Recognised as Colour

#231BB7

#231BB7
Blue
Dark
Nearest: Dark blue

#231BB7 is a blue with RGB values 35, 27, 183 and HSL 243°, 74%, 41%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#231BB7#231BB7

HEX#231BB7

RGBrgb(35, 27, 183)

RGB (0–1)0.1373, 0.1059, 0.7176

RGB percentages13.7%, 10.6%, 71.8%

HSLhsl(243.1, 74.3%, 41.2%)

HSV / HSBhsv(243.1, 85.2%, 71.8%)

CMYK80.9%, 85.2%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,300,855

CSS custom property--colour: #231BB7;

Brightness & contrast

Relative luminance0.0456WCAG 2.x, 0 is black and 1 is white

Perceived brightness67.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.98:1

Contrast with white10.98:1WCAG normal text: AAA

Contrast with black1.91:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#DCE448

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0044BBno red cones; affects about 1% of men; ΔE 27 from the original

Deuteranopia#0034B4no green cones; the most common form, about 1% of men; ΔE 17.6 from the original

Tritanopia#004F6Dno blue cones; rare, and affects men and women equally; ΔE 83.9 from the original

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

Contrast with white, large text10.98:1WCAG large text: AAA

Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark blue · ΔE 14.6 Medium blue · ΔE 18.8 Navy · ΔE 19.3 Blue violet · ΔE 22.9 Indigo · ΔE 25.1 Dark violet · ΔE 27

Nearest named CSS colourDark blue (#00008B)ΔE 14.56, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AFB71B

Analogous#1B61B7, #711BB7

Triadic#B7231B, #1BB723

Split complementary#B7711B, #61B71B

Tetradic#B71B61, #AFB71B, #1BB771

Tints, shades & saturation

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

Lighter +40%#AFABF3

Lighter +30%#857FEC

Lighter +20%#5A52E6

Lighter +10%#3026DF

Darker −10%#1B148B

Darker −20%#120E5E

Darker −30%#0A0732

Darker −40%#010105

More saturated +25%#0B01D1

Less saturated −25%#3B359D

Channel breakdown

R35

G27

B183

Red35 (13.7%)

Green27 (10.6%)

Blue183 (71.8%)

Hue243.08°

Saturation (HSL)74.29%

Lightness41.18%

Dominant channelBlue

Hex per channelR 23 · G 1B · B B7

Keep nerding

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

#231BB7

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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