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Recognised as Colour

#005ADD

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

#005ADD is a blue with RGB values 0, 90, 221 and HSL 216°, 100%, 43%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#005ADD#005ADD
HEX#005ADD
RGBrgb(0, 90, 221)
RGB (0–1)0, 0.3529, 0.8667
RGB percentages0%, 35.3%, 86.7%
HSLhsl(215.6, 100%, 43.3%)
HSV / HSBhsv(215.6, 100%, 86.7%)
CMYK100%, 59.3%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer23,261
CSS custom property--colour: #005ADD;

Brightness & contrast

Relative luminance0.12533WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.99:1
Contrast with white5.99:1WCAG normal text: AA
Contrast with black3.51:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#FFA522

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006DE1no red cones; affects about 1% of men; ΔE 13.7 from the original
Deuteranopia#005ADBno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007C93no blue cones; rare, and affects men and women equally; ΔE 72.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.99:1WCAG large text: AAA
Contrast with black, large text3.51:1WCAG large text: AA

Named colours

Royal blue · ΔE 9.9Slate blue · ΔE 16.3Medium slateblue · ΔE 16.7Medium purple · ΔE 26.8Dodgerblue · ΔE 27.9Rebecca purple · ΔE 29.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.92, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD8300
Analogous#00C9DD, #1400DD
Triadic#DD005A, #5ADD00
Split complementary#DD1500, #C9DD00
Tetradic#DD00C9, #DD8300, #00DD15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AACDFF
Lighter +30%#77AEFF
Lighter +20%#4490FF
Lighter +10%#1172FF
Darker −10%#0045AA
Darker −20%#003077
Darker −30%#001C44
Darker −40%#000711
More saturated +25%#005ADD
Less saturated −25%#1C5FC1

Channel breakdown

R0
G90
B221
Red0 (0%)
Green90 (35.3%)
Blue221 (86.7%)
Hue215.57°
Saturation (HSL)100%
Lightness43.33%
Dominant channelBlue
Hex per channelR 00 · G 5A · B DD

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