Colour

#425A8B

#425A8B
Blue
Dark
Nearest: Steel blue

#425A8B is a blue with RGB values 66, 90, 139 and HSL 220°, 36%, 40%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#425A8B#425A8B

HEX#425A8B

RGBrgb(66, 90, 139)

RGB (0–1)0.2588, 0.3529, 0.5451

RGB percentages25.9%, 35.3%, 54.5%

HSLhsl(220.3, 35.6%, 40.2%)

HSV / HSBhsv(220.3, 52.5%, 54.5%)

CMYK52.5%, 35.3%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,348,555

CSS custom property--colour: #425A8B;

Brightness & contrast

Relative luminance0.10335WCAG 2.x, 0 is black and 1 is white

Perceived brightness90.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.85:1

Contrast with white6.85:1WCAG normal text: AA

Contrast with black3.07:1WCAG normal text: Fail

Greyscale equivalent#585858

Inverted#BDA574

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#475E8Dno red cones; affects about 1% of men; ΔE 2.2 from the original

Deuteranopia#3F578Ano green cones; the most common form, about 1% of men; ΔE 1.8 from the original

Tritanopia#20656Cno 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 text6.85:1WCAG large text: AAA

Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.3 Dark slateblue · ΔE 24.8 Slate grey · ΔE 25.4 Light slate grey · ΔE 27 Cornflower blue · ΔE 30.6 Dim grey · ΔE 31.1

Nearest named CSS colourSteel blue (#4682B4)ΔE 17.27, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8B7342

Analogous#427F8B, #4E428B

Triadic#8B425A, #5A8B42

Split complementary#8B4F42, #7F8B42

Tetradic#8B427F, #8B7342, #428B4F

Tints, shades & saturation

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

Lighter +40%#BBC6DE

Lighter +30%#98AACE

Lighter +20%#758DBE

Lighter +10%#5371AD

Darker −10%#324468

Darker −20%#212D46

Darker −30%#111723

Darker −40%#000001

More saturated +25%#2851A5

Less saturated −25%#5C6371

Channel breakdown

R66

G90

B139

Red66 (25.9%)

Green90 (35.3%)

Blue139 (54.5%)

Hue220.27°

Saturation (HSL)35.61%

Lightness40.2%

Dominant channelBlue

Hex per channelR 42 · G 5A · B 8B

Keep nerding

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

#425A8B

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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