Colour

#003F67

#003F67
Blue
Dark
Nearest: Dark slate grey

#003F67 is a blue with RGB values 0, 63, 103 and HSL 203°, 100%, 20%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#003F67#003F67

HEX#003F67

RGBrgb(0, 63, 103)

RGB (0–1)0, 0.2471, 0.4039

RGB percentages0%, 24.7%, 40.4%

HSLhsl(203.3, 100%, 20.2%)

HSV / HSBhsv(203.3, 100%, 40.4%)

CMYK100%, 38.8%, 0%, 59.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,231

CSS custom property--colour: #003F67;

Brightness & contrast

Relative luminance0.04534WCAG 2.x, 0 is black and 1 is white

Perceived brightness59.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.01:1

Contrast with white11.01:1WCAG normal text: AAA

Contrast with black1.91:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#FFC098

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2B4169no red cones; affects about 1% of men; ΔE 6.7 from the original

Deuteranopia#1C3866no green cones; the most common form, about 1% of men; ΔE 8.1 from the original

Tritanopia#00494Eno blue cones; rare, and affects men and women equally; ΔE 25.8 from the original

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

Contrast with white, large text11.01:1WCAG large text: AAA

Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 27.4 Steel blue · ΔE 27.5 Dark slateblue · ΔE 31 Slate grey · ΔE 32.7 Dim grey · ΔE 34.2 Light slate grey · ΔE 35.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 27.45, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#672800

Analogous#00675B, #000C67

Triadic#67003F, #3F6700

Split complementary#67000C, #675C00

Tetradic#5B0067, #672800, #0B6700

Tints, shades & saturation

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

Lighter +40%#34B0FF

Lighter +30%#019CFF

Lighter +20%#007DCD

Lighter +10%#005E9A

Darker −10%#002034

Darker −20%#000101

Darker −30%#000000

Darker −40%#000000

More saturated +25%#003F67

Less saturated −25%#0D3C5A

Channel breakdown

G63

B103

Red0 (0%)

Green63 (24.7%)

Blue103 (40.4%)

Hue203.3°

Saturation (HSL)100%

Lightness20.2%

Dominant channelBlue

Hex per channelR 00 · G 3F · B 67

Keep nerding

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

#003F67

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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