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Recognised as Colour

#678AFF

  • #678AFF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#678AFF is a blue with RGB values 103, 138, 255 and HSL 226°, 100%, 70%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#678AFF#678AFF
HEX#678AFF
RGBrgb(103, 138, 255)
RGB (0–1)0.4039, 0.5412, 1
RGB percentages40.4%, 54.1%, 100%
HSLhsl(226.2, 100%, 70.2%)
HSV / HSBhsv(226.2, 59.6%, 100%)
CMYK59.6%, 45.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,785,791
CSS custom property--colour: #678AFF;

Brightness & contrast

Relative luminance0.28281WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.66:1
Contrast with white3.15:1WCAG normal text: Fail
Contrast with black6.66:1WCAG normal text: AA
Greyscale equivalent#8B8B8B
Inverted#987500

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5198FFno red cones; affects about 1% of men; ΔE 13 from the original
Deuteranopia#398BFDno green cones; the most common form, about 1% of men; ΔE 8.3 from the original
Tritanopia#00A4B8no blue cones; rare, and affects men and women equally; ΔE 65.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.15:1WCAG large text: AA
Contrast with black, large text6.66:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 12.4Royal blue · ΔE 13.3Cornflower blue · ΔE 18.2Medium purple · ΔE 19.5Slate blue · ΔE 20.7Medium slateblue · ΔE 20.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 12.4, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFDC67
Analogous#67D6FF, #9067FF
Triadic#FF678A, #8AFF67
Split complementary#FF9067, #D6FF67
Tetradic#FF67D6, #FFDC67, #67FF90

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CDD9FF
Lighter +10%#9AB1FF
Darker −10%#3463FF
Darker −20%#013BFF
Darker −30%#002FCD
Darker −40%#00239A
More saturated +25%#678AFF
Less saturated −25%#7A94EC

Channel breakdown

R103
G138
B255
Red103 (40.4%)
Green138 (54.1%)
Blue255 (100%)
Hue226.18°
Saturation (HSL)100%
Lightness70.2%
Dominant channelBlue
Hex per channelR 67 · G 8A · B FF

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Every value on this page was computed from “678aff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.