Recognised as Colour

#00123A

#00123A
Blue
Dark
Nearest: Black

#00123A is a blue with RGB values 0, 18, 58 and HSL 221°, 100%, 11%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00123A#00123A

HEX#00123A

RGBrgb(0, 18, 58)

RGB (0–1)0, 0.0706, 0.2275

RGB percentages0%, 7.1%, 22.7%

HSLhsl(221.4, 100%, 11.4%)

HSV / HSBhsv(221.4, 100%, 22.7%)

CMYK100%, 69%, 0%, 77.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,666

CSS custom property--colour: #00123A;

Brightness & contrast

Relative luminance0.00738WCAG 2.x, 0 is black and 1 is white

Perceived brightness24 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.3:1

Contrast with white18.3:1WCAG normal text: AAA

Contrast with black1.15:1WCAG normal text: Fail

Greyscale equivalent#111111

Inverted#FFEDC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00183Bno red cones; affects about 1% of men; ΔE 5.3 from the original

Deuteranopia#001239no green cones; the most common form, about 1% of men; ΔE 0.8 from the original

Tritanopia#001C23no blue cones; rare, and affects men and women equally; ΔE 27.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.3:1WCAG large text: AAA

Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Black · ΔE 30.8 Midnight blue · ΔE 31.3 Dark slateblue · ΔE 31.7 Dark slate grey · ΔE 41.4 Rebecca purple · ΔE 45.5 Dim grey · ΔE 48.2

Nearest named CSS colourBlack (#000000)ΔE 30.78, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3A2800

Analogous#002F3A, #0B003A

Triadic#3A0012, #123A00

Split complementary#3A0B00, #2F3A00

Tetradic#3A002F, #3A2800, #003A0B

Tints, shades & saturation

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

Lighter +40%#0754FF

Lighter +30%#0041D3

Lighter +20%#0032A0

Lighter +10%#00226D

Darker −10%#000207

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00123A

Less saturated −25%#071533

Channel breakdown

G18

B58

Red0 (0%)

Green18 (7.1%)

Blue58 (22.7%)

Hue221.38°

Saturation (HSL)100%

Lightness11.37%

Dominant channelBlue

Hex per channelR 00 · G 12 · B 3A

Keep nerding

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

#00123A

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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