Colour

#00455A

#00455A
Cyan
Dark
Nearest: Dark slate grey

#00455A is a cyan with RGB values 0, 69, 90 and HSL 194°, 100%, 18%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#00455A#00455A

HEX#00455A

RGBrgb(0, 69, 90)

RGB (0–1)0, 0.2706, 0.3529

RGB percentages0%, 27.1%, 35.3%

HSLhsl(194, 100%, 17.6%)

HSV / HSBhsv(194, 100%, 35.3%)

CMYK100%, 23.3%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer17,754

CSS custom property--colour: #00455A;

Brightness & contrast

Relative luminance0.04994WCAG 2.x, 0 is black and 1 is white

Perceived brightness61 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.51:1

Contrast with white10.51:1WCAG normal text: AAA

Contrast with black2:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#FFBAA5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3A435Bno red cones; affects about 1% of men; ΔE 13.9 from the original

Deuteranopia#2F3C5Ano green cones; the most common form, about 1% of men; ΔE 14.6 from the original

Tritanopia#004B4Cno blue cones; rare, and affects men and women equally; ΔE 14.6 from the original

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

Contrast with white, large text10.51:1WCAG large text: AAA

Contrast with black, large text2:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 14.9 Dim grey · ΔE 27.3 Slate grey · ΔE 28.4 Teal · ΔE 29.7 Steel blue · ΔE 30.2 Light slate grey · ΔE 31.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 14.88, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5A1500

Analogous#005A42, #00185A

Triadic#5A0045, #455A00

Split complementary#5A0018, #5A4200

Tetradic#42005A, #5A1500, #185A00

Tints, shades & saturation

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

Lighter +40%#27CDFF

Lighter +30%#00BAF3

Lighter +20%#0093C0

Lighter +10%#006C8D

Darker −10%#001E27

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00455A

Less saturated −25%#0B3F4F

Channel breakdown

G69

B90

Red0 (0%)

Green69 (27.1%)

Blue90 (35.3%)

Hue194°

Saturation (HSL)100%

Lightness17.65%

Dominant channelBlue

Hex per channelR 00 · G 45 · B 5A

Keep nerding

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#00455A

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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