Colour

#1B232A

#1B232A
Blue
Dark
Nearest: Black

#1B232A is a blue with RGB values 27, 35, 42 and HSL 208°, 22%, 14%. It is a dark colour, so white text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B232A#1B232A

HEX#1B232A

RGBrgb(27, 35, 42)

RGB (0–1)0.1059, 0.1373, 0.1647

RGB percentages10.6%, 13.7%, 16.5%

HSLhsl(208, 21.7%, 13.5%)

HSV / HSBhsv(208, 35.7%, 16.5%)

CMYK35.7%, 16.7%, 0%, 83.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,778,474

CSS custom property--colour: #1B232A;

Brightness & contrast

Relative luminance0.01602WCAG 2.x, 0 is black and 1 is white

Perceived brightness33.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.9:1

Contrast with white15.9:1WCAG normal text: AAA

Contrast with black1.32:1WCAG normal text: Fail

Greyscale equivalent#222222

Inverted#E4DCD5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#20232Ano red cones; affects about 1% of men; ΔE 2.2 from the original

Deuteranopia#1E212Ano green cones; the most common form, about 1% of men; ΔE 2.7 from the original

Tritanopia#172525no blue cones; rare, and affects men and women equally; ΔE 6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.9:1WCAG large text: AAA

Contrast with black, large text1.32:1WCAG large text: Fail

Named colours

Black · ΔE 14.5 Dark slate grey · ΔE 20.8 Dim grey · ΔE 31.7 Slate grey · ΔE 39.9 Gray · ΔE 40.8 Light slate grey · ΔE 43

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#2A221B

Analogous#1B2A29, #1B1B2A

Triadic#2A1B23, #232A1B

Split complementary#2A1B1B, #2A291B

Tetradic#291B2A, #2A221B, #1B2A1B

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#6F8AA2

Lighter +30%#577187

Lighter +20%#435768

Lighter +10%#2F3D49

Darker −10%#07090B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#122433

Less saturated −25%#232323

Channel breakdown

R27

G35

B42

Red27 (10.6%)

Green35 (13.7%)

Blue42 (16.5%)

Hue208°

Saturation (HSL)21.74%

Lightness13.53%

Dominant channelBlue

Hex per channelR 1B · G 23 · B 2A

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#1B232A

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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