Recognised as Colour

#1B2975

#1B2975
Blue
Dark
Nearest: Midnight blue

#1B2975 is a blue with RGB values 27, 41, 117 and HSL 231°, 63%, 28%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1B2975#1B2975

HEX#1B2975

RGBrgb(27, 41, 117)

RGB (0–1)0.1059, 0.1608, 0.4588

RGB percentages10.6%, 16.1%, 45.9%

HSLhsl(230.7, 62.5%, 28.2%)

HSV / HSBhsv(230.7, 76.9%, 45.9%)

CMYK76.9%, 65%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,780,085

CSS custom property--colour: #1B2975;

Brightness & contrast

Relative luminance0.03103WCAG 2.x, 0 is black and 1 is white

Perceived brightness52.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.96:1

Contrast with white12.96:1WCAG normal text: AAA

Contrast with black1.62:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#E4D68A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003677no red cones; affects about 1% of men; ΔE 11.9 from the original

Deuteranopia#002D74no green cones; the most common form, about 1% of men; ΔE 5.7 from the original

Tritanopia#003D4Bno blue cones; rare, and affects men and women equally; ΔE 47.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.96:1WCAG large text: AAA

Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.6 Dark slateblue · ΔE 11.2 Rebecca purple · ΔE 23.4 Indigo · ΔE 29.6 Slate blue · ΔE 30.7 Navy · ΔE 32

Nearest named CSS colourMidnight blue (#191970)ΔE 10.63, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#75671B

Analogous#1B5675, #3A1B75

Triadic#751B29, #29751B

Split complementary#753A1B, #56751B

Tetradic#751B56, #75671B, #1B753A

Tints, shades & saturation

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

Lighter +40%#7B8BE1

Lighter +30%#5267D7

Lighter +20%#2E46C8

Lighter +10%#25389E

Darker −10%#111A4C

Darker −20%#080C22

Darker −30%#000000

Darker −40%#000000

More saturated +25%#091D87

Less saturated −25%#2D3563

Channel breakdown

R27

G41

B117

Red27 (10.6%)

Green41 (16.1%)

Blue117 (45.9%)

Hue230.67°

Saturation (HSL)62.5%

Lightness28.24%

Dominant channelBlue

Hex per channelR 1B · G 29 · B 75

Keep nerding

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

#1B2975

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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