Colour

#0131B3

#0131B3
Blue
Dark
Nearest: Dark blue

#0131B3 is a blue with RGB values 1, 49, 179 and HSL 224°, 99%, 35%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0131B3#0131B3

HEX#0131B3

RGBrgb(1, 49, 179)

RGB (0–1)0.0039, 0.1922, 0.702

RGB percentages0.4%, 19.2%, 70.2%

HSLhsl(223.8, 98.9%, 35.3%)

HSV / HSBhsv(223.8, 99.4%, 70.2%)

CMYK99.4%, 72.6%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer78,259

CSS custom property--colour: #0131B3;

Brightness & contrast

Relative luminance0.05458WCAG 2.x, 0 is black and 1 is white

Perceived brightness71.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.04:1

Contrast with white10.04:1WCAG normal text: AAA

Contrast with black2.09:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#FECE4C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#004AB7no red cones; affects about 1% of men; ΔE 18.4 from the original

Deuteranopia#003AB1no green cones; the most common form, about 1% of men; ΔE 8.1 from the original

Tritanopia#00576Fno blue cones; rare, and affects men and women equally; ΔE 74.1 from the original

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

Contrast with white, large text10.04:1WCAG large text: AAA

Contrast with black, large text2.09:1WCAG large text: Fail

Named colours

Dark blue · ΔE 16.8 Navy · ΔE 17.9 Slate blue · ΔE 22.3 Indigo · ΔE 22.4 Rebecca purple · ΔE 24.6 Medium slateblue · ΔE 24.8

Nearest named CSS colourDark blue (#00008B)ΔE 16.85, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B38301

Analogous#018AB3, #2A01B3

Triadic#B30131, #31B301

Split complementary#B32A01, #8AB301

Tetradic#B3018A, #B38301, #01B32A

Tints, shades & saturation

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

Lighter +40%#82A3FE

Lighter +30%#4F7EFE

Lighter +20%#1C59FE

Lighter +10%#013FE6

Darker −10%#012380

Darker −20%#00154E

Darker −30%#00071B

Darker −40%#000000

More saturated +25%#0031B4

Less saturated −25%#183B9C

Channel breakdown

G49

B179

Red1 (0.4%)

Green49 (19.2%)

Blue179 (70.2%)

Hue223.82°

Saturation (HSL)98.89%

Lightness35.29%

Dominant channelBlue

Hex per channelR 01 · G 31 · B B3

Keep nerding

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

#0131B3

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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