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Recognised as Colour

#677DB1

  • #677DB1
  • Blue
  • Dark
  • Nearest: Steel blue

#677DB1 is a blue with RGB values 103, 125, 177 and HSL 222°, 32%, 55%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#677DB1#677DB1
HEX#677DB1
RGBrgb(103, 125, 177)
RGB (0–1)0.4039, 0.4902, 0.6941
RGB percentages40.4%, 49%, 69.4%
HSLhsl(222.2, 32.2%, 54.9%)
HSV / HSBhsv(222.2, 41.8%, 69.4%)
CMYK41.8%, 29.4%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,782,385
CSS custom property--colour: #677DB1;

Brightness & contrast

Relative luminance0.20725WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.15:1
Contrast with white4.08:1WCAG normal text: Fail
Contrast with black5.15:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#98824E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B81B3no red cones; affects about 1% of men; ΔE 2 from the original
Deuteranopia#637BB0no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#4E888Fno blue cones; rare, and affects men and women equally; ΔE 30.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.08:1WCAG large text: AA
Contrast with black, large text5.15:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10Light slate grey · ΔE 20.8Slate grey · ΔE 21Cornflower blue · ΔE 21.7Light steelblue · ΔE 30.6Gray · ΔE 30.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B19B67
Analogous#67A2B1, #7667B1
Triadic#B1677D, #7DB167
Split complementary#B17667, #A2B167
Tetradic#B167A2, #B19B67, #67B176

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEF0F6
Lighter +30%#CCD3E5
Lighter +20%#AAB7D4
Lighter +10%#899AC2
Darker −10%#4E6497
Darker −20%#3C4D76
Darker −30%#2B3754
Darker −40%#1A2132
More saturated +25%#4A71CE
Less saturated −25%#848994

Channel breakdown

R103
G125
B177
Red103 (40.4%)
Green125 (49%)
Blue177 (69.4%)
Hue222.16°
Saturation (HSL)32.17%
Lightness54.9%
Dominant channelBlue
Hex per channelR 67 · G 7D · B B1

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Every value on this page was computed from “677db1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.