Recognised as Colour

#12153E

#12153E
Blue
Dark
Nearest: Dark slateblue

#12153E is a blue with RGB values 18, 21, 62 and HSL 236°, 55%, 16%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#12153E#12153E

HEX#12153E

RGBrgb(18, 21, 62)

RGB (0–1)0.0706, 0.0824, 0.2431

RGB percentages7.1%, 8.2%, 24.3%

HSLhsl(235.9, 55%, 15.7%)

HSV / HSBhsv(235.9, 71%, 24.3%)

CMYK71%, 66.1%, 0%, 75.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,185,086

CSS custom property--colour: #12153E;

Brightness & contrast

Relative luminance0.01013WCAG 2.x, 0 is black and 1 is white

Perceived brightness28.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.46:1

Contrast with white17.46:1WCAG normal text: AAA

Contrast with black1.2:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#EDEAC1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001C3Fno red cones; affects about 1% of men; ΔE 8.4 from the original

Deuteranopia#00183Dno green cones; the most common form, about 1% of men; ΔE 6 from the original

Tritanopia#001F27no blue cones; rare, and affects men and women equally; ΔE 28.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.46:1WCAG large text: AAA

Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.2 Midnight blue · ΔE 29.6 Black · ΔE 31.6 Dark slate grey · ΔE 41 Rebecca purple · ΔE 42.6 Dim grey · ΔE 46.5

Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.18, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3E3B12

Analogous#122B3E, #25123E

Triadic#3E1215, #153E12

Split complementary#3E2512, #2B3E12

Tetradic#3E122B, #3E3B12, #123E25

Tints, shades & saturation

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

Lighter +40%#5058CC

Lighter +30%#343DB5

Lighter +20%#29308D

Lighter +10%#1D2266

Darker −10%#070816

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#080C48

Less saturated −25%#1C1E34

Channel breakdown

R18

G21

B62

Red18 (7.1%)

Green21 (8.2%)

Blue62 (24.3%)

Hue235.91°

Saturation (HSL)55%

Lightness15.69%

Dominant channelBlue

Hex per channelR 12 · G 15 · B 3E

Keep nerding

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

#12153E

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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