Colour

#010033

#010033
Blue
Dark
Nearest: Midnight blue

#010033 is a blue with RGB values 1, 0, 51 and HSL 241°, 100%, 10%. It is a dark colour, so white text on it reaches 20:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#010033#010033

HEX#010033

RGBrgb(1, 0, 51)

RGB (0–1)0.0039, 0, 0.2

RGB percentages0.4%, 0%, 20%

HSLhsl(241.2, 100%, 10%)

HSV / HSBhsv(241.2, 100%, 20%)

CMYK98%, 100%, 0%, 80%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer65,587

CSS custom property--colour: #010033;

Brightness & contrast

Relative luminance0.00245WCAG 2.x, 0 is black and 1 is white

Perceived brightness17.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 20.02:1

Contrast with white20.02:1WCAG normal text: AAA

Contrast with black1.05:1WCAG normal text: Fail

Greyscale equivalent#040404

Inverted#FEFFCC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000B34no red cones; affects about 1% of men; ΔE 5.4 from the original

Deuteranopia#000532no green cones; the most common form, about 1% of men; ΔE 3.6 from the original

Tritanopia#000F1Ano blue cones; rare, and affects men and women equally; ΔE 27.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text20.02:1WCAG large text: AAA

Contrast with black, large text1.05:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 28.9 Dark slateblue · ΔE 32.8 Black · ΔE 33.8 Rebecca purple · ΔE 44.6 Indigo · ΔE 46.8 Dark slate grey · ΔE 47.6

Nearest named CSS colourMidnight blue (#191970)ΔE 28.91, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#323300

Analogous#001833, #1B0033

Triadic#330100, #003301

Split complementary#331B00, #183300

Tetradic#330018, #323300, #00331B

Tints, shades & saturation

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

Lighter +40%#0500FF

Lighter +30%#0400CC

Lighter +20%#030099

Lighter +10%#020066

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#010033

Less saturated −25%#07062D

Channel breakdown

B51

Red1 (0.4%)

Green0 (0%)

Blue51 (20%)

Hue241.18°

Saturation (HSL)100%

Lightness10%

Dominant channelBlue

Hex per channelR 01 · G 00 · B 33

Keep nerding

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#010033

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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