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Recognised as Colour

#1900DB

  • #1900DB
  • Blue
  • Dark
  • Nearest: Medium blue

#1900DB is a blue with RGB values 25, 0, 219 and HSL 247°, 100%, 43%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1900DB#1900DB
HEX#1900DB
RGBrgb(25, 0, 219)
RGB (0–1)0.098, 0, 0.8588
RGB percentages9.8%, 0%, 85.9%
HSLhsl(246.8, 100%, 42.9%)
HSV / HSBhsv(246.8, 100%, 85.9%)
CMYK88.6%, 100%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,638,619
CSS custom property--colour: #1900DB;

Brightness & contrast

Relative luminance0.05321WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.17:1
Contrast with white10.17:1WCAG normal text: AAA
Contrast with black2.06:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#E6FF24

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004CE0no red cones; affects about 1% of men; ΔE 36.3 from the original
Deuteranopia#0036D8no green cones; the most common form, about 1% of men; ΔE 23.7 from the original
Tritanopia#005B80no blue cones; rare, and affects men and women equally; ΔE 104.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.17:1WCAG large text: AAA
Contrast with black, large text2.06:1WCAG large text: Fail

Named colours

Medium blue · ΔE 5.8Blue · ΔE 15.9Blue violet · ΔE 25.1Dark violet · ΔE 28.1Dark blue · ΔE 35.8Dark orchid · ΔE 38.9
Nearest named CSS colourMedium blue (#0000CD)ΔE 5.79, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C2DB00
Analogous#0055DB, #8600DB
Triadic#DB1900, #00DB19
Split complementary#DB8600, #55DB00
Tetradic#DB0055, #C2DB00, #00DB86

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2A8FF
Lighter +30%#8575FF
Lighter +20%#5842FF
Lighter +10%#2A0FFF
Darker −10%#1300A8
Darker −20%#0D0075
Darker −30%#080042
Darker −40%#02000F
More saturated +25%#1900DB
Less saturated −25%#2E1BC0

Channel breakdown

R25
G0
B219
Red25 (9.8%)
Green0 (0%)
Blue219 (85.9%)
Hue246.85°
Saturation (HSL)100%
Lightness42.94%
Dominant channelBlue
Hex per channelR 19 · G 00 · B DB

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Every value on this page was computed from “1900db” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.