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Recognised as Colour

#456C8B

  • #456C8B
  • Blue
  • Dark
  • Nearest: Steel blue

#456C8B is a blue with RGB values 69, 108, 139 and HSL 207°, 34%, 41%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#456C8B#456C8B
HEX#456C8B
RGBrgb(69, 108, 139)
RGB (0–1)0.2706, 0.4235, 0.5451
RGB percentages27.1%, 42.4%, 54.5%
HSLhsl(206.6, 33.7%, 40.8%)
HSV / HSBhsv(206.6, 50.4%, 54.5%)
CMYK50.4%, 22.3%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,549,771
CSS custom property--colour: #456C8B;

Brightness & contrast

Relative luminance0.13854WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.57:1
Contrast with white5.57:1WCAG normal text: AA
Contrast with black3.77:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#BA9374

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F6C8Cno red cones; affects about 1% of men; ΔE 8.2 from the original
Deuteranopia#56658Ano green cones; the most common form, about 1% of men; ΔE 8.8 from the original
Tritanopia#237376no blue cones; rare, and affects men and women equally; ΔE 21.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.57:1WCAG large text: AAA
Contrast with black, large text3.77:1WCAG large text: AA

Named colours

Steel blue · ΔE 13.8Slate grey · ΔE 14.1Light slate grey · ΔE 15.8Dim grey · ΔE 21.8Dark slate grey · ΔE 22.8Gray · ΔE 23.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B6445
Analogous#458B87, #45498B
Triadic#8B456C, #6C8B45
Split complementary#8B4549, #8B8745
Tetradic#87458B, #8B6445, #498B45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BED0DE
Lighter +30%#9BB7CE
Lighter +20%#799FBD
Lighter +10%#5786AC
Darker −10%#345269
Darker −20%#233747
Darker −30%#121D25
Darker −40%#010203
More saturated +25%#2B6FA5
Less saturated −25%#5F6971

Channel breakdown

R69
G108
B139
Red69 (27.1%)
Green108 (42.4%)
Blue139 (54.5%)
Hue206.57°
Saturation (HSL)33.65%
Lightness40.78%
Dominant channelBlue
Hex per channelR 45 · G 6C · B 8B

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Every value on this page was computed from “456c8b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.