Colour

#12537E

#12537E
Blue
Dark
Nearest: Steel blue

#12537E is a blue with RGB values 18, 83, 126 and HSL 204°, 75%, 28%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#12537E#12537E

HEX#12537E

RGBrgb(18, 83, 126)

RGB (0–1)0.0706, 0.3255, 0.4941

RGB percentages7.1%, 32.5%, 49.4%

HSLhsl(203.9, 75%, 28.2%)

HSV / HSBhsv(203.9, 85.7%, 49.4%)

CMYK85.7%, 34.1%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,201,022

CSS custom property--colour: #12537E;

Brightness & contrast

Relative luminance0.07821WCAG 2.x, 0 is black and 1 is white

Perceived brightness77.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.19:1

Contrast with white8.19:1WCAG normal text: AAA

Contrast with black2.56:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#EDAC81

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3F5480no red cones; affects about 1% of men; ΔE 9 from the original

Deuteranopia#304B7Dno green cones; the most common form, about 1% of men; ΔE 9.8 from the original

Tritanopia#005E62no blue cones; rare, and affects men and women equally; ΔE 27.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text8.19:1WCAG large text: AAA

Contrast with black, large text2.56:1WCAG large text: Fail

Named colours

Steel blue · ΔE 19 Slate grey · ΔE 27.2 Dark slate grey · ΔE 27.5 Light slate grey · ΔE 29.1 Dark slateblue · ΔE 31.8 Dim grey · ΔE 31.8

Nearest named CSS colourSteel blue (#4682B4)ΔE 19.03, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7E3D12

Analogous#127E73, #121D7E

Triadic#7E1253, #537E12

Split complementary#7E121D, #7E7312

Tetradic#73127E, #7E3D12, #1D7E12

Tints, shades & saturation

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

Lighter +40%#71BAEB

Lighter +30%#45A5E4

Lighter +20%#1F8ED7

Lighter +10%#1870AB

Darker −10%#0C3651

Darker −20%#051825

Darker −30%#000000

Darker −40%#000000

More saturated +25%#005790

Less saturated −25%#244F6C

Channel breakdown

R18

G83

B126

Red18 (7.1%)

Green83 (32.5%)

Blue126 (49.4%)

Hue203.89°

Saturation (HSL)75%

Lightness28.24%

Dominant channelBlue

Hex per channelR 12 · G 53 · B 7E

Keep nerding

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#12537E

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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