Colour

#28247E

#28247E
Blue
Dark
Nearest: Midnight blue

#28247E is a blue with RGB values 40, 36, 126 and HSL 243°, 56%, 32%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#28247E#28247E

HEX#28247E

RGBrgb(40, 36, 126)

RGB (0–1)0.1569, 0.1412, 0.4941

RGB percentages15.7%, 14.1%, 49.4%

HSLhsl(242.7, 55.6%, 31.8%)

HSV / HSBhsv(242.7, 71.4%, 49.4%)

CMYK68.3%, 71.4%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,630,782

CSS custom property--colour: #28247E;

Brightness & contrast

Relative luminance0.03219WCAG 2.x, 0 is black and 1 is white

Perceived brightness55.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.77:1

Contrast with white12.77:1WCAG normal text: AAA

Contrast with black1.64:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#D7DB81

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003681no red cones; affects about 1% of men; ΔE 15.8 from the original

Deuteranopia#002E7Cno green cones; the most common form, about 1% of men; ΔE 11.6 from the original

Tritanopia#003C4Eno blue cones; rare, and affects men and women equally; ΔE 54 from the original

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

Contrast with white, large text12.77:1WCAG large text: AAA

Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.1 Dark slateblue · ΔE 14 Rebecca purple · ΔE 16.7 Indigo · ΔE 20.3 Navy · ΔE 22.9 Slate blue · ΔE 26

Nearest named CSS colourMidnight blue (#191970)ΔE 5.08, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7A7E24

Analogous#244D7E, #55247E

Triadic#7E2824, #247E28

Split complementary#7E5524, #4D7E24

Tetradic#7E244D, #7A7E24, #247E55

Tints, shades & saturation

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

Lighter +40%#938FDF

Lighter +30%#6C67D4

Lighter +20%#4640C8

Lighter +10%#352FA6

Darker −10%#1B1956

Darker −20%#0F0D2F

Darker −30%#020207

Darker −40%#000000

More saturated +25%#161092

Less saturated −25%#3A386A

Channel breakdown

R40

G36

B126

Red40 (15.7%)

Green36 (14.1%)

Blue126 (49.4%)

Hue242.67°

Saturation (HSL)55.56%

Lightness31.76%

Dominant channelBlue

Hex per channelR 28 · G 24 · B 7E

Keep nerding

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#28247E

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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