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Colour

#0063DF

  • #0063DF
  • Blue
  • Dark
  • Nearest: Royal blue

#0063DF is a blue with RGB values 0, 99, 223 and HSL 213°, 100%, 44%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0063DF#0063DF
HEX#0063DF
RGBrgb(0, 99, 223)
RGB (0–1)0, 0.3882, 0.8745
RGB percentages0%, 38.8%, 87.5%
HSLhsl(213.4, 100%, 43.7%)
HSV / HSBhsv(213.4, 100%, 87.5%)
CMYK100%, 55.6%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer25,567
CSS custom property--colour: #0063DF;

Brightness & contrast

Relative luminance0.14251WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.45:1
Contrast with white5.45:1WCAG normal text: AA
Contrast with black3.85:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#FF9C20

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0073E3no red cones; affects about 1% of men; ΔE 11.2 from the original
Deuteranopia#0061DDno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#008297no blue cones; rare, and affects men and women equally; ΔE 68.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.45:1WCAG large text: AAA
Contrast with black, large text3.85:1WCAG large text: AA

Named colours

Royal blue · ΔE 5.5Slate blue · ΔE 16.2Medium slateblue · ΔE 18.4Dodgerblue · ΔE 21.8Medium purple · ΔE 25.1Dark slateblue · ΔE 30.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 5.51, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF7C00
Analogous#00D3DF, #0C00DF
Triadic#DF0063, #63DF00
Split complementary#DF0C00, #D3DF00
Tetradic#DF00D3, #DF7C00, #00DF0C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACD1FF
Lighter +30%#79B4FF
Lighter +20%#4698FF
Lighter +10%#137CFF
Darker −10%#004CAC
Darker −20%#003679
Darker −30%#001F46
Darker −40%#000813
More saturated +25%#0063DF
Less saturated −25%#1C66C3

Channel breakdown

R0
G99
B223
Red0 (0%)
Green99 (38.8%)
Blue223 (87.5%)
Hue213.36°
Saturation (HSL)100%
Lightness43.73%
Dominant channelBlue
Hex per channelR 00 · G 63 · B DF

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Every value on this page was computed from “0063df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.