Recognised as Colour

#311B43

#311B43
Violet
Dark
Nearest: Dark slateblue

#311B43 is a violet with RGB values 49, 27, 67 and HSL 273°, 43%, 18%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#311B43#311B43

HEX#311B43

RGBrgb(49, 27, 67)

RGB (0–1)0.1922, 0.1059, 0.2627

RGB percentages19.2%, 10.6%, 26.3%

HSLhsl(273, 42.6%, 18.4%)

HSV / HSBhsv(273, 59.7%, 26.3%)

CMYK26.9%, 59.7%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,218,243

CSS custom property--colour: #311B43;

Brightness & contrast

Relative luminance0.01842WCAG 2.x, 0 is black and 1 is white

Perceived brightness40.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.35:1

Contrast with white15.35:1WCAG normal text: AAA

Contrast with black1.37:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#CEE4BC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0F2444no red cones; affects about 1% of men; ΔE 15.6 from the original

Deuteranopia#162542no green cones; the most common form, about 1% of men; ΔE 15.6 from the original

Tritanopia#2E222Cno blue cones; rare, and affects men and women equally; ΔE 20.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.35:1WCAG large text: AAA

Contrast with black, large text1.37:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.1 Midnight blue · ΔE 30.7 Black · ΔE 32.6 Rebecca purple · ΔE 39.1 Dark slate grey · ΔE 39.8 Dim grey · ΔE 41.7

Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.1, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2D431B

Analogous#1D1B43, #431B41

Triadic#43311B, #1B4331

Split complementary#41431B, #1B431D

Tetradic#431D1B, #2D431B, #1B4143

Tints, shades & saturation

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

Lighter +40%#9A68C2

Lighter +30%#8147B0

Lighter +20%#66388C

Lighter +10%#4C2A67

Darker −10%#160C1F

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#320F4F

Less saturated −25%#302737

Channel breakdown

R49

G27

B67

Red49 (19.2%)

Green27 (10.6%)

Blue67 (26.3%)

Hue273°

Saturation (HSL)42.55%

Lightness18.43%

Dominant channelBlue

Hex per channelR 31 · G 1B · B 43

Keep nerding

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

#311B43

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

Nerdulate something else