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Recognised as Colour

#1F1970

  • #1F1970
  • Blue
  • Dark
  • Nearest: Midnight blue

#1F1970 is a blue with RGB values 31, 25, 112 and HSL 244°, 64%, 27%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1F1970#1F1970
HEX#1F1970
RGBrgb(31, 25, 112)
RGB (0–1)0.1216, 0.098, 0.4392
RGB percentages12.2%, 9.8%, 43.9%
HSLhsl(244.1, 63.5%, 26.9%)
HSV / HSBhsv(244.1, 77.7%, 43.9%)
CMYK72.3%, 77.7%, 0%, 56.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,038,128
CSS custom property--colour: #1F1970;

Brightness & contrast

Relative luminance0.02156WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.67:1
Contrast with white14.67:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#E0E68F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002C73no red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#00246Eno green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#003243no blue cones; rare, and affects men and women equally; ΔE 52.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.67:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 1.1Dark slateblue · ΔE 17.2Rebecca purple · ΔE 19.7Indigo · ΔE 20.3Navy · ΔE 22.2Dark blue · ΔE 26.9
Nearest named CSS colourMidnight blue (#191970)ΔE 1.05, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A7019
Analogous#193E70, #4B1970
Triadic#701F19, #19701F
Split complementary#704A19, #3F7019
Tetradic#70193E, #6A7019, #19704B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7C75E0
Lighter +30%#554BD7
Lighter +20%#362CC3
Lighter +10%#2B229A
Darker −10%#131046
Darker −20%#08061D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#100881
Less saturated −25%#2E2A5F

Channel breakdown

R31
G25
B112
Red31 (12.2%)
Green25 (9.8%)
Blue112 (43.9%)
Hue244.14°
Saturation (HSL)63.5%
Lightness26.86%
Dominant channelBlue
Hex per channelR 1F · G 19 · B 70

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Every value on this page was computed from “1f1970” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.