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Recognised as Colour

#677FB5

  • #677FB5
  • Blue
  • Dark
  • Nearest: Steel blue

#677FB5 is a blue with RGB values 103, 127, 181 and HSL 222°, 35%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#677FB5#677FB5
HEX#677FB5
RGBrgb(103, 127, 181)
RGB (0–1)0.4039, 0.498, 0.7098
RGB percentages40.4%, 49.8%, 71%
HSLhsl(221.5, 34.5%, 55.7%)
HSV / HSBhsv(221.5, 43.1%, 71%)
CMYK43.1%, 29.8%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,782,901
CSS custom property--colour: #677FB5;

Brightness & contrast

Relative luminance0.21399WCAG 2.x, 0 is black and 1 is white
Perceived brightness128 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.28:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.28:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#98804A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C83B7no red cones; affects about 1% of men; ΔE 2 from the original
Deuteranopia#647CB4no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#4C8A92no blue cones; rare, and affects men and women equally; ΔE 31.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.28:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9.9Cornflower blue · ΔE 20.3Light slate grey · ΔE 21.8Slate grey · ΔE 22.1Light steelblue · ΔE 30.5Light skyblue · ΔE 31.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.86, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B59D67
Analogous#67A6B5, #7667B5
Triadic#B5677F, #7FB567
Split complementary#B57667, #A6B567
Tetradic#B567A6, #B59D67, #67B576

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F0F3F8
Lighter +30%#CED6E7
Lighter +20%#ACB9D6
Lighter +10%#899CC6
Darker −10%#4C659D
Darker −20%#3C4F7A
Darker −30%#2B3958
Darker −40%#1A2336
More saturated +25%#4B74D1
Less saturated −25%#838A99

Channel breakdown

R103
G127
B181
Red103 (40.4%)
Green127 (49.8%)
Blue181 (71%)
Hue221.54°
Saturation (HSL)34.51%
Lightness55.69%
Dominant channelBlue
Hex per channelR 67 · G 7F · B B5

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Every value on this page was computed from “677fb5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.