Recognised as Colour

#1D31DA

#1D31DA
Blue
Dark
Nearest: Medium blue

#1D31DA is a blue with RGB values 29, 49, 218 and HSL 234°, 77%, 48%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1D31DA#1D31DA

HEX#1D31DA

RGBrgb(29, 49, 218)

RGB (0–1)0.1137, 0.1922, 0.8549

RGB percentages11.4%, 19.2%, 85.5%

HSLhsl(233.7, 76.5%, 48.4%)

HSV / HSBhsv(233.7, 86.7%, 85.5%)

CMYK86.7%, 77.5%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,913,306

CSS custom property--colour: #1D31DA;

Brightness & contrast

Relative luminance0.0752WCAG 2.x, 0 is black and 1 is white

Perceived brightness84.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.39:1

Contrast with white8.39:1WCAG normal text: AAA

Contrast with black2.5:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#E2CE25

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0057DFno red cones; affects about 1% of men; ΔE 26.1 from the original

Deuteranopia#0044D7no green cones; the most common form, about 1% of men; ΔE 14.9 from the original

Tritanopia#006585no blue cones; rare, and affects men and women equally; ΔE 91 from the original

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

Contrast with white, large text8.39:1WCAG large text: AAA

Contrast with black, large text2.5:1WCAG large text: Fail

Named colours

Medium blue · ΔE 16 Blue violet · ΔE 20.9 Dark blue · ΔE 25.3 Dark violet · ΔE 27.4 Dark orchid · ΔE 29.6 Navy · ΔE 29.9

Nearest named CSS colourMedium blue (#0000CD)ΔE 15.96, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DAC61D

Analogous#1D90DA, #671DDA

Triadic#DA1D31, #31DA1D

Split complementary#DA671D, #90DA1D

Tetradic#DA1D90, #DAC61D, #1DDA67

Tints, shades & saturation

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

Lighter +40%#CBD0F8

Lighter +30%#9EA7F2

Lighter +20%#717EEC

Lighter +10%#4455E6

Darker −10%#1727AD

Darker −20%#111D80

Darker −30%#0B1353

Darker −40%#050926

More saturated +25%#001AF7

Less saturated −25%#3C49BB

Channel breakdown

R29

G49

B218

Red29 (11.4%)

Green49 (19.2%)

Blue218 (85.5%)

Hue233.65°

Saturation (HSL)76.52%

Lightness48.43%

Dominant channelBlue

Hex per channelR 1D · G 31 · B DA

Keep nerding

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

#1D31DA

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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