Colour

#1031A3

#1031A3
Blue
Dark
Nearest: Midnight blue

#1031A3 is a blue with RGB values 16, 49, 163 and HSL 227°, 82%, 35%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1031A3#1031A3

HEX#1031A3

RGBrgb(16, 49, 163)

RGB (0–1)0.0627, 0.1922, 0.6392

RGB percentages6.3%, 19.2%, 63.9%

HSLhsl(226.5, 82.1%, 35.1%)

HSV / HSBhsv(226.5, 90.2%, 63.9%)

CMYK90.2%, 69.9%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,061,283

CSS custom property--colour: #1031A3;

Brightness & contrast

Relative luminance0.04951WCAG 2.x, 0 is black and 1 is white

Perceived brightness67.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.55:1

Contrast with white10.55:1WCAG normal text: AAA

Contrast with black1.99:1WCAG normal text: Fail

Greyscale equivalent#323232

Inverted#EFCE5C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0046A6no red cones; affects about 1% of men; ΔE 16.4 from the original

Deuteranopia#0038A1no green cones; the most common form, about 1% of men; ΔE 7 from the original

Tritanopia#005166no blue cones; rare, and affects men and women equally; ΔE 66.3 from the original

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

Contrast with white, large text10.55:1WCAG large text: AAA

Contrast with black, large text1.99:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 18.1 Navy · ΔE 18.6 Rebecca purple · ΔE 19.6 Slate blue · ΔE 19.7 Dark blue · ΔE 20.2 Indigo · ΔE 20.8

Nearest named CSS colourMidnight blue (#191970)ΔE 18.09, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A38210

Analogous#107AA3, #3810A3

Triadic#A31031, #31A310

Split complementary#A33810, #7AA310

Tetradic#A3107B, #A38210, #10A338

Tints, shades & saturation

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

Lighter +40%#8BA3F4

Lighter +30%#5D7EEF

Lighter +20%#2E59EB

Lighter +10%#153FD1

Darker −10%#0B2375

Darker −20%#071546

Darker −30%#020718

Darker −40%#000000

More saturated +25%#0028B3

Less saturated −25%#263D8D

Channel breakdown

R16

G49

B163

Red16 (6.3%)

Green49 (19.2%)

Blue163 (63.9%)

Hue226.53°

Saturation (HSL)82.12%

Lightness35.1%

Dominant channelBlue

Hex per channelR 10 · G 31 · B A3

Keep nerding

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#1031A3

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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