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Recognised as Colour

#2B2870

  • #2B2870
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2B2870 is a blue with RGB values 43, 40, 112 and HSL 243°, 47%, 30%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2B2870#2B2870
HEX#2B2870
RGBrgb(43, 40, 112)
RGB (0–1)0.1686, 0.1569, 0.4392
RGB percentages16.9%, 15.7%, 43.9%
HSLhsl(242.5, 47.4%, 29.8%)
HSV / HSBhsv(242.5, 64.3%, 43.9%)
CMYK61.6%, 64.3%, 0%, 56.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,828,400
CSS custom property--colour: #2B2870;

Brightness & contrast

Relative luminance0.03201WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.8:1
Contrast with white12.8:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#D4D78F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003572no red cones; affects about 1% of men; ΔE 14 from the original
Deuteranopia#002F6Fno green cones; the most common form, about 1% of men; ΔE 10.7 from the original
Tritanopia#003A48no blue cones; rare, and affects men and women equally; ΔE 45.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.8:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.1Midnight blue · ΔE 12Rebecca purple · ΔE 22.7Indigo · ΔE 29.7Slate blue · ΔE 31.7Navy · ΔE 33.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D7028
Analogous#284970, #4F2870
Triadic#702B28, #28702B
Split complementary#704F28, #497028
Tetradic#702849, #6D7028, #28704F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#918ED6
Lighter +30%#6C68C9
Lighter +20%#4843BB
Lighter +10%#393596
Darker −10%#1D1B4A
Darker −20%#0E0D25
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1A1583
Less saturated −25%#3C3B5D

Channel breakdown

R43
G40
B112
Red43 (16.9%)
Green40 (15.7%)
Blue112 (43.9%)
Hue242.5°
Saturation (HSL)47.37%
Lightness29.8%
Dominant channelBlue
Hex per channelR 2B · G 28 · B 70

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Every value on this page was computed from “2b2870” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.