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Recognised as Colour

#1D2997

  • #1D2997
  • Blue
  • Dark
  • Nearest: Midnight blue

#1D2997 is a blue with RGB values 29, 41, 151 and HSL 234°, 68%, 35%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1D2997#1D2997
HEX#1D2997
RGBrgb(29, 41, 151)
RGB (0–1)0.1137, 0.1608, 0.5922
RGB percentages11.4%, 16.1%, 59.2%
HSLhsl(234.1, 67.8%, 35.3%)
HSV / HSBhsv(234.1, 80.8%, 59.2%)
CMYK80.8%, 72.8%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,911,191
CSS custom property--colour: #1D2997;

Brightness & contrast

Relative luminance0.04081WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.56:1
Contrast with white11.56:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#E2D668

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003F9Ano red cones; affects about 1% of men; ΔE 17.5 from the original
Deuteranopia#003395no green cones; the most common form, about 1% of men; ΔE 9.8 from the original
Tritanopia#00485Dno blue cones; rare, and affects men and women equally; ΔE 64.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.56:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 14.6Navy · ΔE 16.2Indigo · ΔE 17.5Rebecca purple · ΔE 17.7Dark blue · ΔE 18.6Slate blue · ΔE 21.6
Nearest named CSS colourMidnight blue (#191970)ΔE 14.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#978B1D
Analogous#1D6697, #4E1D97
Triadic#971D29, #29971D
Split complementary#974E1D, #66971D
Tetradic#971D66, #978B1D, #1D974E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#959EEB
Lighter +30%#6B76E2
Lighter +20%#404FDA
Lighter +10%#2535C2
Darker −10%#151D6C
Darker −20%#0D1241
Darker −30%#040617
Darker −40%#000000
More saturated +25%#0617AE
Less saturated −25%#333B81

Channel breakdown

R29
G41
B151
Red29 (11.4%)
Green41 (16.1%)
Blue151 (59.2%)
Hue234.1°
Saturation (HSL)67.78%
Lightness35.29%
Dominant channelBlue
Hex per channelR 1D · G 29 · B 97

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Every value on this page was computed from “1d2997” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.