Recognised as Colour

#0017CB

#0017CB
Blue
Dark
Nearest: Medium blue

#0017CB is a blue with RGB values 0, 23, 203 and HSL 233°, 100%, 40%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0017CB#0017CB

HEX#0017CB

RGBrgb(0, 23, 203)

RGB (0–1)0, 0.0902, 0.7961

RGB percentages0%, 9%, 79.6%

HSLhsl(233.2, 100%, 39.8%)

HSV / HSBhsv(233.2, 100%, 79.6%)

CMYK100%, 88.7%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,091

CSS custom property--colour: #0017CB;

Brightness & contrast

Relative luminance0.04925WCAG 2.x, 0 is black and 1 is white

Perceived brightness70.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.58:1

Contrast with white10.58:1WCAG normal text: AAA

Contrast with black1.98:1WCAG normal text: Fail

Greyscale equivalent#1F1F1F

Inverted#FFE834

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0049D0no red cones; affects about 1% of men; ΔE 30.4 from the original

Deuteranopia#0034C8no green cones; the most common form, about 1% of men; ΔE 18.1 from the original

Tritanopia#005778no blue cones; rare, and affects men and women equally; ΔE 94.7 from the original

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

Contrast with white, large text10.58:1WCAG large text: AAA

Contrast with black, large text1.98:1WCAG large text: Fail

Named colours

Medium blue · ΔE 7.4 Blue violet · ΔE 22.2 Dark blue · ΔE 24.8 Dark violet · ΔE 26.6 Blue · ΔE 27.7 Navy · ΔE 30

Nearest named CSS colourMedium blue (#0000CD)ΔE 7.38, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CBB400

Analogous#007DCB, #4F00CB

Triadic#CB0017, #17CB00

Split complementary#CB4F00, #7DCB00

Tetradic#CB007C, #CBB400, #00CB4E

Tints, shades & saturation

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

Lighter +40%#98A4FF

Lighter +30%#6576FF

Lighter +20%#3249FF

Lighter +10%#001DFE

Darker −10%#001198

Darker −20%#000B65

Darker −30%#000632

Darker −40%#000000

More saturated +25%#0017CB

Less saturated −25%#192BB2

Channel breakdown

G23

B203

Red0 (0%)

Green23 (9%)

Blue203 (79.6%)

Hue233.2°

Saturation (HSL)100%

Lightness39.8%

Dominant channelBlue

Hex per channelR 00 · G 17 · B CB

Keep nerding

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

#0017CB

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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