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Recognised as Colour

#677BC4

  • #677BC4
  • Blue
  • Dark
  • Nearest: Cornflower blue

#677BC4 is a blue with RGB values 103, 123, 196 and HSL 227°, 44%, 59%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#677BC4#677BC4
HEX#677BC4
RGBrgb(103, 123, 196)
RGB (0–1)0.4039, 0.4824, 0.7686
RGB percentages40.4%, 48.2%, 76.9%
HSLhsl(227.1, 44.1%, 58.6%)
HSV / HSBhsv(227.1, 47.4%, 76.9%)
CMYK47.4%, 37.2%, 0%, 23.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,781,892
CSS custom property--colour: #677BC4;

Brightness & contrast

Relative luminance0.21035WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.21:1
Contrast with white4.03:1WCAG normal text: Fail
Contrast with black5.21:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#98843B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6083C7no red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#577BC2no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#438A96no blue cones; rare, and affects men and women equally; ΔE 41.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.03:1WCAG large text: AA
Contrast with black, large text5.21:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 13Steel blue · ΔE 18.6Dodgerblue · ΔE 24Dark slateblue · ΔE 26Medium purple · ΔE 26.2Royal blue · ΔE 28.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 13.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C4B067
Analogous#67A9C4, #8267C4
Triadic#C4677B, #7BC467
Split complementary#C48267, #A9C467
Tetradic#C467A9, #C4B067, #67C482

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FAFBFD
Lighter +30%#D5DBEF
Lighter +20%#B0BBE1
Lighter +10%#8C9BD2
Darker −10%#455DB3
Darker −20%#374A8E
Darker −30%#293769
Darker −40%#1B2444
More saturated +25%#4D6CDE
Less saturated −25%#818AAA

Channel breakdown

R103
G123
B196
Red103 (40.4%)
Green123 (48.2%)
Blue196 (76.9%)
Hue227.1°
Saturation (HSL)44.08%
Lightness58.63%
Dominant channelBlue
Hex per channelR 67 · G 7B · B C4

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Every value on this page was computed from “677bc4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.