Colour

#222D8F

#222D8F
Blue
Dark
Nearest: Midnight blue

#222D8F is a blue with RGB values 34, 45, 143 and HSL 234°, 62%, 35%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#222D8F#222D8F

HEX#222D8F

RGBrgb(34, 45, 143)

RGB (0–1)0.1333, 0.1765, 0.5608

RGB percentages13.3%, 17.6%, 56.1%

HSLhsl(233.9, 61.6%, 34.7%)

HSV / HSBhsv(233.9, 76.2%, 56.1%)

CMYK76.2%, 68.5%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,239,887

CSS custom property--colour: #222D8F;

Brightness & contrast

Relative luminance0.042WCAG 2.x, 0 is black and 1 is white

Perceived brightness62.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.41:1

Contrast with white11.41:1WCAG normal text: AAA

Contrast with black1.84:1WCAG normal text: Fail

Greyscale equivalent#323232

Inverted#DDD270

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003F92no red cones; affects about 1% of men; ΔE 15.1 from the original

Deuteranopia#00358Dno green cones; the most common form, about 1% of men; ΔE 9.1 from the original

Tritanopia#00475Ano blue cones; rare, and affects men and women equally; ΔE 57.9 from the original

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

Contrast with white, large text11.41:1WCAG large text: AAA

Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.2 Dark slateblue · ΔE 15.6 Rebecca purple · ΔE 16.6 Indigo · ΔE 20.9 Slate blue · ΔE 21.7 Navy · ΔE 22

Nearest named CSS colourMidnight blue (#191970)ΔE 10.21, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8F8422

Analogous#22648F, #4E228F

Triadic#8F222D, #2D8F22

Split complementary#8F4E22, #638F22

Tetradic#8F2263, #8F8422, #228F4D

Tints, shades & saturation

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

Lighter +40%#979FE6

Lighter +30%#6E79DC

Lighter +20%#4453D3

Lighter +10%#2C3AB8

Darker −10%#182066

Darker −20%#0E133D

Darker −30%#050613

Darker −40%#000000

More saturated +25%#0C1BA5

Less saturated −25%#383F79

Channel breakdown

R34

G45

B143

Red34 (13.3%)

Green45 (17.6%)

Blue143 (56.1%)

Hue233.94°

Saturation (HSL)61.58%

Lightness34.71%

Dominant channelBlue

Hex per channelR 22 · G 2D · B 8F

Keep nerding

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#222D8F

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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