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Colour

#455ABB

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

#455ABB is a blue with RGB values 69, 90, 187 and HSL 229°, 46%, 50%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#455ABB#455ABB
HEX#455ABB
RGBrgb(69, 90, 187)
RGB (0–1)0.2706, 0.3529, 0.7333
RGB percentages27.1%, 35.3%, 73.3%
HSLhsl(229.3, 46.5%, 50.2%)
HSV / HSBhsv(229.3, 63.1%, 73.3%)
CMYK63.1%, 51.9%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,545,211
CSS custom property--colour: #455ABB;

Brightness & contrast

Relative luminance0.12165WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.12:1
Contrast with white6.12:1WCAG normal text: AA
Contrast with black3.43:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#BAA544

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2167BEno red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#005DB9no green cones; the most common form, about 1% of men; ΔE 9.6 from the original
Tritanopia#007182no blue cones; rare, and affects men and women equally; ΔE 56.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.12:1WCAG large text: AAA
Contrast with black, large text3.43:1WCAG large text: AA

Named colours

Royal blue · ΔE 13.6Slate blue · ΔE 14.3Dark slateblue · ΔE 16.1Medium purple · ΔE 19.7Rebecca purple · ΔE 22.7Medium slateblue · ΔE 24.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BBA645
Analogous#4595BB, #6B45BB
Triadic#BB455A, #5ABB45
Split complementary#BB6B45, #95BB45
Tetradic#BB4595, #BBA645, #45BB6B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DADFF2
Lighter +30%#B5BDE4
Lighter +20%#909CD6
Lighter +10%#6A7BC9
Darker −10%#374896
Darker −20%#293671
Darker −30%#1C244B
Darker −40%#0E1226
More saturated +25%#2546DB
Less saturated −25%#656E9B

Channel breakdown

R69
G90
B187
Red69 (27.1%)
Green90 (35.3%)
Blue187 (73.3%)
Hue229.32°
Saturation (HSL)46.46%
Lightness50.2%
Dominant channelBlue
Hex per channelR 45 · G 5A · B BB

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