Nerdulator> put something in

Colour

#211F5B

  • #211F5B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#211F5B is a blue with RGB values 33, 31, 91 and HSL 242°, 49%, 24%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#211F5B#211F5B
HEX#211F5B
RGBrgb(33, 31, 91)
RGB (0–1)0.1294, 0.1216, 0.3569
RGB percentages12.9%, 12.2%, 35.7%
HSLhsl(242, 49.2%, 23.9%)
HSV / HSBhsv(242, 65.9%, 35.7%)
CMYK63.7%, 65.9%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,170,715
CSS custom property--colour: #211F5B;

Brightness & contrast

Relative luminance0.02059WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.88:1
Contrast with white14.88:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#DEE0A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002A5Dno red cones; affects about 1% of men; ΔE 12 from the original
Deuteranopia#00255Ano green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#002E39no blue cones; rare, and affects men and women equally; ΔE 39.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.88:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17Midnight blue · ΔE 17.4Rebecca purple · ΔE 29.9Indigo · ΔE 35.6Navy · ΔE 39.2Slate blue · ΔE 39.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.03, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#595B1F
Analogous#1F3B5B, #3F1F5B
Triadic#5B211F, #1F5B21
Split complementary#5B3F1F, #3B5B1F
Tetradic#5B1F3B, #595B1F, #1F5B3F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7976D0
Lighter +30%#5450C3
Lighter +20%#3D39A7
Lighter +10%#2F2C81
Darker −10%#131235
Darker −20%#05050F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#13106A
Less saturated −25%#2F2E4C

Channel breakdown

R33
G31
B91
Red33 (12.9%)
Green31 (12.2%)
Blue91 (35.7%)
Hue242°
Saturation (HSL)49.18%
Lightness23.92%
Dominant channelBlue
Hex per channelR 21 · G 1F · B 5B

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “211f5b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.