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Colour

#005BB8

  • #005BB8
  • Blue
  • Dark
  • Nearest: Royal blue

#005BB8 is a blue with RGB values 0, 91, 184 and HSL 210°, 100%, 36%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#005BB8#005BB8
HEX#005BB8
RGBrgb(0, 91, 184)
RGB (0–1)0, 0.3569, 0.7216
RGB percentages0%, 35.7%, 72.2%
HSLhsl(210.3, 100%, 36.1%)
HSV / HSBhsv(210.3, 100%, 72.2%)
CMYK100%, 50.5%, 0%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer23,480
CSS custom property--colour: #005BB8;

Brightness & contrast

Relative luminance0.10943WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.59:1
Contrast with white6.59:1WCAG normal text: AA
Contrast with black3.19:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#FFA447

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1C65BBno red cones; affects about 1% of men; ΔE 6.5 from the original
Deuteranopia#0056B6no green cones; the most common form, about 1% of men; ΔE 3.3 from the original
Tritanopia#007281no blue cones; rare, and affects men and women equally; ΔE 53.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.59:1WCAG large text: AAA
Contrast with black, large text3.19:1WCAG large text: AA

Named colours

Royal blue · ΔE 17.6Dark slateblue · ΔE 19.6Dodgerblue · ΔE 21.9Slate blue · ΔE 22.6Cornflower blue · ΔE 23.8Medium purple · ΔE 27.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 17.63, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B85D00
Analogous#00B7B8, #0100B8
Triadic#B8005B, #5BB800
Split complementary#B80100, #B7B800
Tetradic#B800B7, #B85D00, #00B801

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#85C1FF
Lighter +30%#52A8FF
Lighter +20%#1F8EFF
Lighter +10%#0074EB
Darker −10%#004285
Darker −20%#002952
Darker −30%#000F1F
Darker −40%#000000
More saturated +25%#005BB8
Less saturated −25%#175BA1

Channel breakdown

R0
G91
B184
Red0 (0%)
Green91 (35.7%)
Blue184 (72.2%)
Hue210.33°
Saturation (HSL)100%
Lightness36.08%
Dominant channelBlue
Hex per channelR 00 · G 5B · B B8

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Every value on this page was computed from “005bb8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.