΔE 33Dark orchid · ΔE 44.5Dark blue · ΔE 46.2
Nearest named CSS colourBlue (#0000FF)ΔE 7.94, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F5FF1E
Analogous#1E85FF, #981EFF
Triadic#FF281E, #1EFF28
Split complementary#FF981E, #85FF1E
Tetradic#FF1E85, #F5FF1E, #1EFF98

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBEAFF
Lighter +30%#BAB7FF
Lighter +20%#8984FF
Lighter +10%#5951FF
Darker −10%#0A00EA
Darker −20%#0800B7
Darker −30%#060084
Darker −40%#040051
More saturated +25%#281EFF
Less saturated −25%#423AE3

Channel breakdown

R40
G30
B255
Red40 (15.7%)
Green30 (11.8%)
Blue255 (100%)
Hue242.67°
Saturation (HSL)100%
Lightness55.88%
Dominant channelBlue
Hex per channelR 28 · G 1E · B FF

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Every value on this page was computed from “281eff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.