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Recognised as Colour

#1B2E53

  • #1B2E53
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1B2E53 is a blue with RGB values 27, 46, 83 and HSL 220°, 51%, 22%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1B2E53#1B2E53
HEX#1B2E53
RGBrgb(27, 46, 83)
RGB (0–1)0.1059, 0.1804, 0.3255
RGB percentages10.6%, 18%, 32.5%
HSLhsl(219.6, 50.9%, 21.6%)
HSV / HSBhsv(219.6, 67.5%, 32.5%)
CMYK67.5%, 44.6%, 0%, 67.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,781,331
CSS custom property--colour: #1B2E53;

Brightness & contrast

Relative luminance0.02812WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.44:1
Contrast with white13.44:1WCAG normal text: AAA
Contrast with black1.56:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#E4D1AC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E3254no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#162C52no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#00363Cno blue cones; rare, and affects men and women equally; ΔE 25.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.44:1WCAG large text: AAA
Contrast with black, large text1.56:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29Dark slate grey · ΔE 30Black · ΔE 32Steel blue · ΔE 35.4Dim grey · ΔE 35.8Midnight blue · ΔE 36
Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#53401B
Analogous#1B4A53, #241B53
Triadic#531B2E, #2E531B
Split complementary#53241B, #4A531B
Tetradic#531B4A, #53401B, #1B5324

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6B8DCF
Lighter +30%#456FC2
Lighter +20%#3459A0
Lighter +10%#284379
Darker −10%#0E192D
Darker −20%#020306
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D2A61
Less saturated −25%#293245

Channel breakdown

R27
G46
B83
Red27 (10.6%)
Green46 (18%)
Blue83 (32.5%)
Hue219.64°
Saturation (HSL)50.91%
Lightness21.57%
Dominant channelBlue
Hex per channelR 1B · G 2E · B 53

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Every value on this page was computed from “1b2e53” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.