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Recognised as Colour

#1D1949

  • #1D1949
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1D1949 is a blue with RGB values 29, 25, 73 and HSL 245°, 49%, 19%. It is a dark colour, so white text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1D1949#1D1949
HEX#1D1949
RGBrgb(29, 25, 73)
RGB (0–1)0.1137, 0.098, 0.2863
RGB percentages11.4%, 9.8%, 28.6%
HSLhsl(245, 49%, 19.2%)
HSV / HSBhsv(245, 65.8%, 28.6%)
CMYK60.3%, 65.8%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,907,017
CSS custom property--colour: #1D1949;

Brightness & contrast

Relative luminance0.01438WCAG 2.x, 0 is black and 1 is white
Perceived brightness35 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.31:1
Contrast with white16.31:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#E2E6B6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00224Bno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#001E48no green cones; the most common form, about 1% of men; ΔE 9.1 from the original
Tritanopia#09242Eno blue cones; rare, and affects men and women equally; ΔE 31.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.31:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24Midnight blue · ΔE 24.8Black · ΔE 36.5Rebecca purple · ΔE 37.1Indigo · ΔE 42.3Dark slate grey · ΔE 43.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#454919
Analogous#192D49, #351949
Triadic#491D19, #19491D
Split complementary#493519, #2D4919
Tetradic#49192D, #454919, #194935

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6D64CA
Lighter +30%#4A40BB
Lighter +20%#3B3395
Lighter +10%#2C266F
Darker −10%#0E0C23
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#130D55
Less saturated −25%#27253D

Channel breakdown

R29
G25
B73
Red29 (11.4%)
Green25 (9.8%)
Blue73 (28.6%)
Hue245°
Saturation (HSL)48.98%
Lightness19.22%
Dominant channelBlue
Hex per channelR 1D · G 19 · B 49

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Every value on this page was computed from “1d1949” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.