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Recognised as Colour

#667EB5

  • #667EB5
  • Blue
  • Dark
  • Nearest: Steel blue

#667EB5 is a blue with RGB values 102, 126, 181 and HSL 222°, 35%, 55%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#667EB5#667EB5
HEX#667EB5
RGBrgb(102, 126, 181)
RGB (0–1)0.4, 0.4941, 0.7098
RGB percentages40%, 49.4%, 71%
HSLhsl(221.8, 34.8%, 55.5%)
HSV / HSBhsv(221.8, 43.6%, 71%)
CMYK43.6%, 30.4%, 0%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,717,109
CSS custom property--colour: #667EB5;

Brightness & contrast

Relative luminance0.21083WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.22:1
Contrast with white4.03:1WCAG normal text: Fail
Contrast with black5.22:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#99814A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6A83B7no red cones; affects about 1% of men; ΔE 2.7 from the original
Deuteranopia#627BB4no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#4A8992no blue cones; rare, and affects men and women equally; ΔE 31.5 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 text5.22:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10.1Cornflower blue · ΔE 19.9Light slate grey · ΔE 22.4Slate grey · ΔE 22.7Light steelblue · ΔE 31.2Dark slateblue · ΔE 31.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B59D66
Analogous#66A6B5, #7566B5
Triadic#B5667E, #7EB566
Split complementary#B57666, #A5B566
Tetradic#B566A6, #B59D66, #66B576

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF2F8
Lighter +30%#CDD5E7
Lighter +20%#ABB8D6
Lighter +10%#889BC6
Darker −10%#4C649C
Darker −20%#3B4E7A
Darker −30%#2A3858
Darker −40%#1A2235
More saturated +25%#4A73D1
Less saturated −25%#828999

Channel breakdown

R102
G126
B181
Red102 (40%)
Green126 (49.4%)
Blue181 (71%)
Hue221.77°
Saturation (HSL)34.8%
Lightness55.49%
Dominant channelBlue
Hex per channelR 66 · G 7E · B B5

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Every value on this page was computed from “667eb5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.