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Recognised as Colour

#05197F

  • #05197F
  • Blue
  • Dark
  • Nearest: Midnight blue

#05197F is a blue with RGB values 5, 25, 127 and HSL 230°, 92%, 26%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#05197F#05197F
HEX#05197F
RGBrgb(5, 25, 127)
RGB (0–1)0.0196, 0.098, 0.498
RGB percentages2%, 9.8%, 49.8%
HSLhsl(230.2, 92.4%, 25.9%)
HSV / HSBhsv(230.2, 96.1%, 49.8%)
CMYK96.1%, 80.3%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer334,207
CSS custom property--colour: #05197F;

Brightness & contrast

Relative luminance0.0226WCAG 2.x, 0 is black and 1 is white
Perceived brightness47 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.46:1
Contrast with white14.46:1WCAG normal text: AAA
Contrast with black1.45:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#FAE680

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002F82no red cones; affects about 1% of men; ΔE 16.7 from the original
Deuteranopia#00237Dno green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#00394Bno blue cones; rare, and affects men and women equally; ΔE 61.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.46:1WCAG large text: AAA
Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.2Navy · ΔE 14Indigo · ΔE 16.7Dark blue · ΔE 18.3Rebecca purple · ΔE 20.5Dark slateblue · ΔE 23.2
Nearest named CSS colourMidnight blue (#191970)ΔE 9.22, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F6B05
Analogous#05567F, #2E057F
Triadic#7F0519, #197F05
Split complementary#7F2E05, #567F05
Tetradic#7F0556, #7F6B05, #057F2E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5872F8
Lighter +30%#2749F6
Lighter +20%#092CE1
Lighter +10%#0723B0
Darker −10%#030F4E
Darker −20%#01061D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001684
Less saturated −25%#16246F

Channel breakdown

R5
G25
B127
Red5 (2%)
Green25 (9.8%)
Blue127 (49.8%)
Hue230.16°
Saturation (HSL)92.42%
Lightness25.88%
Dominant channelBlue
Hex per channelR 05 · G 19 · B 7F

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Every value on this page was computed from “05197f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.