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Colour

#0661FF

  • #0661FF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0661FF is a blue with RGB values 6, 97, 255 and HSL 218°, 100%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0661FF#0661FF
HEX#0661FF
RGBrgb(6, 97, 255)
RGB (0–1)0.0235, 0.3804, 1
RGB percentages2.4%, 38%, 100%
HSLhsl(218.1, 100%, 51.2%)
HSV / HSBhsv(218.1, 97.6%, 100%)
CMYK97.6%, 62%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer418,303
CSS custom property--colour: #0661FF;

Brightness & contrast

Relative luminance0.15808WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.05:1
Contrast with white5.05:1WCAG normal text: AA
Contrast with black4.16:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#F99E00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#007AFFno red cones; affects about 1% of men; ΔE 20.1 from the original
Deuteranopia#0064FCno green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#008BA7no blue cones; rare, and affects men and women equally; ΔE 85 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.05:1WCAG large text: AAA
Contrast with black, large text4.16:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 19.5Royal blue · ΔE 22.4Slate blue · ΔE 26.3Blue violet · ΔE 33Medium purple · ΔE 34.9Dark orchid · ΔE 35.9
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.51, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFA406
Analogous#06DDFF, #2806FF
Triadic#FF0661, #61FF06
Split complementary#FF2806, #DDFF06
Tetradic#FF06DD, #FFA406, #06FF28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2E2FF
Lighter +30%#9FC2FF
Lighter +20%#6CA2FF
Lighter +10%#3981FF
Darker −10%#004DD2
Darker −20%#003A9F
Darker −30%#00276C
Darker −40%#001539
More saturated +25%#0661FF
Less saturated −25%#2569E0

Channel breakdown

R6
G97
B255
Red6 (2.4%)
Green97 (38%)
Blue255 (100%)
Hue218.07°
Saturation (HSL)100%
Lightness51.18%
Dominant channelBlue
Hex per channelR 06 · G 61 · B FF

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Every value on this page was computed from “0661ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.