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Recognised as Colour

#0028DD

  • #0028DD
  • Blue
  • Dark
  • Nearest: Medium blue

#0028DD is a blue with RGB values 0, 40, 221 and HSL 229°, 100%, 43%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0028DD#0028DD
HEX#0028DD
RGBrgb(0, 40, 221)
RGB (0–1)0, 0.1569, 0.8667
RGB percentages0%, 15.7%, 86.7%
HSLhsl(229.1, 100%, 43.3%)
HSV / HSBhsv(229.1, 100%, 86.7%)
CMYK100%, 81.9%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,461
CSS custom property--colour: #0028DD;

Brightness & contrast

Relative luminance0.06738WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.95:1
Contrast with white8.95:1WCAG normal text: AAA
Contrast with black2.35:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#FFD722

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054E2no red cones; affects about 1% of men; ΔE 28.9 from the original
Deuteranopia#003EDAno green cones; the most common form, about 1% of men; ΔE 15.7 from the original
Tritanopia#006485no blue cones; rare, and affects men and women equally; ΔE 97 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.95:1WCAG large text: AAA
Contrast with black, large text2.35:1WCAG large text: Fail

Named colours

Medium blue · ΔE 10Blue violet · ΔE 21.8Blue · ΔE 26.4Dark violet · ΔE 27.5Dark blue · ΔE 28.7Dark orchid · ΔE 33.1
Nearest named CSS colourMedium blue (#0000CD)ΔE 10.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDB500
Analogous#0096DD, #4700DD
Triadic#DD0028, #28DD00
Split complementary#DD4700, #96DD00
Tetradic#DD0096, #DDB500, #00DD47

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAB9FF
Lighter +30%#7790FF
Lighter +20%#4466FF
Lighter +10%#113CFF
Darker −10%#001FAA
Darker −20%#001677
Darker −30%#000C44
Darker −40%#000311
More saturated +25%#0028DD
Less saturated −25%#1C3AC1

Channel breakdown

R0
G40
B221
Red0 (0%)
Green40 (15.7%)
Blue221 (86.7%)
Hue229.14°
Saturation (HSL)100%
Lightness43.33%
Dominant channelBlue
Hex per channelR 00 · G 28 · B DD

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Every value on this page was computed from “0028dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.