Colour

#00235D

#00235D
Blue
Dark
Nearest: Dark slateblue

#00235D is a blue with RGB values 0, 35, 93 and HSL 217°, 100%, 18%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00235D#00235D

HEX#00235D

RGBrgb(0, 35, 93)

RGB (0–1)0, 0.1373, 0.3647

RGB percentages0%, 13.7%, 36.5%

HSLhsl(217.4, 100%, 18.2%)

HSV / HSBhsv(217.4, 100%, 36.5%)

CMYK100%, 62.4%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,053

CSS custom property--colour: #00235D;

Brightness & contrast

Relative luminance0.01992WCAG 2.x, 0 is black and 1 is white

Perceived brightness41.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.02:1

Contrast with white15.02:1WCAG normal text: AAA

Contrast with black1.4:1WCAG normal text: Fail

Greyscale equivalent#202020

Inverted#FFDCA2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002B5Fno red cones; affects about 1% of men; ΔE 6.6 from the original

Deuteranopia#00235Cno green cones; the most common form, about 1% of men; ΔE 0.7 from the original

Tritanopia#00323Cno blue cones; rare, and affects men and women equally; ΔE 37.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.02:1WCAG large text: AAA

Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.6 Midnight blue · ΔE 20.7 Rebecca purple · ΔE 34.5 Indigo · ΔE 40.5 Slate blue · ΔE 41.8 Steel blue · ΔE 41.9

Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.62, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5D3A00

Analogous#00525D, #0B005D

Triadic#5D0023, #235D00

Split complementary#5D0B00, #525D00

Tetradic#5D0052, #5D3A00, #005D0B

Tints, shades & saturation

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

Lighter +40%#2A7AFF

Lighter +30%#005DF6

Lighter +20%#0049C3

Lighter +10%#003690

Darker −10%#00102A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00235D

Less saturated −25%#0C2651

Channel breakdown

G35

B93

Red0 (0%)

Green35 (13.7%)

Blue93 (36.5%)

Hue217.42°

Saturation (HSL)100%

Lightness18.24%

Dominant channelBlue

Hex per channelR 00 · G 23 · B 5D

Keep nerding

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#00235D

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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