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Colour

#1A1D23

  • #1A1D23
  • Blue
  • Dark
  • Nearest: Black

#1A1D23 is a blue with RGB values 26, 29, 35 and HSL 220°, 15%, 12%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1A1D23#1A1D23
HEX#1A1D23
RGBrgb(26, 29, 35)
RGB (0–1)0.102, 0.1137, 0.1373
RGB percentages10.2%, 11.4%, 13.7%
HSLhsl(220, 14.8%, 12%)
HSV / HSBhsv(220, 25.7%, 13.7%)
CMYK25.7%, 17.1%, 0%, 86.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,711,395
CSS custom property--colour: #1A1D23;

Brightness & contrast

Relative luminance0.0122WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.88:1
Contrast with white16.88:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#E5E2DC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1B1D23no red cones; affects about 1% of men; ΔE 0.5 from the original
Deuteranopia#1A1D23no green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#181E1Fno blue cones; rare, and affects men and women equally; ΔE 4.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.88:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 11.6Dark slate grey · ΔE 23.8Dim grey · ΔE 34Slate grey · ΔE 42.6Gray · ΔE 43.1Light slate grey · ΔE 45.8
Nearest named CSS colourBlack (#000000)ΔE 11.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#23201A
Analogous#1A2223, #1C1A23
Triadic#231A1D, #1D231A
Split complementary#231C1A, #22231A
Tetradic#231A22, #23201A, #1A231B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#727E97
Lighter +30%#5B667B
Lighter +20%#454D5E
Lighter +10%#303540
Darker −10%#040506
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#121A2B
Less saturated −25%#1F1F1F

Channel breakdown

R26
G29
B35
Red26 (10.2%)
Green29 (11.4%)
Blue35 (13.7%)
Hue220°
Saturation (HSL)14.75%
Lightness11.96%
Dominant channelBlue
Hex per channelR 1A · G 1D · B 23

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Every value on this page was computed from “1a1d23” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.