Colour

#22313F

#22313F
Blue
Dark
Nearest: Dark slate grey

#22313F is a blue with RGB values 34, 49, 63 and HSL 209°, 30%, 19%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#22313F#22313F

HEX#22313F

RGBrgb(34, 49, 63)

RGB (0–1)0.1333, 0.1922, 0.2471

RGB percentages13.3%, 19.2%, 24.7%

HSLhsl(209, 29.9%, 19%)

HSV / HSBhsv(209, 46%, 24.7%)

CMYK46%, 22.2%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,240,831

CSS custom property--colour: #22313F;

Brightness & contrast

Relative luminance0.02896WCAG 2.x, 0 is black and 1 is white

Perceived brightness47 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.3:1

Contrast with white13.3:1WCAG normal text: AAA

Contrast with black1.58:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#DDCEC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2B3140no red cones; affects about 1% of men; ΔE 3.6 from the original

Deuteranopia#282E3Fno green cones; the most common form, about 1% of men; ΔE 4.2 from the original

Tritanopia#173436no blue cones; rare, and affects men and women equally; ΔE 10.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.3:1WCAG large text: AAA

Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.8 Black · ΔE 22.5 Dim grey · ΔE 27.1 Slate grey · ΔE 33.2 Gray · ΔE 35.7 Light slate grey · ΔE 36.3

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.82, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3F3022

Analogous#223F3F, #22223F

Triadic#3F2231, #313F22

Split complementary#3F2223, #3F3E22

Tetradic#3E223F, #3F3022, #233F22

Tints, shades & saturation

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

Lighter +40%#7798B6

Lighter +30%#587EA2

Lighter +20%#466581

Lighter +10%#344B60

Darker −10%#10171E

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#16314B

Less saturated −25%#2E3133

Channel breakdown

R34

G49

B63

Red34 (13.3%)

Green49 (19.2%)

Blue63 (24.7%)

Hue208.97°

Saturation (HSL)29.9%

Lightness19.02%

Dominant channelBlue

Hex per channelR 22 · G 31 · B 3F

Keep nerding

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

#22313F

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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