Recognised as Colour

#42598A

#42598A
Blue
Dark
Nearest: Steel blue

#42598A is a blue with RGB values 66, 89, 138 and HSL 221°, 35%, 40%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#42598A#42598A

HEX#42598A

RGBrgb(66, 89, 138)

RGB (0–1)0.2588, 0.349, 0.5412

RGB percentages25.9%, 34.9%, 54.1%

HSLhsl(220.8, 35.3%, 40%)

HSV / HSBhsv(220.8, 52.2%, 54.1%)

CMYK52.2%, 35.5%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,348,298

CSS custom property--colour: #42598A;

Brightness & contrast

Relative luminance0.10138WCAG 2.x, 0 is black and 1 is white

Perceived brightness90.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.94:1

Contrast with white6.94:1WCAG normal text: AA

Contrast with black3.03:1WCAG normal text: Fail

Greyscale equivalent#585858

Inverted#BDA675

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#465D8Cno red cones; affects about 1% of men; ΔE 2.1 from the original

Deuteranopia#3E5789no green cones; the most common form, about 1% of men; ΔE 1.2 from the original

Tritanopia#21646Bno blue cones; rare, and affects men and women equally; ΔE 31.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.94:1WCAG large text: AAA

Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.7 Dark slateblue · ΔE 24.5 Slate grey · ΔE 25.7 Light slate grey · ΔE 27.2 Cornflower blue · ΔE 30.9 Dim grey · ΔE 31.2

Nearest named CSS colourSteel blue (#4682B4)ΔE 17.73, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8A7342

Analogous#427D8A, #4F428A

Triadic#8A4259, #598A42

Split complementary#8A4F42, #7D8A42

Tetradic#8A427D, #8A7342, #428A4F

Tints, shades & saturation

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

Lighter +40%#BAC5DE

Lighter +30%#98A9CD

Lighter +20%#758CBD

Lighter +10%#536FAC

Darker −10%#324367

Darker −20%#212C45

Darker −30%#111622

Darker −40%#000000

More saturated +25%#2950A3

Less saturated −25%#5C6271

Channel breakdown

R66

G89

B138

Red66 (25.9%)

Green89 (34.9%)

Blue138 (54.1%)

Hue220.83°

Saturation (HSL)35.29%

Lightness40%

Dominant channelBlue

Hex per channelR 42 · G 59 · B 8A

Keep nerding

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

#42598A

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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