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Recognised as Colour

#1D2B43

  • #1D2B43
  • Blue
  • Dark
  • Nearest: Dark slate grey

#1D2B43 is a blue with RGB values 29, 43, 67 and HSL 218°, 40%, 19%. It is a dark colour, so white text on it reaches 14.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1D2B43#1D2B43
HEX#1D2B43
RGBrgb(29, 43, 67)
RGB (0–1)0.1137, 0.1686, 0.2627
RGB percentages11.4%, 16.9%, 26.3%
HSLhsl(217.9, 39.6%, 18.8%)
HSV / HSBhsv(217.9, 56.7%, 26.3%)
CMYK56.7%, 35.8%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,911,619
CSS custom property--colour: #1D2B43;

Brightness & contrast

Relative luminance0.02394WCAG 2.x, 0 is black and 1 is white
Perceived brightness43 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.2:1
Contrast with white14.2:1WCAG normal text: AAA
Contrast with black1.48:1WCAG normal text: Fail
Greyscale equivalent#2A2A2A
Inverted#E2D4BC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#222D44no red cones; affects about 1% of men; ΔE 1.6 from the original
Deuteranopia#1D2942no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#0C3034no blue cones; rare, and affects men and women equally; ΔE 17 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.2:1WCAG large text: AAA
Contrast with black, large text1.48:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.7Black · ΔE 24.4Dim grey · ΔE 31.9Slate grey · ΔE 36.2Dark slateblue · ΔE 37.1Steel blue · ΔE 38.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#43351D
Analogous#1D3E43, #221D43
Triadic#431D2B, #2B431D
Split complementary#43221D, #3E431D
Tetradic#431D3E, #43351D, #1D4322

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6C8BC0
Lighter +30%#4B70AE
Lighter +20%#3C598A
Lighter +10%#2C4267
Darker −10%#0E141F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#11284F
Less saturated −25%#292E37

Channel breakdown

R29
G43
B67
Red29 (11.4%)
Green43 (16.9%)
Blue67 (26.3%)
Hue217.89°
Saturation (HSL)39.58%
Lightness18.82%
Dominant channelBlue
Hex per channelR 1D · G 2B · B 43

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Every value on this page was computed from “1d2b43” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.