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Recognised as Colour

#191D83

  • #191D83
  • Blue
  • Dark
  • Nearest: Midnight blue

#191D83 is a blue with RGB values 25, 29, 131 and HSL 238°, 68%, 31%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#191D83#191D83
HEX#191D83
RGBrgb(25, 29, 131)
RGB (0–1)0.098, 0.1137, 0.5137
RGB percentages9.8%, 11.4%, 51.4%
HSLhsl(237.7, 67.9%, 30.6%)
HSV / HSBhsv(237.7, 80.9%, 51.4%)
CMYK80.9%, 77.9%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,645,955
CSS custom property--colour: #191D83;

Brightness & contrast

Relative luminance0.02724WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.59:1
Contrast with white13.59:1WCAG normal text: AAA
Contrast with black1.54:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#E6E27C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003386no red cones; affects about 1% of men; ΔE 17.2 from the original
Deuteranopia#002981no green cones; the most common form, about 1% of men; ΔE 11.1 from the original
Tritanopia#003B4Fno blue cones; rare, and affects men and women equally; ΔE 60.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.59:1WCAG large text: AAA
Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.9Navy · ΔE 15.1Indigo · ΔE 16Rebecca purple · ΔE 18.3Dark blue · ΔE 19.1Dark slateblue · ΔE 21.4
Nearest named CSS colourMidnight blue (#191970)ΔE 8.91, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#837F19
Analogous#195283, #4A1983
Triadic#83191D, #1D8319
Split complementary#834A19, #528319
Tetradic#831952, #837F19, #19834A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8185E7
Lighter +30%#565BDF
Lighter +20%#2B32D7
Lighter +10%#2126AE
Darker −10%#111458
Darker −20%#090A2D
Darker −30%#000103
Darker −40%#000000
More saturated +25%#050B96
Less saturated −25%#2C2F70

Channel breakdown

R25
G29
B131
Red25 (9.8%)
Green29 (11.4%)
Blue131 (51.4%)
Hue237.74°
Saturation (HSL)67.95%
Lightness30.59%
Dominant channelBlue
Hex per channelR 19 · G 1D · B 83

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Every value on this page was computed from “191d83” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.