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Colour

#2B317E

  • #2B317E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B317E is a blue with RGB values 43, 49, 126 and HSL 236°, 49%, 33%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2B317E#2B317E
HEX#2B317E
RGBrgb(43, 49, 126)
RGB (0–1)0.1686, 0.1922, 0.4941
RGB percentages16.9%, 19.2%, 49.4%
HSLhsl(235.7, 49.1%, 33.1%)
HSV / HSBhsv(235.7, 65.9%, 49.4%)
CMYK65.9%, 61.1%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,830,718
CSS custom property--colour: #2B317E;

Brightness & contrast

Relative luminance0.04217WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.39:1
Contrast with white11.39:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#D4CE81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003E81no red cones; affects about 1% of men; ΔE 12.9 from the original
Deuteranopia#00367Cno green cones; the most common form, about 1% of men; ΔE 9 from the original
Tritanopia#004452no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.39:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 7.4Midnight blue · ΔE 12.9Rebecca purple · ΔE 21.3Slate blue · ΔE 27.8Indigo · ΔE 29.8Royal blue · ΔE 31.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 7.36, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E782B
Analogous#2B5B7E, #4E2B7E
Triadic#7E2B31, #317E2B
Split complementary#7E4E2B, #5B7E2B
Tetradic#7E2B5B, #7E782B, #2B7E4E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#999EDC
Lighter +30%#737ACF
Lighter +20%#4D55C2
Lighter +10%#3840A4
Darker −10%#1E2258
Darker −20%#111332
Darker −30%#04050C
Darker −40%#000000
More saturated +25%#161F93
Less saturated −25%#404369

Channel breakdown

R43
G49
B126
Red43 (16.9%)
Green49 (19.2%)
Blue126 (49.4%)
Hue235.66°
Saturation (HSL)49.11%
Lightness33.14%
Dominant channelBlue
Hex per channelR 2B · G 31 · B 7E

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Every value on this page was computed from “2b317e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.