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Colour

#455BD9

  • #455BD9
  • Blue
  • Dark
  • Nearest: Royal blue

#455BD9 is a blue with RGB values 69, 91, 217 and HSL 231°, 66%, 56%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#455BD9#455BD9
HEX#455BD9
RGBrgb(69, 91, 217)
RGB (0–1)0.2706, 0.3569, 0.851
RGB percentages27.1%, 35.7%, 85.1%
HSLhsl(231.1, 66.1%, 56.1%)
HSV / HSBhsv(231.1, 68.2%, 85.1%)
CMYK68.2%, 58.1%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,545,497
CSS custom property--colour: #455BD9;

Brightness & contrast

Relative luminance0.13757WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.6:1
Contrast with white5.6:1WCAG normal text: AA
Contrast with black3.75:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#BAA426

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006FDDno red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#0061D7no green cones; the most common form, about 1% of men; ΔE 9.9 from the original
Tritanopia#007A91no blue cones; rare, and affects men and women equally; ΔE 70.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.6:1WCAG large text: AAA
Contrast with black, large text3.75:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.8Slate blue · ΔE 10Medium slateblue · ΔE 11.8Medium purple · ΔE 20.7Rebecca purple · ΔE 24.9Dodgerblue · ΔE 27.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.85, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9C345
Analogous#45A5D9, #7945D9
Triadic#D9455B, #5BD945
Split complementary#D97945, #A5D945
Tetradic#D945A5, #D9C345, #45D979

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EEF0FC
Lighter +30%#C4CBF3
Lighter +20%#9AA6EA
Lighter +10%#6F80E2
Darker −10%#283FC3
Darker −20%#1F3199
Darker −30%#17246E
Darker −40%#0E1644
More saturated +25%#2947F5
Less saturated −25%#616FBD

Channel breakdown

R69
G91
B217
Red69 (27.1%)
Green91 (35.7%)
Blue217 (85.1%)
Hue231.08°
Saturation (HSL)66.07%
Lightness56.08%
Dominant channelBlue
Hex per channelR 45 · G 5B · B D9

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Every value on this page was computed from “455bd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.