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Recognised as Colour

#4666FD

  • #4666FD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#4666FD is a blue with RGB values 70, 102, 253 and HSL 230°, 98%, 63%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#4666FD#4666FD
HEX#4666FD
RGBrgb(70, 102, 253)
RGB (0–1)0.2745, 0.4, 0.9922
RGB percentages27.5%, 40%, 99.2%
HSLhsl(229.5, 97.9%, 63.3%)
HSV / HSBhsv(229.5, 72.3%, 99.2%)
CMYK72.3%, 59.7%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,613,885
CSS custom property--colour: #4666FD;

Brightness & contrast

Relative luminance0.17897WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.59:1
Contrast with white4.59:1WCAG normal text: AA
Contrast with black4.58:1WCAG normal text: AA
Greyscale equivalent#6A6A6A
Inverted#B99902

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#007EFFno red cones; affects about 1% of men; ΔE 20.3 from the original
Deuteranopia#006DFAno green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#008CA8no blue cones; rare, and affects men and women equally; ΔE 81.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.59:1WCAG large text: AAA
Contrast with black, large text4.58:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 13.6Royal blue · ΔE 18.1Slate blue · ΔE 21.2Medium purple · ΔE 29Blue violet · ΔE 32.3Dark orchid · ΔE 32.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 13.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDDD46
Analogous#46C1FD, #8246FD
Triadic#FD4666, #66FD46
Split complementary#FD8246, #C1FD46
Tetradic#FD46C1, #FDDD46, #46FD82

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DDE3FF
Lighter +20%#ABB9FE
Lighter +10%#7890FE
Darker −10%#143CFC
Darker −20%#0228DB
Darker −30%#021FA8
Darker −40%#011676
More saturated +25%#4465FF
Less saturated −25%#5D75E6

Channel breakdown

R70
G102
B253
Red70 (27.5%)
Green102 (40%)
Blue253 (99.2%)
Hue229.51°
Saturation (HSL)97.86%
Lightness63.33%
Dominant channelBlue
Hex per channelR 46 · G 66 · B FD

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Every value on this page was computed from “4666fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.