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Recognised as Colour

#191D52

  • #191D52
  • Blue
  • Dark
  • Nearest: Dark slateblue

#191D52 is a blue with RGB values 25, 29, 82 and HSL 236°, 53%, 21%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#191D52#191D52
HEX#191D52
RGBrgb(25, 29, 82)
RGB (0–1)0.098, 0.1137, 0.3216
RGB percentages9.8%, 11.4%, 32.2%
HSLhsl(235.8, 53.3%, 21%)
HSV / HSBhsv(235.8, 69.5%, 32.2%)
CMYK69.5%, 64.6%, 0%, 67.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,645,906
CSS custom property--colour: #191D52;

Brightness & contrast

Relative luminance0.01695WCAG 2.x, 0 is black and 1 is white
Perceived brightness38 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.68:1
Contrast with white15.68:1WCAG normal text: AAA
Contrast with black1.34:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#E6E2AD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002654no red cones; affects about 1% of men; ΔE 9.6 from the original
Deuteranopia#002151no green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#002A34no blue cones; rare, and affects men and women equally; ΔE 35.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.68:1WCAG large text: AAA
Contrast with black, large text1.34:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.1Midnight blue · ΔE 21.9Rebecca purple · ΔE 34.8Black · ΔE 39.8Indigo · ΔE 40.3Navy · ΔE 43.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.1, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#524E19
Analogous#193A52, #311952
Triadic#52191D, #1D5219
Split complementary#523119, #3A5219
Tetradic#52193A, #524E19, #195231

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#666ED1
Lighter +30%#3F49C5
Lighter +20%#3139A0
Lighter +10%#252B79
Darker −10%#0D0F2B
Darker −20%#010104
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C125F
Less saturated −25%#262845

Channel breakdown

R25
G29
B82
Red25 (9.8%)
Green29 (11.4%)
Blue82 (32.2%)
Hue235.79°
Saturation (HSL)53.27%
Lightness20.98%
Dominant channelBlue
Hex per channelR 19 · G 1D · B 52

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Every value on this page was computed from “191d52” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.