Recognised as Colour

#1B2530

#1B2530
Blue
Dark
Nearest: Black

#1B2530 is a blue with RGB values 27, 37, 48 and HSL 211°, 28%, 15%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B2530#1B2530

HEX#1B2530

RGBrgb(27, 37, 48)

RGB (0–1)0.1059, 0.1451, 0.1882

RGB percentages10.6%, 14.5%, 18.8%

HSLhsl(211.4, 28%, 14.7%)

HSV / HSBhsv(211.4, 43.8%, 18.8%)

CMYK43.8%, 22.9%, 0%, 81.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,778,992

CSS custom property--colour: #1B2530;

Brightness & contrast

Relative luminance0.0177WCAG 2.x, 0 is black and 1 is white

Perceived brightness35.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.51:1

Contrast with white15.51:1WCAG normal text: AAA

Contrast with black1.35:1WCAG normal text: Fail

Greyscale equivalent#242424

Inverted#E4DACF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#212531no red cones; affects about 1% of men; ΔE 2.6 from the original

Deuteranopia#1E2330no green cones; the most common form, about 1% of men; ΔE 2.7 from the original

Tritanopia#142729no blue cones; rare, and affects men and women equally; ΔE 7.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.51:1WCAG large text: AAA

Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Black · ΔE 16.7 Dark slate grey · ΔE 20.8 Dim grey · ΔE 31.4 Slate grey · ΔE 38.7 Gray · ΔE 40.3 Light slate grey · ΔE 41.8

Nearest named CSS colourBlack (#000000)ΔE 16.66, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#30261B

Analogous#1B2F30, #1C1B30

Triadic#301B25, #25301B

Split complementary#301C1B, #2F301B

Tetradic#301B30, #30261B, #1B301C

Tints, shades & saturation

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

Lighter +40%#6B8AAC

Lighter +30%#527092

Lighter +20%#405771

Lighter +10%#2D3E51

Darker −10%#090C0F

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#122539

Less saturated −25%#242527

Channel breakdown

R27

G37

B48

Red27 (10.6%)

Green37 (14.5%)

Blue48 (18.8%)

Hue211.43°

Saturation (HSL)28%

Lightness14.71%

Dominant channelBlue

Hex per channelR 1B · G 25 · B 30

Keep nerding

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

#1B2530

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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