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Colour

#678CB2

  • #678CB2
  • Blue
  • Dark
  • Nearest: Steel blue

#678CB2 is a blue with RGB values 103, 140, 178 and HSL 210°, 33%, 55%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#678CB2#678CB2
HEX#678CB2
RGBrgb(103, 140, 178)
RGB (0–1)0.4039, 0.549, 0.698
RGB percentages40.4%, 54.9%, 69.8%
HSLhsl(210.4, 32.8%, 55.1%)
HSV / HSBhsv(210.4, 42.1%, 69.8%)
CMYK42.1%, 21.3%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,786,226
CSS custom property--colour: #678CB2;

Brightness & contrast

Relative luminance0.24854WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.97:1
Contrast with white3.52:1WCAG normal text: Fail
Contrast with black5.97:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#98734D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7D8DB4no red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#7485B1no green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#4B9599no blue cones; rare, and affects men and women equally; ΔE 24.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.52:1WCAG large text: AA
Contrast with black, large text5.97:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9.4Light slate grey · ΔE 12.9Slate grey · ΔE 14Light steelblue · ΔE 23.3Cadetblue · ΔE 24.1Gray · ΔE 24.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.43, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B28D67
Analogous#67B2B2, #6767B2
Triadic#B2678C, #8CB267
Split complementary#B26767, #B2B267
Tetradic#B267B2, #B28D67, #67B268

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEF2F7
Lighter +30%#CDD9E5
Lighter +20%#ABBFD4
Lighter +10%#89A6C3
Darker −10%#4D7299
Darker −20%#3C5977
Darker −30%#2B4055
Darker −40%#1A2633
More saturated +25%#4A8CCF
Less saturated −25%#848C95

Channel breakdown

R103
G140
B178
Red103 (40.4%)
Green140 (54.9%)
Blue178 (69.8%)
Hue210.4°
Saturation (HSL)32.75%
Lightness55.1%
Dominant channelBlue
Hex per channelR 67 · G 8C · B B2

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Every value on this page was computed from “678cb2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.