Recognised as Colour

#30657B

#30657B
Cyan
Dark
Nearest: Dark slate grey

#30657B is a cyan with RGB values 48, 101, 123 and HSL 198°, 44%, 34%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#30657B#30657B

HEX#30657B

RGBrgb(48, 101, 123)

RGB (0–1)0.1882, 0.3961, 0.4824

RGB percentages18.8%, 39.6%, 48.2%

HSLhsl(197.6, 43.9%, 33.5%)

HSV / HSBhsv(197.6, 61%, 48.2%)

CMYK61%, 17.9%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,171,707

CSS custom property--colour: #30657B;

Brightness & contrast

Relative luminance0.11366WCAG 2.x, 0 is black and 1 is white

Perceived brightness91.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.42:1

Contrast with white6.42:1WCAG normal text: AA

Contrast with black3.27:1WCAG normal text: Fail

Greyscale equivalent#5B5B5B

Inverted#CF9A84

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#59637Cno red cones; affects about 1% of men; ΔE 13.3 from the original

Deuteranopia#4F5B7Bno green cones; the most common form, about 1% of men; ΔE 14.6 from the original

Tritanopia#006B6Cno blue cones; rare, and affects men and women equally; ΔE 17.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text6.42:1WCAG large text: AAA

Contrast with black, large text3.27:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 16.6 Slate grey · ΔE 16.8 Light slate grey · ΔE 19 Steel blue · ΔE 20.1 Dim grey · ΔE 21 Teal · ΔE 22

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.56, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7B4630

Analogous#307B6C, #303F7B

Triadic#7B3065, #657B30

Split complementary#7B303F, #7B6C30

Tetradic#6C307B, #7B4630, #3F7B30

Tints, shades & saturation

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

Lighter +40%#9EC8D9

Lighter +30%#79B3CB

Lighter +20%#559EBC

Lighter +10%#3E83A0

Darker −10%#224756

Darker −20%#132932

Darker −30%#050B0D

Darker −40%#000000

More saturated +25%#1B6E90

Less saturated −25%#455C66

Channel breakdown

R48

G101

B123

Red48 (18.8%)

Green101 (39.6%)

Blue123 (48.2%)

Hue197.6°

Saturation (HSL)43.86%

Lightness33.53%

Dominant channelBlue

Hex per channelR 30 · G 65 · B 7B

Keep nerding

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

#30657B

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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