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Colour

#1B2429

  • #1B2429
  • Blue
  • Dark
  • Nearest: Black

#1B2429 is a blue with RGB values 27, 36, 41 and HSL 201°, 21%, 13%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B2429#1B2429
HEX#1B2429
RGBrgb(27, 36, 41)
RGB (0–1)0.1059, 0.1412, 0.1608
RGB percentages10.6%, 14.1%, 16.1%
HSLhsl(201.4, 20.6%, 13.3%)
HSV / HSBhsv(201.4, 34.1%, 16.1%)
CMYK34.1%, 12.2%, 0%, 83.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,778,729
CSS custom property--colour: #1B2429;

Brightness & contrast

Relative luminance0.01655WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.78:1
Contrast with white15.78:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#E4DBD6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#222429no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#202229no green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#172526no blue cones; rare, and affects men and women equally; ΔE 3.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.78:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Black · ΔE 14.5Dark slate grey · ΔE 20Dim grey · ΔE 31.3Slate grey · ΔE 39.7Gray · ΔE 40.4Light slate grey · ΔE 42.8
Nearest named CSS colourBlack (#000000)ΔE 14.54, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#29201B
Analogous#1B2927, #1B1D29
Triadic#291B24, #24291B
Split complementary#291B1D, #29271B
Tetradic#271B29, #29201B, #1D291B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6F8FA1
Lighter +30%#587585
Lighter +20%#445A67
Lighter +10%#2F3F48
Darker −10%#07090A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#132631
Less saturated −25%#222222

Channel breakdown

R27
G36
B41
Red27 (10.6%)
Green36 (14.1%)
Blue41 (16.1%)
Hue201.43°
Saturation (HSL)20.59%
Lightness13.33%
Dominant channelBlue
Hex per channelR 1B · G 24 · B 29

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Every value on this page was computed from “1b2429” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.