Colour

#04223B

#04223B
Blue
Dark
Nearest: Black

#04223B is a blue with RGB values 4, 34, 59 and HSL 207°, 87%, 12%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#04223B#04223B

HEX#04223B

RGBrgb(4, 34, 59)

RGB (0–1)0.0157, 0.1333, 0.2314

RGB percentages1.6%, 13.3%, 23.1%

HSLhsl(207.3, 87.3%, 12.4%)

HSV / HSBhsv(207.3, 93.2%, 23.1%)

CMYK93.2%, 42.4%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer270,907

CSS custom property--colour: #04223B;

Brightness & contrast

Relative luminance0.01486WCAG 2.x, 0 is black and 1 is white

Perceived brightness32.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.19:1

Contrast with white16.19:1WCAG normal text: AAA

Contrast with black1.3:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#FBDDC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#16233Cno red cones; affects about 1% of men; ΔE 3.9 from the original

Deuteranopia#0E1E3Bno green cones; the most common form, about 1% of men; ΔE 5.2 from the original

Tritanopia#00282Bno blue cones; rare, and affects men and women equally; ΔE 18 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.19:1WCAG large text: AAA

Contrast with black, large text1.3:1WCAG large text: Fail

Named colours

Black · ΔE 22.9 Dark slate grey · ΔE 27 Dim grey · ΔE 37.2 Dark slateblue · ΔE 39.2 Slate grey · ΔE 41.3 Steel blue · ΔE 42.2

Nearest named CSS colourBlack (#000000)ΔE 22.92, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B1D04

Analogous#043B38, #04073B

Triadic#3B0422, #223B04

Split complementary#3B0407, #3B3804

Tetradic#38043B, #3B1D04, #073B04

Tints, shades & saturation

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

Lighter +40%#1B8FF0

Lighter +30%#0E75CA

Lighter +20%#0A599B

Lighter +10%#073E6B

Darker −10%#01060B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00223F

Less saturated −25%#0C2133

Channel breakdown

G34

B59

Red4 (1.6%)

Green34 (13.3%)

Blue59 (23.1%)

Hue207.27°

Saturation (HSL)87.3%

Lightness12.35%

Dominant channelBlue

Hex per channelR 04 · G 22 · B 3B

Keep nerding

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

#04223B

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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